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Research Articles
A scientometric, bibliometric, and thematic map analysis of hydraulic calcium silicate root canal sealers
Anastasios Katakidis, Konstantinos Kodonas, Anastasia Fardi, Christos Gogos
Restor Dent Endod 2023;48(4):e41.   Published online November 13, 2023
DOI: https://doi.org/10.5395/rde.2023.48.e41
AbstractAbstract PDFPubReaderePub
Objectives

This scientometric and bibliometric analysis explored scientific publications related to hydraulic calcium silicate-based (HCSB) sealers used in endodontology, aiming to describe basic bibliometric indicators and analyze current research trends.

Materials and Methods

A comprehensive search was conducted in Web of Science and Scopus using specific HCSB sealer and general endodontic-related terms. Basic research parameters were collected, including publication year, authorship, countries, institutions, journals, level of evidence, study design and topic of interest, title terms, author keywords, citation counts, and density.

Results

In total, 498 articles published in 136 journals were retrieved for the period 2008–2023. Brazil was the leading country, and the universities of Bologna in Italy and Sao Paolo in Brazil were represented equally as leading institutions. The most frequently occurring keywords were “calcium silicate,” “root canal sealer MTA-Fillapex,” and “biocompatibility,” while title terms such as “calcium,” “sealers,” “root,” “canal,” “silicate based,” and “endodontic” occurred most often. According to the thematic map analysis, “solubility” appeared as a basic theme of concentrated research interest, and “single-cone technique” was identified as an emerging, inadequately developed theme. The co-occurrence analysis revealed 4 major clusters centered on sealers’ biological and physicochemical properties, obturation techniques, retreatability, and adhesion.

Conclusions

This analysis presents bibliographic features and outlines changing trends in HCSB sealer research. The research output is dominated by basic science articles scrutinizing the biological and specific physicochemical properties of commonly used HCSB sealers. Future research needs to be guided by studies with a high level of evidence that utilize innovative, sophisticated technologies.

Citations

Citations to this article as recorded by  
  • Agri-Food Sector: Contemporary Trends, Possible Gaps, and Prospective Directions
    José Roberto Herrera Cantorani, Meire Ramalho de Oliveira, Luiz Alberto Pilatti, Thales Botelho de Sousa
    Metrics.2025; 2(1): 3.     CrossRef
  • Scientific mapping of experimental research on solar cookers: Global trends, evolution, and future directions
    Flavio Odoi-Yorke, Bismark Baah, Richard Opoku
    Solar Energy Advances.2025; 5: 100093.     CrossRef
  • A bibliometric analysis of global research trend and progress on Dy doped materials
    Sangeeta Kadyan, Manju Nain, Ashima Makhija, Poonam Punia, Anil Ohlan, Sajjan Dahiya, R. Punia, A.S. Maan
    Journal of Alloys and Compounds Communications.2024; 3: 100006.     CrossRef
  • Comparative bioactivity and immunomodulatory potential of the new Bioroot Flow and AH Plus Bioceramic sealer: An in vitro study on hPDLSCs
    José Luis Sanz, Sergio López-García, David García-Bernal, Francisco Javier Rodríguez-Lozano, Leopoldo Forner, Adrián Lozano, Laura Murcia
    Clinical Oral Investigations.2024;[Epub]     CrossRef
  • Analyzing collaboration and impact: A bibliometric review of four highly published authors’ research profiles on collaborative maps
    Willy Chou, Julie Chi Chow
    Medicine.2024; 103(28): e38686.     CrossRef
  • 416 View
  • 14 Download
  • 2 Web of Science
  • 5 Crossref
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Tip and taper compatibility of accessory gutta-percha points with rotary and reciprocating instruments
Júlia Niero Zanatta Streck, Sabrina Arcaro, Renan Antônio Ceretta, Eduardo Antunes Bortoluzzi, Lucas da Fonseca Roberti Garcia, Josiane de Almeida, Patrícia Maria Poli Kopper, Anarela Vassen Bernardi
Restor Dent Endod 2023;48(3):e22.   Published online June 8, 2023
DOI: https://doi.org/10.5395/rde.2023.48.e22
AbstractAbstract PDFPubReaderePub
Objectives

This study was conducted to evaluate and compare the tip and taper compatibility of accessory gutta-percha points (AGPs) with various rotary and reciprocating instruments.

Materials and Methods

Using a profile analyzer, tip and taper measurements were taken of 10 AGPs of each of the 14 models available from Odous de Deus and the 4 models available from Dentsply-Maillefer. Diameter measurements were taken at 1-mm intervals, from 3 mm from the tip (D3) to 16 mm.

Results

Based on the mean values obtained, 3-dimensional (3D) models of the AGPs were drawn in Autodesk Fusion 360 and superimposed on 3D models of each instrument selected (Mtwo, Reciproc, RaCe, K3, and ProDesign Logic) to determine the compatibility between the instrument and the AGP. Data corresponding to the tips and tapers of the various AGPs, as well as the tip and taper differences between the AGPs and the instruments, were analyzed using descriptive statistics. The tapers of the AGPs were subject to the American National Standards Institute/American Dental Association No. 57 standard. The Odous de Deus extra-long medium and extra-long extra-medium AGPs were shown to be compatible with Mtwo, K3, and ProDesign Logic instruments with taper 0.06 and tip sizes 25 and 30, while the Dentsply fine and fine medium cones were compatible with Mtwo, RaCe, and K3 instruments with conicity of 0.04 and tip sizes 35 and 40.

Conclusions

Both the Odous de Deus and Dentsply commercial brands included 2 AGP models with tip (D3) and taper compatibility with Mtwo, RaCe, K3, and/or Prodesign Logic instruments.

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Review Articles
Effect of endodontic sealer on postoperative pain: a network meta-analysis
Cynthia Maria Chaves Monteiro, Ana Cristina Rodrigues Martins, Alessandra Reis, Juliana Larocca de Geus
Restor Dent Endod 2023;48(1):e5.   Published online December 29, 2022
DOI: https://doi.org/10.5395/rde.2023.48.e5
AbstractAbstract PDFPubReaderePub

This systematic review and network meta-analysis aimed to answer the following focused research question: “Does the type of endodontic sealer affect the postoperative pain in patients who received endodontic treatment?” Different databases and grey literature were surveyed. Only one randomized controlled trial were included. The risk of bias in the studies was evaluated by using the Cochrane Collaboration’s tool. A random-effects meta-analysis was conducted to compare the risk and intensity of postoperative pain. The quality of the body of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation approach. Out of 11,601 studies, 15 remained for qualitative analyses and 12 for meta-analysis. Seven studies were classified at high risk of bias, and 8 studies raised some concerns. No significant differences between the endodontic materials were observed in the direct comparisons, both in risk and in intensity of postoperative pain (pairwise comparisons with 2 studies: I2 = 0%; p > 0.05 and 8 studies: I2 = 23%; p > 0.05, respectively). The certainty of the evidence was graded as low or moderate. There was no difference in the risk and intensity of postoperative pain after filling with different endodontic sealers. Further systematic reviews should be conducted.

Trial Registration

PROSPERO Identifier: CRD42020215314

Citations

Citations to this article as recorded by  
  • Comparative evaluation of postoperative pain and periapical healing after root canal treatment using three different endodontic sealers: A randomized controlled clinical trial
    Ruchika Pandey, Nitin Kararia, Deepak Kumar Sharma, Vishal Rathod, Anand Vilas Bansod, Dhaval Desai
    Journal of Conservative Dentistry and Endodontics.2024; 27(9): 962.     CrossRef
  • Effect of bioceramic-based and resin-based sealers on postoperative discomfort following root canal therapy: a systematic review and meta-analysis
    Mansi Supare, Ajinkya M. Pawar, Kashmira Sawant, Dian Agustin Wahjuningrum, Suraj Arora, Firas Elmsmari, Mohmed Isaqali Karobari, Bhagyashree Thakur
    PeerJ.2024; 12: e18198.     CrossRef
  • Comparative Evaluation of Incidences of Post Operative Pain in Patient Treated in Single Visit Root Canal Treatment by Using Different Sealers: - An in-Vivo Study
    Sadashiv Daokar, Aishwarya Ranjalkar, Kalpana Pawar, Komal Potfode, Dhanashri Padwal, Sana Khan
    International Journal of Innovative Science and Research Technology (IJISRT).2024; : 2743.     CrossRef
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  • 23 Download
  • 1 Web of Science
  • 3 Crossref
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Influence of the root canal filling technique on the success rate of primary endodontic treatments: a systematic review
Daniel Feijolo Marconi, Giovana Siocheta da Silva, Theodoro Weissheimer, Isadora Ames Silva, Gabriel Barcelos Só, Leonardo Thomasi Jahnke, Jovito Adiel Skupien, Marcus Vinicius Reis Só, Ricardo Abreu da Rosa
Restor Dent Endod 2022;47(4):e40.   Published online October 11, 2022
DOI: https://doi.org/10.5395/rde.2022.47.e40
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Objectives

This study aimed to investigate the influence of different obturation techniques compared to cold lateral compaction on the success rate of primary non-surgical endodontic treatments.

Materials and Methods

Systematic searches were performed for studies published up to May 17th, 2022 in MEDLINE/PubMed, Cochrane Library, Web of Science, Scopus, EMBASE, and Grey Literature Reports. Randomized clinical trials and nonrandomized (nonrandomized clinical trials, prospective or retrospective) studies that evaluated the success rate of primary non-surgical endodontic treatments obturated with the cold lateral compaction (control) and other obturation techniques were included. The revised Cochrane risk of bias tools for randomized trials (RoB 2) and nonrandomized studies of interventions (ROBINS-I) were used to evaluate the risk of bias. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) tool was used to evaluate the certainty of evidence.

Results

Eleven studies (4 randomized clinical trials (RCTs), 4 prospective, and 3 retrospectives) were included. Two RCTs were classified as having some concerns risk of bias and 2 as a low risk of bias. Two nonrandomized studies were classified as having a critical risk of bias and 5 as having a moderate risk of bias. The GRADE analysis demonstrated a very low to moderate certainty of evidence.

Conclusions

This systematic review generally evidenced no differences in the success rate of primary non-surgical endodontic treatments when the cold lateral compaction technique and other obturation techniques are performed. Further well-designed studies are still necessary.

Citations

Citations to this article as recorded by  
  • Comparative Analysis Of Obturation Techniques In Endodontics: Lateral Vs. Thermoplasticized. Thermoplasticized
    Juan Esteban Díaz Pacheco , Rómulo Guillermo López Torres , Verónica Alejandra Salame Ortíz
    Salud, Ciencia y Tecnología.2025; 5: 1626.     CrossRef
  • Clinical and Radiographic Failure of Nonsurgical Endodontic Treatment and Retreatment Using Single-cone Technique With Calcium Silicate-based Sealers: A Systematic Review and Meta-analysis
    Mohammad A. Sabeti, Negah Karimpourtalebi, Arash Shahravan, Omid Dianat
    Journal of Endodontics.2024; 50(6): 735.     CrossRef
  • Method of microbial decontamination of endodontic absorbent paper points: a randomised experimental study
    O. A. Pavlovskaya, O. A. Kachanova, V. V. Volobuev, M. N. Mitropanova, A. R. Gazarova, V. Y. Zobenko, A. G. Uvarova
    Pediatric dentistry and dental prophylaxis.2024; 24(2): 157.     CrossRef
  • The Push-Out Bond Strength, Surface Roughness, and Antimicrobial Properties of Endodontic Bioceramic Sealers Supplemented with Silver Nanoparticles
    Karla Navarrete-Olvera, Nereyda Niño-Martínez, Idania De Alba-Montero, Nuria Patiño-Marín, Facundo Ruiz, Horacio Bach, Gabriel-Alejandro Martínez-Castañón
    Molecules.2024; 29(18): 4422.     CrossRef
  • Clinical outcome of non-surgical root canal treatment using different sealers and techniques of obturation in 237 patients: A retrospective study
    Mateusz Radwanski, Krystyna Pietrzycka, Tan Fırat Eyüboğlu, Mutlu Özcan, Monika Lukomska-Szymanska
    Clinical Oral Investigations.2024;[Epub]     CrossRef
  • 399 View
  • 15 Download
  • 4 Web of Science
  • 5 Crossref
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Case Report
The fate of overfilling in root canal treatments with long-term follow-up: a case series
Vito Antonio Malagnino, Alfio Pappalardo, Gianluca Plotino, Teocrito Carlesi
Restor Dent Endod 2021;46(2):e27.   Published online April 29, 2021
DOI: https://doi.org/10.5395/rde.2021.46.e27
AbstractAbstract PDFPubReaderePub

This study describes 6 cases of endodontic overfilling with successful clinical outcomes during long-term (up to 35 years) radiographic follow-up. Successful endodontic treatment depends on proper shaping, disinfection, and obturation of root canals. Filling materials should completely fill the root canal space without exceeding the anatomical apex. Overfilling may occur when the filling material extrudes into the periapical tissues beyond the apex. The present case series describes 6 root canal treatments in which overfilling of root canal sealer and gutta-percha accidentally occurred. Patients’ teeth were periodically checked with periapical radiographs in order to evaluate the outcomes during long-term follow-up. All cases showed healing and progressive resorption of the extruded materials in the periapex. The present cases showed that if a 3-dimensional seal was present at the apical level, overfilling did not negatively affect the long-term outcomes of root canal treatment.

Citations

Citations to this article as recorded by  
  • Comparative Analysis Of Obturation Techniques In Endodontics: Lateral Vs. Thermoplasticized. Thermoplasticized
    Juan Esteban Díaz Pacheco , Rómulo Guillermo López Torres , Verónica Alejandra Salame Ortíz
    Salud, Ciencia y Tecnología.2025; 5: 1626.     CrossRef
  • Comparison between AH plus sealer and total fill bioceramic sealer performance in previously untreated and retreatment cases of maxillary incisors with large-sized periapical lesion: a randomized controlled trial
    Eisa Wahbi, Hassan Achour, Yasser Alsayed Tolibah
    BDJ Open.2024;[Epub]     CrossRef
  • Comparison of Easydo Activator, ultrasonic and needle irrigation techniques on sealer penetration and smear layer removal in vitro
    Shao-Hui Zhang, Zheng-Rong Gao, Ying-Hui Zhou, Li Tan, Yao Feng, Qin Ye, Jie Zhao, Ya-Qiong Zhao, Jing Hu, Yun Chen, Qiong Liu, Dusenge Marie Aimee, Yue Guo, Yun-Zhi Feng
    BMC Oral Health.2024;[Epub]     CrossRef
  • The effectiveness of single antibiotic paste nitrofurantoin V/S double antibiotic paste in alleviation of post-operative pain of patients suffering from symptomatic irreversible pulpitis—A randomized controlled trial
    Hira Abbasi, Muhammad Saqib, Afsheen Maqsood, Rizwan Jouhar, Haroon Rashid, Naseer Ahmed, Mohmed Isaqali Karobari, Artak Heboyan
    SAGE Open Medicine.2024;[Epub]     CrossRef
  • Assessment of dental students’ knowledge and performance of master gutta-percha cone selection and fitting during root canal treatment: a pilot study
    Sarah M. Alkahtany, Shaima E. Alabdulkareem, Wajd H. Alharbi, Norah F. Alrebdi, Tomather Sultan Askar, Sundus M. Bukhary, Amal A. Almohaimede, Kholod Khalil Al-Manei
    BMC Medical Education.2024;[Epub]     CrossRef
  • Cytotoxicity and Bone Biocompatibility of the C‐Root SP Experimental Root Canal Sealer
    Xiliang Yang, Lingyun Xia, Yongji Chen, Lei Jiang, Tianxia Zheng, Yuhong Bai
    Australian Endodontic Journal.2024;[Epub]     CrossRef
  • Evaluación de lesiones apicales en dientes con obturación endodóntica a partir de tomografías computarizadas de haz cónico (CBCT), usando el índice periapical (PAI) modificado
    Didier Rodríguez-Lezama, Julián Camilo Mena-Falla, Luz Eugenia Duque-Gómez, Yolanda Grajales-Garay, Estephania Castro-Castaño
    Revista Facultad de Odontología.2024;[Epub]     CrossRef
  • A Review of the research methods and progress of biocompatibility evaluation of root canal sealers
    Xiliang Yang, Tianxia Zheng, Nuoya Yang, Zihan Yin, Wuliang Wang, Yuhong Bai
    Australian Endodontic Journal.2023; 49(S1): 508.     CrossRef
  • The Prevalence Of Cases With Apical Sealer Extrusion Published In Recent Articles Of The Endodontic Literature
    Ayman Abulhamael, Doo-Yong Lim, Kevin Chiang, Faisal Alghamdi, Rafael Roges
    Annals of Dental Specialty.2022; 10(1): 62.     CrossRef
  • The Assessment of Quality of the Root Canal Filling and the Number of Visits Needed for Completing Primary Root Canal Treatment by Operators with Different Experience
    Krystyna Pietrzycka, Mateusz Radwanski, Louis Hardan, Rim Bourgi, Davide Mancino, Youssef Haikel, Monika Lukomska-Szymanska
    Bioengineering.2022; 9(9): 468.     CrossRef
  • 584 View
  • 32 Download
  • 8 Web of Science
  • 10 Crossref
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Research Articles
The effect of different confluence confirmation strategies on the obturation of Vertucci type II canal: micro-CT analysis
Seungjae Do, Min-Seock Seo
Restor Dent Endod 2021;46(1):e12.   Published online January 26, 2021
DOI: https://doi.org/10.5395/rde.2021.46.e12
AbstractAbstract PDFPubReaderePub
Objectives

The present study aims to compare the obturation quality of 2 confluence confirmation techniques in artificial maxillary first premolars showing Vertucci type II root canal configuration.

Materials and Methods

Thirty artificial maxillary premolars having Vertucci type II root canal configuration were made. They were divided into 3 groups according to the confluence confirmation technique as follows. Gutta-percha indentation (GPI) group (confluence confirmation using a gutta-percha cone and a K file); electronic apex locator (EAL) group (confluence confirmation using K files and EAL); and no confluence detection (NCD) group. In the GPI group and the EAL group, shaping and obturation were performed with the modified working length (WL). In the NCD group, shaping was performed without WL adjustment and obturation was carried out with an adjusted master cone. Micro-computed tomography was used before preparation and after obturation to calculate the percentage of gutta-percha occupied volume (%GPv) and the volume increase in the apical 4 mm. Data were analyzed using 1-way analysis of variance and post hoc Tukey's test.

Results

Statistically significant difference was not found in terms of the %GPv from the apex to apical 4 mm. However, the NCD group showed a statistically significant volume increase compared with the EAL group (p < 0.05).

Conclusions

In terms of gutta-percha occupied volume, no significant difference was observed among the 3 groups. Confluence confirmation using an EAL in teeth with Vertucci type II configuration showed less volume increase during canal shaping compared with no confluence confirmation.

Citations

Citations to this article as recorded by  
  • Can the addition of surfactants to NaOCl irrigation impact on the percentage of voids of root canal filling?
    Laise Pena Braga Monteiro, Marcella Yasmin Reis Guerreiro, Felipe Gonçalves Belladonna, Carolina Oliveira de Lima, Emmanuel João Nogueira Leal da Silva, Juliana Melo da Silva Brandão
    Australian Endodontic Journal.2024; 50(2): 260.     CrossRef
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  • 13 Download
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Micro-computed tomographic evaluation of a new system for root canal filling using calcium silicate-based root canal sealers
Mario Tanomaru-Filho, Fernanda Ferrari Esteves Torres, Jader Camilo Pinto, Airton Oliveira Santos-Junior, Karina Ines Medina Carita Tavares, Juliane Maria Guerreiro-Tanomaru
Restor Dent Endod 2020;45(3):e34.   Published online June 9, 2020
DOI: https://doi.org/10.5395/rde.2020.45.e34
AbstractAbstract PDFPubReaderePub
Objectives

This study evaluated by using micro-computed tomography (micro-CT) the filling ability and sealer apical extrusion promoted by a new Sealer Injection System (SIS; Angelus) with side openings needle, in comparison with the conventional injection system, associated with a new ready-to-use calcium silicate-based sealer (Bio-C Sealer).

Materials and Methods

Acrylic resin models containing a main curved artificial canal and 3 simulated lateral canals in apical, middle and cervical thirds were used. The main root canals were prepared using a rotary system up to size 35.05. The canals were filled with Bio-C sealer by using a single cone technique and the conventional delivery system or SIS. Samples were scanned in micro-CT. The percentage of voids throughout the entire extension of the main root canal and in each third of the lateral canals, besides the apical extrusion of the sealer was calculated. Data were submitted to t-test (p < 0.05).

Results

There was no difference between both systems in the main root canals filling. Although the volume percentage of voids was similar in the apical and middle thirds of lateral canals, SIS had the greatest filling ability of the cervical third lateral canal. Moreover, the conventional system showed the highest apical extrusion of the sealer.

Conclusions

The conventional and SIS obturation systems had an appropriate filling ability of the main root canal. SIS had the best filling of the cervical third of the lateral canals, besides lower sealer apical extrusion, suggesting its clinical indication.

Citations

Citations to this article as recorded by  
  • Remineralizing capacity of zinc oxide eugenol sealer following the addition of nanohydroxyapatite-tyrosine amino acid: An in vivo animal study
    Rasha M. Al-Shamaa, Raghad A. Al-Askary
    Journal of Oral Biosciences.2025; 67(1): 100567.     CrossRef
  • Tissues response and bone-forming capacity of zinc oxide–eugenol sealer following the addition of nanohydroxyapatite-tyrosine amino acid: An in vivo animal study
    Rasha M. Al-Shamaa, Raghad A. Al-Askary
    Saudi Endodontic Journal.2024; 14(3): 322.     CrossRef
  • Filling ability of ready-to-use or powder-liquid calcium silicate-based sealers after ultrasonic agitation
    Mário Tanomaru-Filho, Maíra Bonassi Lucchesi, Airton Oliveira Santos-Junior, Karina Ines Medina Carita Tavares, Jáder Camilo Pinto, Juliane Maria Guerreiro-Tanomaru
    Brazilian Dental Journal.2024;[Epub]     CrossRef
  • Assessment the bioactivity of zinc oxid eugenol sealer after the addition of different concentrations of nano hydroxyapatite-tyrosine amino acid
    Rasha M. Al-Shamaa, Raghad A. Al-Askary
    Brazilian Journal of Oral Sciences.2024; 23: e243733.     CrossRef
  • Comparative evaluation of dentinal tubule penetration and push-out bond strength of new injectable hydraulic calcium disilicate based root canal sealer: A single blinded in vitro study
    Aman Verma, Anshul Arora, Sonali Taneja
    Journal of Oral Biology and Craniofacial Research.2024; 14(2): 143.     CrossRef
  • A critical analysis of research methods and experimental models to study root canal fillings
    Gustavo De‐Deus, Erick Miranda Souza, Emmanuel João Nogueira Leal Silva, Felipe Gonçalves Belladonna, Marco Simões‐Carvalho, Daniele Moreira Cavalcante, Marco Aurélio Versiani
    International Endodontic Journal.2022; 55(S2): 384.     CrossRef
  • Micro-computed tomography in preventive and restorative dental research: A review
    Mehrsima Ghavami-Lahiji, Reza Tayefeh Davalloo, Gelareh Tajziehchi, Paria Shams
    Imaging Science in Dentistry.2021; 51(4): 341.     CrossRef
  • Contribution of XP‐Endo files to the root canal filling removal: A systematic review and meta‐analysis ofin vitrostudies
    Emel Uzunoglu‐Özyürek, Selen Küçükkaya Eren, Sevilay Karahan
    Australian Endodontic Journal.2021; 47(3): 703.     CrossRef
  • Micro‐CT evaluation of filling of flattened root canals using a new premixed ready‐to‐use calcium silicate sealer by single‐cone technique
    Karina I. M. C. Tavares, Jáder C. Pinto, Airton O. Santos‐Junior, Fernanda F. E. Torres, Juliane M. Guerreiro‐Tanomaru, Mário Tanomaru‐Filho
    Microscopy Research and Technique.2021; 84(5): 976.     CrossRef
  • Development of A Nano-Apatite Based Composite Sealer for Endodontic Root Canal Filling
    Angelica Bertacci, Daniele Moro, Gianfranco Ulian, Giovanni Valdrè
    Journal of Composites Science.2021; 5(1): 30.     CrossRef
  • 225 View
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A micro-computed tomographic study of remaining filling materials of two bioceramic sealers and epoxy resin sealer after retreatment
KyungJae Kim, Da Vin Kim, Sin-Young Kim, SungEun Yang
Restor Dent Endod 2019;44(2):e18.   Published online April 26, 2019
DOI: https://doi.org/10.5395/rde.2019.44.e18
AbstractAbstract PDFPubReaderePub
Objective

This study evaluated the presence of residual root canal filling material after retreatment using micro-computed tomography (micro-CT).

Materials and Methods

Extracted human teeth (single- and double-rooted, n = 21/each; C-shaped, n = 15) were prepared with ProFile and randomly assigned to three subgroups for obturation with gutta-percha and three different sealers (EndoSeal MTA, EndoSequence BC sealer, and AH Plus). After 10 days, the filling material was removed and the root canals were instrumented one size up from the previous master apical file size. The teeth were scanned using micro-CT before and after retreatment. The percentage of remaining filling material after retreatment was calculated at the coronal, middle, and apical thirds. Data were analyzed using the Kruskal-Wallis test and Mann-Whitney U test with Bonferroni post hoc correction.

Results

The tested sealers showed no significant differences in the percentage of remaining filling material in single- and double-rooted teeth, although EndoSeal MTA showed the highest value in C-shaped roots (p < 0.05). The percentage of remaining filling material of AH Plus and EndoSeal MTA was significantly higher in C-shaped roots than in single- or double-roots (p < 0.05), while that of BC sealer was similar across all root types. EndoSeal MTA showed the highest values at the apical thirds of single- and double-roots (p < 0.05); otherwise, no significant differences were observed among the coronal, middle, and apical thirds.

Conclusions

Within the limitations of this study, a large amount of EndoSeal MTA remained after retreatment, especially in C-shaped root canals.

Citations

Citations to this article as recorded by  
  • Root canal cleanliness and debris extrusion following retreatment of thermoplastic injection technique and bioceramic-based root canal sealer
    Deniz Bender, Mert Ocak, Emel Uzunoğlu Özyürek
    Clinical Oral Investigations.2024;[Epub]     CrossRef
  • The Effect of Different Obturation Techniques Using Different Root Canal Sealers on the Residual Filling Material After Retreatment Procedures
    M Sarı, K Yılmaz
    Nigerian Journal of Clinical Practice.2024; 27(2): 174.     CrossRef
  • Effect of Different Obturation Techniques on the Amount of Debris Extrusion During Endodontic Retreatment Using XP Endo Retreatment Set Files (In vitro Study)
    Pawan Amin, Hawzhen Saeed
    Sulaimani Dental Journal.2023; 10(3): 9.     CrossRef
  • The efficiency of different irrigation activation techniques in the removal of calcium silicate‐based endodontic sealer from artificially created groove
    Meltem Sümbüllü, Afzal Ali, Mine Büker, Hakan Arslan
    Australian Endodontic Journal.2023; 49(S1): 238.     CrossRef
  • Efficiency of diode laser and ultrasonic‐activated irrigation in retreatment of gutta percha and bioceramic sealer: An in vitro study
    Rahaf A. Almohareb, Reem M. Barakat, Noor Aljarallah, Halah Mudhish, Amjaad Almutairi, Fahda N. Algahtani
    Australian Endodontic Journal.2023; 49(2): 318.     CrossRef
  • Efficiency of the new reciprocating and rotary systems with or without ultrasonics in removing root-canals filling with calcium silicate-based sealer (MTA)
    Ahmad A. Madarati, Aya M. N. Sammani, Ahmad A. Alnazzawi, Ali Alrahlah
    BMC Oral Health.2023;[Epub]     CrossRef
  • Retreatability of calcium silicate‐based root canal sealer using reciprocating instrumentation with different irrigation activation techniques in single‐rooted canals
    Daniele Angerame, Matteo De Biasi, Davide Porrelli, Lorenzo Bevilacqua, Riccardo Zanin, Matteo Olivi, Vassilios Kaitsas, Giovanni Olivi
    Australian Endodontic Journal.2022; 48(3): 415.     CrossRef
  • Critical analysis of research methods and experimental models to study removal of root filling materials
    Mahdi A. Ajina, Pratik K. Shah, Bun San Chong
    International Endodontic Journal.2022; 55(S1): 119.     CrossRef
  • An Updated Review on Properties and Indications of Calcium Silicate-Based Cements in Endodontic Therapy
    Fateme Eskandari, Alireza Razavian, Rozhina Hamidi, Khadije Yousefi, Susan Borzou, Zohaib Khurshid
    International Journal of Dentistry.2022; 2022: 1.     CrossRef
  • How do imaging protocols affect the assessment of root-end fillings?
    Fernanda Ferrari Esteves Torres, Reinhilde Jacobs, Mostafa EzEldeen, Karla de Faria-Vasconcelos, Juliane Maria Guerreiro-Tanomaru, Bernardo Camargo dos Santos, Mário Tanomaru-Filho
    Restorative Dentistry & Endodontics.2022;[Epub]     CrossRef
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    Gabrijela Kapetanović Petričević, Marko Katić, Valentina Brzović Rajić, Ivica Anić, Ivona Bago
    Bioengineering.2022; 9(12): 820.     CrossRef
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    Sumit Sharma, Ramya Raghu, Ashish Shetty, Subhashini Rajasekhara, Harika Lakshmisetty, G. Bharath
    Endodontology.2022; 34(3): 173.     CrossRef
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  • Micro-computed tomographic evaluation of a new system for root canal filling using calcium silicate-based root canal sealers
    Mario Tanomaru-Filho, Fernanda Ferrari Esteves Torres, Jader Camilo Pinto, Airton Oliveira Santos-Junior, Karina Ines Medina Carita Tavares, Juliane Maria Guerreiro-Tanomaru
    Restorative Dentistry & Endodontics.2020;[Epub]     CrossRef
  • Micro-computed tomographic evaluation of the flow and filling ability of endodontic materials using different test models
    Fernanda Ferrari Esteves Torres, Juliane Maria Guerreiro-Tanomaru, Gisselle Moraima Chavez-Andrade, Jader Camilo Pinto, Fábio Luiz Camargo Villela Berbert, Mario Tanomaru-Filho
    Restorative Dentistry & Endodontics.2020;[Epub]     CrossRef
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    M. Garrib, J. Camilleri
    Journal of Dentistry.2020; 98: 103370.     CrossRef
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Bacterial leakage and micro-computed tomography evaluation in round-shaped canals obturated with bioceramic cone and sealer using matched single cone technique
Kallaya Yanpiset, Danuchit Banomyong, Kanet Chotvorrarak, Ratchapin Laovanitch Srisatjaluk
Restor Dent Endod 2018;43(3):e30.   Published online July 5, 2018
DOI: https://doi.org/10.5395/rde.2018.43.e30
AbstractAbstract PDFPubReaderePub
Objectives

To evaluate sealing ability of root canals obturated with bioceramic-impregnated gutta percha cone (BCC) or gutta percha (GP), with bioceramic sealer (BCS) or AH Plus (AH; Dentsply-Maillefer), in roundly-prepared canals using matched single-cone technique, based on bacterial leakage test, and to analyze obturation quality using micro-computed tomography (CT) analysis.

Materials and Methods

Ninety-two distobuccal roots of maxillary molars were prepared using nickel-titanium files to apical size 40/0.06. The roots were divided into 4 groups (n = 20) that were obturated with a master cone and sealer: GP/AH, BCC/AH, GP/BCS, and BCC/BCS. Bacterial leakage model using Enterococcus faecalis was used to evaluate sealing ability for 60-day period. Obturated samples from each group (n = 4) were analyzed using micro-CT.

Results

All groups showed bacterial leakage at 20%–45% of samples with mean leakage times of 42–52 days. There were no significant differences in bacterial leakage among the groups. Micro-CT showed minimal gaps and voids in all groups at less than 1%.

Conclusions

In roundly-prepared canals, the single cone obturation with BCC/BCS was comparable to GP/AH for bacterial leakage at 60 days.

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    Tanvi S Agrawal, Shishir Singh, Rajesh S Podar, Gaurav Kulkarni, Anuprita Gadkari, Navin Agarwal
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    Rasha M. Al-Shamaa, Raghad A. Al-Askary
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    Doaa M. AlEraky, Ahmed M. Rahoma, Hatem M. Abuohashish, Abdullh AlQasser, Abbas AlHamali, Hussain M. AlHussain, Hussain M. AlShoalah, Zakrya AlSaghah, Abdulrahman Khattar, Shimaa Rifaat
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    Gustavo De‐Deus, Gustavo O. Santos, Iara Zamboni Monteiro, Daniele M. Cavalcante, Marco Simões‐Carvalho, Felipe G. Belladonna, Emmanuel J. N. L. Silva, Erick M. Souza, Raphael Licha, Carla Zogheib, Marco A. Versiani
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    Shalan Kaul, Ajay Kumar, Bhumika Kamal Badiyani, Laxmi Sukhtankar, M. Madhumitha, Amit Kumar
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    L Somolová, Z Zapletalová, M Rosa, B Novotná, I Voborná, Y Morozova
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    Germain Sfeir, Carla Zogheib, Shanon Patel, Thomas Giraud, Venkateshbabu Nagendrababu, Frédéric Bukiet
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    Viresh Chopra, Graham Davis, Aylin Baysan
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    Pragya Pandey, Himanshi Aggarwal, A.P. Tikku, Arpit Singh, Rhythm Bains, Shambhavi Mishra
    Journal of Oral Biology and Craniofacial Research.2020; 10(2): 220.     CrossRef
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    Fernanda Ferrari Esteves Torres, Juliane Maria Guerreiro-Tanomaru, Gisselle Moraima Chavez-Andrade, Jader Camilo Pinto, Fábio Luiz Camargo Villela Berbert, Mario Tanomaru-Filho
    Restorative Dentistry & Endodontics.2020;[Epub]     CrossRef
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    Eugenio Pedullà, Roula S. Abiad, Gianluca Conte, Giusy R. M. La Rosa, Ernesto Rapisarda, Prasanna Neelakantan
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Effect of ultrasonic agitation on push-out bond strength and adaptation of root-end filling materials
Murilo Priori Alcalde, Rodrigo Ricci Vivan, Marina Angélica Marciano, Jussaro Alves Duque, Samuel Lucas Fernandes, Mariana Bailo Rosseto, Marco Antonio Hungaro Duarte
Restor Dent Endod 2018;43(2):e23.   Published online April 27, 2018
DOI: https://doi.org/10.5395/rde.2018.43.e23
AbstractAbstract PDFPubReaderePub
Objectives

This study evaluated the effect of ultrasonic agitation of mineral trioxide aggregate (MTA), calcium silicate-based cement (CSC), and Sealer 26 (S26) on adaptation at the cement/dentin interface and push-out bond strength.

Materials and Methods

Sixty maxillary canines were divided into 6 groups (n = 10): MTA, S26, and CSC, with or without ultrasonic activation (US). After obturation, the apical portions of the teeth were sectioned, and retrograde cavities were prepared and filled with cement by hand condensation. In the US groups, the cement was activated for 60 seconds: 30 seconds in the mesio-distal direction and 30 seconds in the buccal-lingual direction, using a mini Irrisonic insert coupled with the ultrasound transducer. After the materials set, 1.5-mm thick sections were obtained from the apexes. The presence of gaps and the bond between cement and dentin were analyzed using low-vacuum scanning electron microscopy. Push-out bond strength was measured using a universal testing machine.

Results

Ultrasonic agitation increased the interfacial adaptation of the cements. The S26 US group showed a higher adaptation value than MTA (p < 0.05). US improved the push-out bond strength for all the cements (p < 0.05).

Conclusions

The US of retrograde filling cements enhanced the bond to the dentin wall of the root-end filling materials tested.

Citations

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    Simone Argenta Scalabrin, Lina Naomi Hashizume, Theodoro Weissheimer, Gabriel Barcelos Só, Jefferson Ricardo Pereira, Milton Carlos Kuga, Ricardo Abreu da Rosa, Marcus Vinicius Reis Só
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    Pedro Henrique Fiorin de Souza, Airton Oliveira Santos-Junior, Jáder Camilo Pinto, Karina Ines Medina Carita Tavares, Juliane Maria Guerreiro-Tanomaru, Mário Tanomaru-Filho
    Brazilian Dental Journal.2023; 34(5): 29.     CrossRef
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    Amin Salem Milani, Faraz Radmand, Behrad Rahbani, Mahdi Hadilou, Farnaz Haji Abbas Oghli, Fatemeh Salehnia, Milad Baseri, Stefano Pagano
    International Journal of Dentistry.2023; 2023: 1.     CrossRef
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    Berkan Celikten, Aysenur Oncu, Mehrdad Koohnavard, Mert Ocak, Kaan Orhan
    Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine.2022; 236(8): 1209.     CrossRef
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    Isabel Verdum, Igor Abreu de Bem, Pedro Henrique Marks Duarte, Lucas Silveira Machado, Jefferson Ricardo Pereira, Marcus Vinícius Reis Só, Ricardo Abreu da Rosa
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    Fredson Márcio Acris De Carvalho, Yara Teresinha Corrêa Silva-Sousa, Carlos Eduardo Saraiva Miranda, Paulo Henrique Miller Calderon, Ana Flávia Simões Barbosa, Luciana Martins Domingues De Macedo, Fuad Jacob Abi Rached-Junior, Boonlert Kukiattrakoon
    International Journal of Dentistry.2021; 2021: 1.     CrossRef
  • Micro-computed tomographic evaluation of the flow and filling ability of endodontic materials using different test models
    Fernanda Ferrari Esteves Torres, Juliane Maria Guerreiro-Tanomaru, Gisselle Moraima Chavez-Andrade, Jader Camilo Pinto, Fábio Luiz Camargo Villela Berbert, Mario Tanomaru-Filho
    Restorative Dentistry & Endodontics.2020;[Epub]     CrossRef
  • Dental discoloration caused by Grey-MTAFlow cement: analysis of its physicochemical, biological and antimicrobial properties
    Lauter Eston PELEPENKO, Flávia SAAVEDRA, Gabriela Fernanda BOMBARDA, Brenda Paula Figueiredo de Almeida GOMES, Adriana DE-JESUS-SOARES, Alexandre Augusto ZAIA, Marco Antonio Hungaro DUARTE, Mario TANOMARU-FILHO, Marina Angélica MARCIANO
    Journal of Applied Oral Science.2020;[Epub]     CrossRef
  • Effect of Ultrasonic Activation of Endodontic Sealers on Intratubular Penetration and Bond Strength to Root Dentin
    Igor Abreu De Bem, Renata Aqel de Oliveira, Theodoro Weissheimer, Carlos Alexandre Souza Bier, Marcus Vinícius Reis Só, Ricardo Abreu da Rosa
    Journal of Endodontics.2020; 46(9): 1302.     CrossRef
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Quantification of the tug-back by measuring the pulling force and micro computed tomographic evaluation
Su-Jin Jeon, Young-Mi Moon, Min-Seock Seo
Restor Dent Endod 2017;42(4):273-281.   Published online September 4, 2017
DOI: https://doi.org/10.5395/rde.2017.42.4.273
AbstractAbstract PDFPubReaderePub
Objectives

The aims of this study were to quantify tug-back by measuring the pulling force and investigate the correlation of clinical tug-back pulling force with in vitro gutta-percha (GP) cone adaptation score using micro-computed tomography (µCT).

Materials and Methods

Twenty-eight roots from human single-rooted teeth were divided into 2 groups. In the ProTaper Next (PTN) group, root canals were prepared with PTN, and in the ProFile (PF) group, root canals were prepared using PF (n = 14). The degree of tug-back was scored after selecting taper-matched GP cones. A novel method using a spring balance was designed to quantify the tug-back by measuring the pulling force. The correlation between tug-back scores, pulling force, and percentage of the gutta-percha occupied area (pGPOA) within apical 3 mm was investigated using µCT. The data were analyzed using Pearson's correlation analysis, one-way analysis of variance (ANOVA) and Tukey's test.

Results

Specimens with a strong tug-back had a mean pulling force of 1.24 N (range, 0.15–1.70 N). This study showed a positive correlation between tug-back score, pulling force, and pGPOA. However, there was no significant difference in these factors between the PTN and PF groups. Regardless of the groups, pGPOA and pulling force were significantly higher in the specimens with a higher tug-back score (p < 0.05).

Conclusions

The degree of subjective tug-back was a definitive determinant for master cone adaptation in the root canal. The use of the tug-back scoring system and pulling force allows the interpretation of subjective tug-back in a more objective and quantitative manner.

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Quality of root canal fillings using three gutta-percha obturation techniques
Edith Siu Shan Ho, Jeffrey Wen Wei Chang, Gary Shun Pan Cheung
Restor Dent Endod 2016;41(1):22-28.   Published online January 4, 2016
DOI: https://doi.org/10.5395/rde.2016.41.1.22
AbstractAbstract PDFPubReaderePub
Objectives

The goal of this study was to compare the density of gutta-percha root fillings obturated with the following techniques: cold lateral (CL) compaction, ultrasonic lateral (UL) compaction, and warm vertical (WV) compaction.

Materials and Methods

Thirty-three extracted mandibular first molars, with two separate mesial canals in each, were selected. After instrumentation, the canals were stratified into three groups based on canal length and curvature, and underwent obturation with one of the techniques. No sealer was used in order to avoid masking any voids. The teeth were imaged pre- and post-obturation using micro-computed tomography. The reconstructed three-dimensional images were analyzed volumetrically to determine the amount of gutta-percha present in every 2 mm segment of the canal. P values < 0.05 were considered to indicate statistical significance.

Results

The overall mean volume fraction of gutta-percha was 68.51 ± 6.75% for CL, 86.56 ± 5.00% for UL, and 88.91 ± 5.16% for WV. Significant differences were found between CL and UL and between CL and WV (p < 0.05), but not between UL and WV (p = 0.526). The gutta-percha density of the roots treated with WV and UL increased towards the coronal aspect, but this trend was not noted in the CL group.

Conclusions

WV compaction and UL compaction produced a significantly denser gutta-percha root filling than CL compaction. The density of gutta-percha was observed to increase towards the coronal aspect when the former two techniques were used.

Citations

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    Fernanda Clotilde M. Suassuna, Débora Ketley M. de Araújo, Ana Marly A. M. Amorim, Saulo Leonardo S. Melo, Richard J. Heck, Antonio Celso D. Antonino, Patrícia M. Bento, Diego Filipe B. Silva, Daniela P. de Melo
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    Daniel Feijolo Marconi, Giovana Siocheta da Silva, Theodoro Weissheimer, Isadora Ames Silva, Gabriel Barcelos Só, Leonardo Thomasi Jahnke, Jovito Adiel Skupien, Marcus Vinicius Reis Só, Ricardo Abreu da Rosa
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    SusMat.2022; 2(1): 2.     CrossRef
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    Riccardo Tonini, Matteo Salvadori, Marco Bartoli, Jacopo Francinelli, Paolo Bertoletti, Maria Luisa Garo, Stefano Salgarello
    Applied Sciences.2022; 12(17): 8877.     CrossRef
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    Gustavo De‐Deus, Erick Miranda Souza, Emmanuel João Nogueira Leal Silva, Felipe Gonçalves Belladonna, Marco Simões‐Carvalho, Daniele Moreira Cavalcante, Marco Aurélio Versiani
    International Endodontic Journal.2022; 55(S2): 384.     CrossRef
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    He Yuanli, Wu Juan, Ji Mengzhen, Chen Xuan, Xiong Kaixin, Yang Xueqin, Qiao Xin, Hu Hantao, Gao Yuan, Zou Ling
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    Shilpa Bhandi, Mohammed Mashyakhy, Abdulaziz S. Abumelha, Mazen F. Alkahtany, Mohamed Jamal, Hitesh Chohan, A. Thirumal Raj, Luca Testarelli, Rodolfo Reda, Shankargouda Patil
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    Rafael Nigri Roizenblit, Fabiola Ormiga Soares, Ricardo Tadeu Lopes, Bernardo Camargo dos Santos, Heloisa Gusman
    Australian Endodontic Journal.2020; 46(1): 82.     CrossRef
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    NawalA Al-Sabawi, MahaM Yahya, NjwanF Shehab
    Journal of International Oral Health.2020; 12(5): 455.     CrossRef
  • Micro-computed tomographic evaluation of a new system for root canal filling using calcium silicate-based root canal sealers
    Mario Tanomaru-Filho, Fernanda Ferrari Esteves Torres, Jader Camilo Pinto, Airton Oliveira Santos-Junior, Karina Ines Medina Carita Tavares, Juliane Maria Guerreiro-Tanomaru
    Restorative Dentistry & Endodontics.2020;[Epub]     CrossRef
  • Quantification of the tug-back by measuring the pulling force and micro computed tomographic evaluation
    Su-Jin Jeon, Young-Mi Moon, Min-Seock Seo
    Restorative Dentistry & Endodontics.2017; 42(4): 273.     CrossRef
  • 325 View
  • 3 Download
  • 18 Crossref
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Review Article
Thermal irritation of teeth during dental treatment procedures
Su-Jung Kwon, Yoon-Jung Park, Sang-Ho Jun, Jin-Soo Ahn, In-Bog Lee, Byeong-Hoon Cho, Ho-Hyun Son, Deog-Gyu Seo
Restor Dent Endod 2013;38(3):105-112.   Published online August 23, 2013
DOI: https://doi.org/10.5395/rde.2013.38.3.105
AbstractAbstract PDFPubReaderePub

While it is reasonably well known that certain dental procedures increase the temperature of the tooth's surface, of greater interest is their potential damaging effect on the pulp and tooth-supporting tissues. Previous studies have investigated the responses of the pulp, periodontal ligament, and alveolar bone to thermal irritation and the temperature at which thermal damage is initiated. There are also many in vitro studies that have measured the temperature increase of the pulp and tooth-supporting tissues during restorative and endodontic procedures. This review article provides an overview of studies measuring temperature increases in tooth structures during several restorative and endodontic procedures, and proposes clinical guidelines for reducing potential thermal hazards to the pulp and supporting tissues.

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Original Articles
The Effect of canal obturation according to the depth of the System B Plugger tip in the Type IV canal
Hee-Won Choi, Soo-Mee Kim, Ho-Keel Hwang
J Korean Acad Conserv Dent 2008;33(6):518-525.   Published online November 30, 2008
DOI: https://doi.org/10.5395/JKACD.2008.33.6.518
AbstractAbstract PDFPubReaderePub

The purpose of this study was to evaluate the effect of the apical sealing according to the depth of the System B Plugger tip when root canal was filled with gutta-percha and sealer by Continuous Wave of Condensation technique in the Type IV canal.

50 simulated resin blocks with J-shaped curvature canals were instrumented by ProTaper (Dentsply Maillefer, Ballagiues, Switzerland) Ni-Ti files using the crown-down technique. Type IV canals were made using a broken ProTaper F3 Ni-Ti file for making a ledge at 3mm short from the working length. And ProTaper F1 Ni-Ti file was used for perforating resin block.

The prepared Type IV canals were randomly divided into three experimental groups of 15 each according to the depth of System B Plugger tip.

All of experimental groups were obturated with Continuous Wave of Condensation technique. The length of gutta-percha and sealer in lingual of the Type IV canals was measured with a measuring digital calliper under magnifying glass (× 2.3).

The results are as follows :

In control group, there was no gutta-percha and sealer in lingual canal.

3 mm group showed relatively more gutta-percha than 5mm or 7 mm group (p<0.05).

7 mm group did not showed gutta-percha and relatively more void were observed than 3mm or 5 mm group. (p<0.05)

In conclusion, within the limits of the results of this experiment, the 3 mm depth of System B Plugger tip was acceptable for obturating the Type IV canal.

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Effect of irrigation methods on the adhesion of Resilon/Epiphany sealer and gutta-percha/AH 26 sealer to intracanal dentin
Seo-Kyong Kim, Yun-Chan Hwang, In-Nam Hwang, Won-Mann Oh
J Korean Acad Conserv Dent 2008;33(2):98-106.   Published online March 31, 2008
DOI: https://doi.org/10.5395/JKACD.2008.33.2.098
AbstractAbstract PDFPubReaderePub

The purpose of this study was to evaluate whether intracanal irrigation method could affect the adhesion between intracanal dentin and root canal filling materials (Gutta-percha/AH 26 sealer and Resilon/Epiphany sealer).

Thirty extracted human incisor teeth were prepared. Canals were irrigated with three different irrigation methods as a final rinse and obturated with two different canal filling materials (G groups : Gutta-percha/AH 26 sealer, R groups : Resilon/Epiphany sealer) respectively.

Group G1, R1 - irrigated with 5.25% NaOCl

Group G2, R2 - irrigated with 5.25% NaOCl, sterile saline

Group G3, R3 - irrigated with 5.25% NaOCl, 17% EDTA, sterile saline

Thirty obturated roots were horizontally sliced and push-out bond strength test was performed in the universal testing machine. After test, the failure patterns of the specimens were observed using Image-analyzing microscope.

The results were as follows.

Gutta-percha/AH 26 sealer groups had significantly higher push-out bond strength compared with the Resilon/Epiphany sealer groups (p < 0.05).

Push-out bond strength was higher when using 17% EDTA followed by sterile saline than using NaOCl as a final irrigation solution in the Resilon/Epiphany sealer groups (p < 0.05).

In the failure pattern analysis, there was no cohesive failure in Group G1, G2, and R1. Gutta-percha/AH 26 sealer groups appeared to exhibit predominantly adhesive and mixed failure patterns, whereas Resilon/Epiphany sealer groups exhibited mixed failures with the cohesive failure occurred within the Resilon substrate.

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Comparison of apical sealing efficacies using different plugging depth in continuous wave of obturation technique
Sang-Jin Lee, Jeong-Kil Park, Bock Hur, Hyeon-Cheol Kim
J Korean Acad Conserv Dent 2007;32(6):491-497.   Published online November 30, 2007
DOI: https://doi.org/10.5395/JKACD.2007.32.6.491
AbstractAbstract PDFPubReaderePub

The purpose of this study was to compare apical sealing ability of continuous wave canal filling technique according to various heat source plugging depths.

Eighty one extracted human premolars with straight root were cleaned and shaped to size 35 using .06 taper rotary NiTi file. After cleansing and shaping, the teeth were divided into 5 groups following the heat source probing depths from the apex; 3, 4, 5, 6 and 7 mm. All specimens were filled using E&Q plus with #35 / .06 tapered gutta-percha cone. The positive control teeth were not filled. All teeth were coated with nail varnish except the apical 1 mm around the apical foramen. Negative control teeth were completely sealed include the apical foramen. All specimens were immersed in 1% methylene blue solution for 72 hours. Then the specimens were sectioned horizontally at 1, 2 and 3 mm from the root apex. Each sectioned surface was photographed using a digital camera attached to the stereomicroscope at 12.5 × 2.5 fold magnification. All points at 1, 2 and 3 mm were summed as final score of one specimen. Statistical analysis of the collected data was performed.

Under the condition of this study, there was no significant difference between the heat source plugging depths of 3, 4, 5, 6 and 7 mm in apical sealing ability. All of apical heat source plugging depth from 3 to 7 mm including Buchanan's protocol -from 5 to 7 mm- seems to be acceptable in clinical application.

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Influence of plugger penetration depth on the area of the canal space occupied by gutta-percha
Young Mi Lee, Ho-young So, Young Kyung Kim, Sung Kyo Kim
J Korean Acad Conserv Dent 2006;31(1):66-71.   Published online January 31, 2006
DOI: https://doi.org/10.5395/JKACD.2006.31.1.066
AbstractAbstract PDFPubReaderePub

To evaluate the ratio of gutta-percha area in the canal after canal obturation with Continuous Wave of Condensation Technique (CWCT) with varying depths of plugger penetration, forty root canals of extracted human teeth were prepared up to size 40 of 0.06 taper with ProFile®. Canals of three groups were filled with CWCT with System B™ (Analytic Tech., USA) and different plugger penetration depths of 3, 5, or 7 mm from the apex. Canals of one group were filled with lateral condensation technique as a control. The filled teeth were cross-sectioned at 1, 2, and 3 mm levels from the apical foramen. The ratio of gutta-percha area in the canal was analyzed using Auto®Cad 2000. Data were analyzed with one-way ANOVA and Duncan's multiple range test.

At all levels, higher gutta-percha area ratio was found with deeper plugger penetration depth in CWCT, and cold lateral condensation group showed higher ratio than group of plugger penetration to apical 7 mm in CWCT.

At apical 1 mm and 2 mm levels, group of plugger penetration to apical 3 mm showed significantly higher gutta-percha area ratio than those of apical 7 mm and lateral condensation (p < 0.05).

It is concluded therefore that, under the conditions of the present study, deeper plugger penetration depth results in more favorable and efficient obturation in CWCT.

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Obturation efficiency of non-standardized gutta-percha cone in curved root canals prepared with 0.06 taper nickel-titanium instruments
Eun-Ah Lee, Sung-Kyo Kim
J Korean Acad Conserv Dent 2005;30(2):79-85.   Published online March 31, 2005
DOI: https://doi.org/10.5395/JKACD.2005.30.2.079
AbstractAbstract PDFPubReaderePub

The purpose of this study was to evaluate the obturation efficiency of a non-standardized gutta-percha cone in curved root canals prepared with 0.06 taper nickel-titanium instruments.

Sixty simulated curved root canals in clear resin blocks were prepared with crown-down technique using 0.06 taper rotary ProTaper™ and ProFile (Dentsply-Maillefer) until apical canal was size 30. Root canals were randomly divided into 4 groups of 15 blocks and obturated with cold-laterally compacted gutta-percha technique by using either a non-standardized size medium gutta-percha cone or an ISO-standardized size 30 one as a master cone. Gutta-percha area ratio were calculated at apical levels of 1, 3, and 5 mm using AutoCAD 2000 after cross-sectioning, and the data were analyzed with one-way and two-way ANOVAs and Duncan's multiple range test.

Non-standardized size medium cone groups showed significantly higher gutta-percha area ratio than standardized cone groups at all apical levels (p < 0.01).

Non-standardized cone groups used significantly less accessory cones than standardized cone groups (p < 0.01).

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  • Efficiency of Using Different Greater Taper Gutta-Percha Cones in Continuous Warm Vertical Condensation: An Ex Vivo Study
    Mamata Hebbal, Reem Barakat, Rahaf Almohareb, Ghada Alaskar, Lama Alghufaily, Nouf AlFarraj, Alia Albaz
    The Journal of Contemporary Dental Practice.2021; 22(1): 56.     CrossRef
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COMPARISON OF APICAL SEAL WITH OR WITHOUT THE USE OF DENTIN ADHESIVE SYSTEM
Min-Jo Lee, Sang-Hyuk Park, Gi-Woon Choi
J Korean Acad Conserv Dent 2005;30(1):7-15.   Published online January 14, 2005
DOI: https://doi.org/10.5395/JKACD.2005.30.1.007
AbstractAbstract PDFPubReaderePub
ABSTRACT

The purpose of this study was to compare the sealing ability of root canal obturation with or without the use of dentin adhesive system. Forty extracted human teeth with one canal were selected and decoronated. The teeth were divided into two Groups. The obturation procedure of Group 1 was the same as that of Group 2 with the exception of dentin adhesive system. Group 2 were obturated with dentin adhesive system, AH-26, and gutta-percha.

After obturation, the teeth were immersed in methylene blue solution for 84 hours. The teeth were sectioned horizontally at 1.5 mm (Level 1), 2.0 mm (Level 2), 2.5 mm (Level 3) from the root apex using a low speed microtome. Distance of dye-penetrated surface and total dentinal surface were measured using SigmaScan Pro 5.0, and the ratio of dye-penetrated distance to the total dentinal distance was analyzed statistically by Mann-Whitney U-test.

In both groups, the mean leakage ratio was decreased cervically.

At level 1, there was no significant difference between group 1 and grpup 2 (p > 0.05).

At level 2 and 3, group 1 showed significantly higher mean leakage ratio than group 2 (p < 0.05). The results suggest that using dentin adhesive system in root canal obturation procedure reduces the apical microleakage.

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  • Effect of Application over Time for Each Type of Blending Tea on Bovine Tooth Coloration
    Se-Won Bae, Im-Hee Jung, Min-Ha Hong, Eun-Jin Kwon, Ji-Hyeon Kim, Ji-Hyeon Lee, Hee-Jung Lim, Do-Seon Lim
    Journal of Dental Hygiene Science.2022; 22(1): 57.     CrossRef
  • Microleakage of resilon: Effects of several self-etching primer
    Jong-Hyeon O, Se-Hee Park, Hye-Jin Shin, Kyung-Mo Cho, Jin-Woo Kim
    Journal of Korean Academy of Conservative Dentistry.2008; 33(2): 133.     CrossRef
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