Restorative Dentistry & Endodontics

Volume 41 (1); February 2016

Research Articles

Comparison of canal transportation in simulated curved canals prepared with ProTaper Universal and ProTaper Gold systems: Emmanuel João Nogueira Leal Silva, Brenda Leite Muniz, Frederico Pires, Felipe Gonçalves Belladonna, Aline Almeida Neves, Erick Miranda Souza, Gustavo De-Deus; Restor Dent Endod 2016;41(1):1-5. Published online February 4, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.1

Objectives

The purpose of this study was to assess the ability of ProTaper Gold (PTG, Dentsply Maillefer) in maintaining the original profile of root canal anatomy. For that, ProTaper Universal (PTU, Dentsply Maillefer) was used as reference techniques for comparison.

Materials and Methods

Twenty simulated curved canals manufactured in clear resin blocks were randomly assigned to 2 groups (n = 10) according to the system used for canal instrumentation: PTU and PTG groups, upto F2 files (25/0.08). Color stereomicroscopic images from each block were taken exactly at the same position before and after instrumentation. All image processing and data analysis were performed with an open source program (FIJI). Evaluation of canal transportation was obtained for two independent canal regions: straight and curved levels. Student's t test was used with a cut-off for significance set at α = 5%.

Results

Instrumentation systems significantly influenced canal transportation (p < 0.0001). A significant interaction between instrumentation system and root canal level (p < 0.0001) was found. PTU and PTG systems produced similar canal transportation at the straight part, while PTG system resulted in lower canal transportation than PTU system at the curved part. Canal transportation was higher at the curved canal portion (p < 0.0001).

Conclusions

PTG system produced overall less canal transportation in the curved portion when compared to PTU system.

Citations

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Shaping, and disinfecting abilities of ProTaper Universal, ProTaper Gold, and Twisted Files: A correlative microcomputed tomographic and bacteriologic analysis
Malavika Sivakumar, Ruchika Roongta Nawal, Sangeeta Talwar, CP Baveja, Rega Kumar, Sudha Yadav, S Santosh Kumar
Endodontology.2023; 35(1): 54. CrossRef
Advancing Nitinol: From heat treatment to surface functionalization for nickel–titanium (NiTi) instruments in endodontics
Wai-Sze Chan, Karan Gulati, Ove A. Peters
Bioactive Materials.2023; 22: 91. CrossRef
Comparative Evaluation of Root Canal Centering Ability of Two Heat-treated Single-shaping NiTi Rotary Instruments in Simulated Curved Canals: An In Vitro Study
Preethi Varadan, Chakravarthy Arumugam, Athira Shaji, R R Mathan
World Journal of Dentistry.2023; 14(6): 535. CrossRef
An Appraisal on Newer Endodontic File Systems: A Narrative Review
Shalini Singh, Kailash Attur, Anjali Oak, Mohammed Mustafa, Kamal Kumar Bagda, Nishtha Kathiria
The Journal of Contemporary Dental Practice.2023; 23(9): 944. CrossRef
Shaping ability of modern Nickel–Titanium rotary systems on the preparation of printed mandibular molars
Seda Falakaloglu, Emmanuel Silva, Burcu Topal, Emre İriboz, Mustafa Gündoğar
Journal of Conservative Dentistry.2022; 25(5): 498. CrossRef
An Investigation of the Accuracy and Reproducibility of 3D Printed Transparent Endodontic Blocks
Martin Smutný, Martin Kopeček, Aleš Bezrouk
Acta Medica (Hradec Kralove, Czech Republic).2022; 65(2): 59. CrossRef
Nitinol Type Alloys General Characteristics and Applications in Endodontics
Leszek A. Dobrzański, Lech B. Dobrzański, Anna D. Dobrzańska-Danikiewicz, Joanna Dobrzańska
Processes.2022; 10(1): 101. CrossRef
Impact of Endodontic Kinematics on Stress Distribution During Root Canal Treatment: Analysis of Photoelastic Stress
Shelyn Akari Yamakami, Julia Adornes Gallas, Igor Bassi Ferreira Petean, Aline Evangelista Souza-Gabriel, Manoel Sousa-Neto, Ana Paula Macedo, Regina Guenka Palma-Dibb
Journal of Endodontics.2022; 48(2): 255. CrossRef
Shaping ability of ProTaper Gold and WaveOne Gold nickel-titanium rotary instruments in simulated S-shaped root canals
Lu Shi, Junling Zhou, Jie Wan, Yunfei Yang
Journal of Dental Sciences.2022; 17(1): 430. CrossRef
A Comparative Study of Two Martensitic Alloy Systems in Endodontic Files Carried out by Unskilled Hands
Juan Algar, Alejandra Loring-Castillo, Ruth Pérez-Alfayate, Carmen Martín Carreras-Presas, Ana Suárez
Applied Sciences.2022; 12(12): 6289. CrossRef
Quantitative evaluation of apically extruded debris using TRUShape, TruNatomy, and WaveOne Gold in curved canals
Nehal Nabil Roshdy, Reham Hassan
BDJ Open.2022;[Epub] CrossRef
Comparison of Canal Transportation, Separation Rate, and Preparation Time between One Shape and Neoniti (Neolix): An In Vitro CBCT Study
Maryam Kuzekanani, Faranak Sadeghi, Nima Hatami, Maryam Rad, Mansoureh Darijani, Laurence James Walsh, Sivakumar Nuvvula
International Journal of Dentistry.2021; 2021: 1. CrossRef
Shaping ability of ProTaper Gold, One Curve, and Self-Adjusting File systems in severely curved canals: A cone-beam computed tomography study
MeenuG Singla, Hemanshi Kumar, Ritika Satija
Journal of Conservative Dentistry.2021; 24(3): 271. CrossRef
Cone-beam computed tomographic analysis of apical transportation and centering ratio of ProTaper and XP-endo Shaper NiTi rotary systems in curved canals: an in vitro study
Hamed Karkehabadi, Zeinab Siahvashi, Abbas Shokri, Nasrin Haji Hasani
BMC Oral Health.2021;[Epub] CrossRef
Mechanical Tests, Metallurgical Characterization, and Shaping Ability of Nickel-Titanium Rotary Instruments: A Multimethod Research
Emmanuel J.N.L. Silva, Jorge N.R. Martins, Carolina O. Lima, Victor T.L. Vieira, Francisco M. Braz Fernandes, Gustavo De-Deus, Marco A. Versiani
Journal of Endodontics.2020; 46(10): 1485. 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
Comparison of vibration characteristics of file systems for root canal shaping according to file length
Seong-Jun Park, Se-Hee Park, Kyung-Mo Cho, Hyo-Jin Ji, Eun-Hye Lee, Jin-Woo Kim
Restorative Dentistry & Endodontics.2020;[Epub] CrossRef
New thermomechanically treated NiTi alloys – a review
J. Zupanc, N. Vahdat‐Pajouh, E. Schäfer
International Endodontic Journal.2018; 51(10): 1088. CrossRef
Shaping ability of four root canal instrumentation systems in simulated 3D-printed root canal models
David Christofzik, Andreas Bartols, Mahmoud Khaled Faheem, Doreen Schroeter, Birte Groessner-Schreiber, Christof E. Doerfer, Cyril Charles
PLOS ONE.2018; 13(8): e0201129. CrossRef
OPEN-SOURCE SOFTWARE IN DENTISTRY: A SYSTEMATIC REVIEW
Małgorzata Chruściel-Nogalska, Tomasz Smektała, Marcin Tutak, Katarzyna Sporniak-Tutak, Raphael Olszewski
International Journal of Technology Assessment in Health Care.2017; 33(4): 487. CrossRef
Mechanical Properties of Various Heat-treated Nickel-titanium Rotary Instruments
Hye-Jin Goo, Sang Won Kwak, Jung-Hong Ha, Eugenio Pedullà, Hyeon-Cheol Kim
Journal of Endodontics.2017; 43(11): 1872. CrossRef
A comparison of the shaping ability of three nickel-titanium rotary instruments: a micro-computed tomography study via a contrast radiopaque technique in vitro
Zhao Wei, Zhi Cui, Ping Yan, Han Jiang
BMC Oral Health.2017;[Epub] CrossRef
Root Canal Transportation and Centering Ability of Nickel-Titanium Rotary Instruments in Mandibular Premolars Assessed Using Cone-Beam Computed Tomography
Iussif Mamede-Neto, Alvaro Henrique Borges, Orlando Aguirre Guedes, Durvalino de Oliveira, Fábio Luis Miranda Pedro, Carlos Estrela
The Open Dentistry Journal.2017; 11(1): 71. CrossRef
Blue Thermomechanical Treatment Optimizes Fatigue Resistance and Flexibility of the Reciproc Files
Gustavo De-Deus, Emmanuel João Nogueira Leal Silva, Victor Talarico Leal Vieira, Felipe Gonçalves Belladonna, Carlos Nelson Elias, Gianluca Plotino, Nicola Maria Grande
Journal of Endodontics.2017; 43(3): 462. CrossRef

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An in vitro evaluation of the accuracy of four electronic apex locators using stainless-steel and nickel-titanium hand files: Paras Mull Gehlot, Vinutha Manjunath, Mysore Krishnaswamy Manjunath; Restor Dent Endod 2016;41(1):6-11. Published online January 4, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.6

Abstract PDF PubReader ePub

Objectives

The purpose of this in vitro study was to evaluate the accuracy of working length (WL) determination of four electronic apex locators (EALs), namely, Root ZX (RZX), Elements diagnostic unit and apex locator (ELE), SybronEndo Mini Apex locator (MINI) and Propex pixi (PIXI) using Stainless steel (SS) and nickel-titanium (NiTi) hand files. The null hypothesis was that there was no difference between canal length determination by SS and NiTi files of 4 EALs.

Materials and Methods

Sixty extracted, single rooted human teeth were decoronated and the canal orifice flared. The actual length (AL) was assessed visually, and the teeth were embedded in an alginate model. The electronic length (EL) measurements were recorded with all four EALs using SS and NiTi files at '0.5' reading on display. The differences between the AL and EL were compared.

Results

The results obtained with each EAL with SS and NiTi files were compared with AL. A paired sample t test showed that there was a statistical significant difference between EAL readings with SS and NiTi files for RZX and MINI (p < 0.05). The accuracy of RZX, ELE, MINI and PIXI within ± 0.5 mm of AL with SS/NiTi files were 93.3%/70%, 90%/91.7%, 95%/68.3%, and 83.3%/83.3%, respectively.

Conclusions

The results of this study indicate that Root ZX was statistically more accurate with NiTi files compared to SS files, while MINI was statistically more accurate with SS files compared to NiTi files. ELE and PIXI were not affected by the alloy type of the file used to determine WL.

Citations

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Accuracy of electronic apex locators using heat‐treatedNi‐Tifile
Kang‐Young Heo, Ho‐Keel Hwang, Hyoung‐Hoon Jo
Australian Endodontic Journal.2023; 49(1): 111. CrossRef
Impact of nickel-titanium instrument heat treatment on the precision of an inbuilt electronic apex locator and endodontic motor
Syed Manzoor Ul Haq Bukhari, Rahil Bhat, Sheeeban Rashid
IP Indian Journal of Conservative and Endodontics.2023; 8(3): 155. CrossRef
Clinical Accuracy and Precision of 3 Multifrequency Electronic Apex Locators Assessed through Micro–Computed Tomographic Imaging
Gustavo De-Deus, Viviany Cozer, Erick Miranda Souza, Emmanuel João Nogueira Leal Silva, Felipe Gonçalves Belladonna, Marco Simões-Carvalho, Marco Aurélio Versiani
Journal of Endodontics.2023; 49(5): 487. CrossRef
Influence of heat treatment of nickel–titanium instruments on the accuracy of an electronic apex locator integrated with endodontic motor
HermanoCamelo Paiva, Eduardo Akisue, GeorgeTáccio de Miranda Candeiro, Iandarade Lima Scardini, CelsoLuiz Caldeira, Giulio Gavini
Journal of Conservative Dentistry.2022; 25(6): 596. CrossRef
The accuracy of electronic apex locators for determining working length: An in vitro study with artificial teeth
Raquel C. F. D. Bernardo, Louise S. Alves, Adilia M. V. Bruno, Thais M. C. Coutinho, Heloisa Gusman
Australian Endodontic Journal.2021; 47(2): 217. CrossRef
LİTERATÜRDE IN VITRO ELEKTRONİK APEKS BULUCU ÇALIŞMALARINDA KULLANILAN ORTAM ÇEŞİTLERİ: BİR DERLEME
Hamza CUDAL, Tuğrul ASLAN, Yakup ÜSTÜN
Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi.2021; : 454. CrossRef
Effect of solvent use on postoperative pain in root canal retreatment: a randomized, controlled clinical trial
Ozgur Genc Sen, Ali Erdemir, Burhan Can Canakci
Clinical Oral Investigations.2020; 24(1): 257. CrossRef
A clinical evaluation of two electronic apex locators and conventional radiography in working length determination in primary molar and its influence on children's behavioral responses
Krithi Nellamakkada, SandyaS Patil, Madhu Kakanur, RaviS Kumar, Rachna Thakur
Journal of Indian Society of Pedodontics and Preventive Dentistry.2020; 38(2): 158. CrossRef
Comparison of the accuracies of multi-frequency electronic apex locators in teeth with enlarged apical foramina: ex vivo
Mügem Aslı Ekici, Bağdagül Helvacıoğlu Kıvanç, Adil Ekici
Acta Odontologica Turcica.2017;[Epub] CrossRef
Root ZX Electronic Foramen Locator: An Ex Vivo Study of Its Three Models’ Precision and Reproducibility
Bernardo Almeida Aguiar, Rafael Santos Reinaldo, Luciana Maria Arcanjo Frota, Mônica Sampaio do Vale, Bruno Carvalho de Vasconcelos
International Journal of Dentistry.2017; 2017: 1. CrossRef
Determination of the Accuracy of 5 Electronic Apex Locators in the Function of Different Employment Protocols
Tiago Nepomuceno Oliveira, Nilton Vivacqua-Gomes, Ricardo Affonso Bernardes, Rodrigo Ricci Vivan, Marco Antonio Hungaro Duarte, Bruno Carvalho Vasconcelos
Journal of Endodontics.2017; 43(10): 1663. CrossRef

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Effect of acidic solutions on the microhardness of dentin and set OrthoMTA and their cytotoxicity on murine macrophage: Soram Oh, Hiran Perinpanayagam, Yoon Lee, Jae-Won Kum, Yeon-Jee Yoo, Sang-Min Lim, Seok Woo Chang, Won-Jun Shon, Woocheol Lee, Seung-Ho Baek, Kee-Yeon Kum; Restor Dent Endod 2016;41(1):12-21. Published online December 1, 2015; DOI: https://doi.org/10.5395/rde.2016.41.1.12

Abstract PDF PubReader ePub

Objectives

To evaluate the effects of three acids on the microhardness of set mineral trioxide aggregate (MTA) and root dentin, and cytotoxicity on murine macrophage.

Materials and Methods

OrthoMTA (BioMTA) was mixed and packed into the human root dentin blocks of 1.5 mm diameter and 5 mm height. Four groups, each of ten roots, were exposed to 10% citric acid (CA), 5% glycolic acid (GA), 17% ethylenediaminetetraacetic acid (EDTA), and saline for five minutes after setting of the OrthoMTA. Vickers surface microhardness of set MTA and dentin was measured before and after exposure to solutions, and compared between groups using one-way ANOVA with Tukey test. The microhardness value of each group was analyzed using student t test. Acid-treated OrthoMTA and dentin was examined by scanning electron microscope (SEM). Cell viability of tested solutions was assessed using WST-8 assay and murine macrophage.

Results

Three test solutions reduced microhardness of dentin. 17% EDTA demonstrated severe dentinal erosion, significantly reduced the dentinal microhardness compared to 10% CA (p = 0.034) or 5% GA (p = 0.006). 10% CA or 5% GA significantly reduced the surface microhardness of set MTA compared to 17% EDTA and saline (p < 0.001). Acid-treated OrthoMTA demonstrated microporous structure with destruction of globular crystal. EDTA exhibited significantly more cellular toxicity than the other acidic solutions at diluted concentrations (0.2, 0.5, 1.0%).

Conclusions

Tested acidic solutions reduced microhardness of root dentin. Five minute's application of 10% CA and 5% GA significantly reduced the microhardness of set OrthoMTA with lower cellular cytotoxicity compared to 17% EDTA.

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Impact of calcium hydroxide and 2-hydroxyisocaproic acid on the microhardness of root dentine: an in vitro study
Nandini T. Niranjan, Protim Ghosh Dastidar, Raghavendra Penukonda, Galvin Sim Siang Lin, Roopa Babannavar, Arun Jaysheel, Harshada Pattar
Odontology.2024; 112(3): 711. CrossRef
Evaluation of the Effect of Chitosan-Based Irrigation Solutions on the Bond Strength of Mineral Trioxide Aggregate to Bulk-Fill Composite
Arzu Şahin Mantı, Bağdagül Helvacıoğlu Kıvanç
Journal of Functional Biomaterials.2024; 15(12): 370. CrossRef
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Naveen Chhabra, Abhishek Parolia
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Effect of Glycolic Acid, Maleic Acid, and EDTA in the Removal of Smear Layer from Root Canal Dentin
Tarini Mullick, Nidambur Vasudev Ballal
Pesquisa Brasileira em Odontopediatria e Clínica Integrada.2023;[Epub] CrossRef
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Mineet Kaul, Zinnie Nanda, Kranthikumar Reddy, Rahul Deore, Divya Mandlecha, Esha Jaiswal
Endodontology.2023; 35(3): 234. CrossRef
Calcium hydroxide and niobium pentoxide treatment effects before MTA placement
Kolli Sankeerthana, Kittappa Karthikeyan, Sekar Mahalaxmi
Australian Endodontic Journal.2023; 49(1): 48. CrossRef
Calcium silicate and calcium aluminate cements for dentistry reviewed
Carolyn Primus, James L. Gutmann, Franklin R. Tay, Anna B. Fuks
Journal of the American Ceramic Society.2022; 105(3): 1841. CrossRef
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Beliz Özel, Raif Erişen, Boonlert Kukiattrakoon
International Journal of Dentistry.2022; 2022: 1. CrossRef
The effects of sodium hypochlorite and ethylenediaminetetraacetic acid on the microhardness of Mineral Trioxide Aggregate and TotalFill Bioceramic Putty
Jacklyn H.R. Chu, Kalie Y. Chia, Alexander L. Qui, Alex Moule, William N. Ha
Australian Endodontic Journal.2020; 46(1): 33. CrossRef
Pre-application of dentin bonding agent prevents discoloration caused by mineral trioxide aggregate
Yoo-Lim Choi, Young-Eun Jang, Bom Sahn Kim, Jin-Woo Kim, Yemi Kim
BMC Oral Health.2020;[Epub] CrossRef
Glycolic acid as the final irrigant in endodontics: Mechanical and cytotoxic effects
Yuri Dal Bello, Hisadora Fracaro Porsch, Ana Paula Farina, Matheus Albino Souza, Emmanuel João Nogueira Leal Silva, Ana Karina Bedran-Russo, Doglas Cecchin
Materials Science and Engineering: C.2019; 100: 323. CrossRef
Carbohydrate-electrolyte drinks exhibit risks for human enamel surface loss
Mary Anne Sampaio de Melo, Vanara Florêncio Passos, Juliana Paiva Marques Lima, Sérgio Lima Santiago, Lidiany Karla Azevedo Rodrigues
Restorative Dentistry & Endodontics.2016; 41(4): 246. CrossRef

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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

Abstract PDF PubReader ePub

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.

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Jia Min Ng, Yan Yee Lee, Prashanti Chippagiri, Elaheh Ahanin, Abhishek Parolia
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Minerva Dental and Oral Science.2025;[Epub] CrossRef
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Rong Chai, Xinpei Jiang, Ruixia Ma, Qiang Zhang, E Yang, Ansheng Zhang
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Luca Fiorillo, Cesare D’Amico, Giusy Rita Maria La Rosa, Francesco Calanna, Alfio Pappalardo, Eugenio Pedullà
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Adhishree S Chib, Neeta S Padmawar, Sonali Waghmare, Durgesh A Tiwari, Shahinwaz Mulani, Megna Bhatt
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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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Australian Endodontic Journal.2020; 46(1): 82. CrossRef
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Mario Tanomaru-Filho, Fernanda Ferrari Esteves Torres, Jader Camilo Pinto, Airton Oliveira Santos-Junior, Karina Ines Medina Carita Tavares, Juliane Maria Guerreiro-Tanomaru
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Su-Jin Jeon, Young-Mi Moon, Min-Seock Seo
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Evaluation of reparative dentin formation of ProRoot MTA, Biodentine and BioAggregate using micro-CT and immunohistochemistry: Jia Kim, Young-Sang Song, Kyung-San Min, Sun-Hun Kim, Jeong-Tae Koh, Bin-Na Lee, Hoon-Sang Chang, In-Nam Hwang, Won-Mann Oh, Yun-Chan Hwang; Restor Dent Endod 2016;41(1):29-36. Published online January 4, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.29

Abstract PDF PubReader ePub

Objectives

The purpose of this study was to assess the ability of two new calcium silicate-based pulp-capping materials (Biodentine and BioAggregate) to induce healing in a rat pulp injury model and to compare them with mineral trioxide aggregate (MTA).

Materials and Methods

Eighteen rats were anesthetized, cavities were prepared and the pulp was capped with either of ProRoot MTA, Biodentine, or BioAggregate. The specimens were scanned using a high-resolution micro-computed tomography (micro-CT) system and were prepared and evaluated histologically and immunohistochemically using dentin sialoprotein (DSP).

Results

On micro-CT analysis, the ProRoot MTA and Biodentine groups showed significantly thicker hard tissue formation (p < 0.05). On H&E staining, ProRoot MTA showed complete dentin bridge formation with normal pulpal histology. In the Biodentine and BioAggregate groups, a thick, homogeneous hard tissue barrier was observed. The ProRoot MTA specimens showed strong immunopositive reaction for DSP.

Conclusions

Our results suggest that calcium silicate-based pulp-capping materials induce favorable effects on reparative processes during vital pulp therapy and that both Biodentine and BioAggregate could be considered as alternatives to ProRoot MTA.

Citations

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Clinical applications and classification of calcium silicate-based cements based on their history and evolution: a narrative review
Kenta Tsuchiya, Salvatore Sauro, Hidehiko Sano, Jukka P. Matinlinna, Monica Yamauti, Shuhei Hoshika, Yu Toida, Rafiqul Islam, Atsushi Tomokiyo
Clinical Oral Investigations.2025;[Epub] CrossRef
Histological evaluation of pulp response to alendronate and Biodentine as pulp capping agents: an animal study
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Marginal and internal fit of nano-composite CAD/CAM restorations: So-Hyun Park, Yeon-Jee Yoo, Yoo-Jin Shin, Byeong-Hoon Cho, Seung-Ho Baek; Restor Dent Endod 2016;41(1):37-43. Published online January 19, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.37

Abstract PDF PubReader ePub

Objectives

The purpose of this study was to compare the marginal and internal fit of nano-composite CAD-CAM restorations.

Materials and Methods

A full veneer crown and an mesio-occluso-distal (MOD) inlay cavity, which were prepared on extracted human molars, were used as templates of epoxy resin replicas. The prepared teeth were scanned and CAD-CAM restorations were milled using Lava Ultimate (LU) and experimental nano-composite CAD/CAM blocks (EB) under the same milling parameters. To assess the marginal and internal fit, the restorations were cemented to replicas and were embedded in an acrylic mold for sectioning at 0.5 mm intervals. The measured gap data were pooled according to the block types and measuring points for statistical analysis.

Results

Both the block type and measuring point significantly affected gap values, and their interaction was significant (p = 0.000). In crowns and inlays made from the two blocks, gap values were significantly larger in the occlusal area than in the axial area, while gap values in the marginal area were smallest (p < 0.001). Among the blocks, the restorations milled from EB had a significantly larger gap at all measuring points than those milled from LU (p = 0.000).

Conclusions

The marginal and internal gaps of the two nano-composite CAD/CAM blocks differed according to the measuring points. Among the internal area of the two nano-composite CAD/CAM restorations, occlusal gap data were significantly larger than axial gap data. The EB crowns and inlays had significantly larger gaps than LU restorations.

Citations

Citations to this article as recorded by

Dimensional accuracy of additive and subtractive manufactured ceramic-reinforced hybrid composite inlays: a CBCT-based in vitro study
Arwa Daghrery, Thilla Sekar Vinothkumar, Hissah Majrashi, Ghadah Faqihi, Rahaf Gofshi, Shroog Almasoudi, Rehaf Madkhali, Walter Yu Hang Lam, Honey Lunkad, Hemant Chourasia, Akhilanand Chaurasia
Scientific Reports.2025;[Epub] CrossRef
The Influence of Extra-Fine Milling Protocol on the Internal Fit of CAD/CAM Composite and Ceramic Crowns
João Paulo Mendes Tribst, Fatema Hosseini, Rafaela Oliveira Pilecco, Carlos Manuel Serrano, Cornelis Johannes Kleverlaan, Amanda Maria de Oliveira Dal Piva
Materials.2024; 17(22): 5601. CrossRef
Marginal fit of three different nanocomposite inlays fabricated with computer-aided design/computer-aided manufacturing (CAD/CAM) technology: a comparative study
Hyunsuk Choi, Jae-Young Jo, Min-Ho Hong
Journal of Yeungnam Medical Science.2024; 41(2): 80. CrossRef
Clinical comparison of marginal fit of ceramic inlays between digital and conventional impressions
Franklin Guillermo Vargas-Corral, Américo Ernesto Vargas-Corral, Miguel Angel Rodríguez-Valverde, Manuel Bravo, Juan Ignacio Rosales-Leal
The Journal of Advanced Prosthodontics.2024; 16(1): 57. CrossRef
Evaluation of Fitness and Accuracy of Milled and Three-Dimensionally Printed Inlays
Yoen Ah Lim, Jeong Mi Kim, Yoorina Choi, Sujung Park
European Journal of Dentistry.2023; 17(04): 1029. CrossRef
Microscopic Inspection of the Adhesive Interface of Composite Onlays after Cementation on Low Loading: An In Vitro Study
Tiago Magalhães, Rita Fidalgo-Pereira, Orlanda Torres, Óscar Carvalho, Filipe S. Silva, Bruno Henriques, Mutlu Özcan, Júlio C. M. Souza
Journal of Functional Biomaterials.2023; 14(3): 148. CrossRef
Triple scan evaluation of internal and marginal adaptation of overlays using different restorative materials
Cynthia Kassis, Carina Mehanna, Pierre Khoury, Hani Tohme, Carlos Enrique Cuevas‐Suárez, Rim Bourgi, Monika Lukomska‐Szymanska, Louis Hardan
Journal of Esthetic and Restorative Dentistry.2023; 35(3): 493. CrossRef
Effect of Bonding Protocols on the Performance of Luting Agents Applied to CAD–CAM Composites
Bruna Hilgemberg, Fabiana Suelen Figuerêdo de Siqueira, Andres Felipe Millan Cardenas, Josiane Loch Ribeiro, Andrés Dávila-Sánchez, Salvatore Sauro, Alessandro Dourado Loguercio, Cesar Augusto Galvao Arrais
Materials.2022; 15(17): 6004. CrossRef
Marginal and internal fit and fracture resistance of three‐unit provisional restorations fabricated by additive, subtractive, and conventional methods
Mehran Falahchai, Samiye Rahimabadi, Ghazaleh Khabazkar, Yasamin Babaee Hemmati, Hamid Neshandar Asli
Clinical and Experimental Dental Research.2022; 8(6): 1404. CrossRef
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Yubo Wang, Junfu Li, Daiyun Chen, Li Li, Tao Huang
Computational and Mathematical Methods in Medicine.2021; 2021: 1. CrossRef
Microleakage and Marginal Integrity of Direct and Indirect Composite Resin Restorations in MOD Cavities After Thermo-Mechanical Loading
Ayşe Aslı ŞENOL, Pınar YILMAZ ATALI, Erkut KAHRAMANOĞLU
Clinical and Experimental Health Sciences.2021; 11(3): 564. CrossRef
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Kun Qian, Xin Yang, Hailan Feng, Yihong Liu
Advances in Applied Ceramics.2020; 119(5-6): 284. CrossRef
BİLGİSAYAR DESTEKLİ TASARIM-BİLGİSAYAR DESTEKLİ ÜRETİM SİSTEMLERİNİN FARKLI DENTAL RESTORASYONLARIN KENAR VE İÇ YÜZEY UYUMLARINA ETKİSİNİN DEĞERLENDİRİLMESİ: İN-VİTRO ÇALIŞMA
Merve BENLİ, Bilge GÖKÇEN-ROHLİG
Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi.2020;[Epub] CrossRef
BİLGİSAYAR DESTEKLİ TASARIM-BİLGİSAYAR DESTEKLİ ÜRETİM SİSTEMLERİNİN FARKLI DENTAL RESTORASYONLARIN KENAR VE İÇ YÜZEY UYUMLARINA ETKİSİNİN DEĞERLENDİRİLMESİ: İN-VİTRO ÇALIŞMA
Merve BENLİ, Bilge GÖKÇEN-ROHLİG
Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi.2020; : 1. CrossRef
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Alexis Goujat, Hazem Abouelleil, Pierre Colon, Christophe Jeannin, Nelly Pradelle, Dominique Seux, Brigitte Grosgogeat
The Journal of Prosthetic Dentistry.2019; 121(4): 590. CrossRef
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Yuki NARUSE, Tomohiro TAKAGAKI, Naoko MATSUI, Takaaki SATO, Alghamdi ALI, Masaomi IKEDA, Toru NIKAIDO, Junji TAGAMI
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Edge strength of CAD/CAM materials
Maria Pfeilschifter, Verena Preis, Michael Behr, Martin Rosentritt
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Journal of Dentistry.2017; 65: 70. CrossRef

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Antioxidant therapy enhances pulpal healing in bleached teeth: Adriano Fonseca Lima, Marcelo Rocha Marques, Diana Gabriela Soares, Josimeri Hebling, Giselle Maria Marchi, Carlos Alberto de Souza Costa; Restor Dent Endod 2016;41(1):44-54. Published online February 1, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.44

Abstract PDF PubReader ePub

Objectives

The purpose of this study was to evaluate the histopathological effects of an antioxidant therapy on the pulp tissue of rat teeth exposed to a bleaching gel with 35% hydrogen peroxide.

Materials and Methods

Forty rats were subjected to oral ingestion by gavage of distilled water (DW) or ascorbic acid (AA) 90 min before the bleaching therapy. For the bleaching treatment, the agent was applied twice for 5 min each to buccal surfaces of the first right mandibular molars. Then, the animals were sacrificed at 6 hr, 24 hr, 3 day, or 7 day post-bleaching, and the teeth were processed for microscopic evaluation of the pulp tissue.

Results

At 6 hr, the pulp tissue showed moderate inflammatory reactions in all teeth of both groups. In the DW and AA groups, 100% and 80% of teeth exhibited pulp tissue with significant necrosis and intense tissue disorganization, respectively. At 24 hr, the AA-treated group demonstrated a greater regenerative capability than the DW group, with less intense inflammatory reaction and new odontoblast layer formation in 60% of the teeth. For up to the 7 day period, the areas of pulpal necrosis were replaced by viable connective tissue, and the dentin was underlined by differentiated odontoblast-like cells in most teeth of both groups.

Conclusions

A slight reduction in initial pulpal damage during post-bleaching was promoted by AA therapy. However, the pulp tissue of AA-treated animals featured faster regenerative potential over time.

Citations

Citations to this article as recorded by

Influence of dental bleaching on the pulp tissue: A systematic review of in vivo studies
Mariana Viana Donato, Alexandre Henrique dos Reis‐Prado, Lucas Guimarães Abreu, Lara Cancella de Arantes, Juliana Goto, Hebertt Gonzaga dos Santos Chaves, Luciano Tavares Angelo Cintra, André Luiz Fraga Briso, Isabella Faria da Cunha Peixoto, Francine Ben
International Endodontic Journal.2024; 57(6): 630. CrossRef
ANALYSIS OF THE INFLUENCE OF THE TEETH WHITENING PROCEDURE ON THE GUM AND CYTOKINE PROFILE OF ORAL FLUID (LITERATURE REVIEW)
S. S. Bozhik, N. V. Hasyuk, V. B. Radchuk
Bulletin of Problems Biology and Medicine.2024; 1(3): 17. CrossRef
Assessing the Viability of Laser-Activated Dental Bleaching Compared to Conventional In-Office Bleaching Methods: A Systematic Review of Clinical and In Vitro Studies
Eugenia Anagnostaki, Valina Mylona, Steven Parker, Mark Cronshaw, Martin Grootveld
Applied Sciences.2023; 13(22): 12459. CrossRef
Effects of the application of sodium ascorbate after in-office bleaching on the penetration of hydrogen peroxide, color change, and microtensile bond strength
Alexandra Mena-Serrano, María G. Granda-Albuja, Jenny Naranjo, Eliana Aldás Fierro, Michael Willian Favoreto, Alessandro D. Loguercio, Alessandra Reis
Brazilian Dental Journal.2023; 34(5): 87. CrossRef
Can different agents reduce the damage caused by bleaching gel to pulp tissue? A systematic review of basic research
Letícia Aparecida Silva Batista, Alexandre Henrique dos Reis-Prado, Hebertt Gonzaga dos Santos Chaves, Lara Cancella de Arantes, Luís Fernando Santos Alves Morgan, Carolina Bosso André, Thaís Yumi Suzuki, Francine Benetti
Restorative Dentistry & Endodontics.2023;[Epub] CrossRef
Design of a thermosensitive ibuprofen-loaded nanogel as smart material applied as anti-inflammatory in tooth bleaching: An in vivo study
Samara K.S.C.F. Moura, Milena L.V. dos Santos, Lucas A. do Nascimento, Mariana F.A. da Silva, Glória M. de França, Lucas M. da Costa, Aldo C. Medeiros, Raimundo F. Araújo-Júnior, Aurigena A. de Araújo, Cláudia N. Oliveira, André L. Dorini, Rejane A. de Ca
Journal of Drug Delivery Science and Technology.2022; 68: 103123. CrossRef
Effect of bleaching gel volume on color change and postoperative sensitivity: a randomized clinical study
Lara Maria Bueno Esteves, Paulo Henrique dos Santos, Ticiane Cestari Fagundes, Marjorie de Oliveira Gallinari, Giulia Bessa de Mello Antonaccio, Luciano Tavares Ângelo Cintra, André Luiz Fraga Briso
Clinical Oral Investigations.2022; 26(3): 2527. CrossRef
Human Dental Pulp Stem Cells Exhibit Different Biological Behaviours in Response to Commercial Bleaching Products
Carmen Llena, Mar Collado-González, Christopher Joseph Tomás-Catalá, David García-Bernal, Ricardo Elías Oñate-Sánchez, Francisco Javier Rodríguez-Lozano, Leopoldo Forner
Materials.2018; 11(7): 1098. CrossRef
Concentration‐dependent effect of bleaching agents on the immunolabelling of interleukin‐6, interleukin‐17 and CD5‐positive cells in the dental pulp
F. Benetti, J. E. Gomes‐Filho, L. L. Ferreira, G. Sivieri‐Araújo, E. Ervolino, A. L. F. Briso, L. T. A. Cintra
International Endodontic Journal.2018; 51(7): 789. CrossRef

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Analysis of C-shaped root canal configuration in maxillary molars in a Korean population using cone-beam computed tomography: Hyoung-Hoon Jo, Jeong-Bum Min, Ho-Keel Hwang; Restor Dent Endod 2016;41(1):55-62. Published online January 29, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.55

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Objectives

The purpose of this study was to investigate the incidence of root fusion and C-shaped root canals in maxillary molars, and to classify the types of C-shaped canal by analyzing cone-beam computed tomography (CBCT) in a Korean population.

Materials and Methods

Digitized CBCT images from 911 subjects were obtained in Chosun University Dental Hospital between February 2010 and July 2012 for orthodontic treatment. Among them, a total of selected 3,553 data of maxillary molars were analyzed retrospectively. Tomography sections in the axial, coronal, and sagittal planes were displayed by PiViewstar and Rapidia MPR software (Infinitt Co.). The incidence and types of root fusion and C-shaped root canals were evaluated and the incidence between the first and the second molar was compared using Chi-square test.

Results

Root fusion was present in 3.2% of the first molars and 19.5% of the second molars, and fusion of mesiobuccal and palatal root was dominant. C-shaped root canals were present in 0.8% of the first molars and 2.7% of the second molars. The frequency of root fusion and C-shaped canal was significantly higher in the second molar than the first molar (p < 0.001).

Conclusions

In a Korean population, maxillary molars showed total 11.3% of root fusion and 1.8% of C-shaped root canals. Furthermore, root fusion and C-shaped root canals were seen more frequently in the maxillary second molars.

Citations

Citations to this article as recorded by

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Case Reports

Accidental injury of the inferior alveolar nerve due to the extrusion of calcium hydroxide in endodontic treatment: a case report: Yooseok Shin, Byoung-Duck Roh, Yemi Kim, Taehyeon Kim, Hyungjun Kim; Restor Dent Endod 2016;41(1):63-67. Published online January 6, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.63

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During clinical endodontic treatment, we often find radiopaque filling material beyond the root apex. Accidental extrusion of calcium hydroxide could cause the injury of inferior alveolar nerve, such as paresthesia or continuous inflammatory response. This case report presents the extrusion of calcium hydroxide and treatment procedures including surgical intervention. A 48 yr old female patient experienced Calcipex II extrusion in to the inferior alveolar canal on left mandibular area during endodontic treatment. After completion of endodontic treatment on left mandibular first molar, surgical intervention was planned under general anesthesia. After cortical bone osteotomy and debridement, neuroma resection and neurorrhaphy was performed, and prognosis was observed. But no improvement in sensory nerve was seen following surgical intervention after 20 mon. A clinician should be aware of extrusion of intracanal medicaments and the possibility of damage on inferior alveolar canal. Injectable type of calcium hydroxide should be applied with care for preventing nerve injury. The alternative delivery method such as lentulo spiral was suggested on the posterior mandibular molar.

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Endodontic treatment of a C-shaped mandibular second premolar with four root canals and three apical foramina: a case report: Thikamphaa Bertrand, Sahng Gyoon Kim; Restor Dent Endod 2016;41(1):68-73. Published online January 19, 2016; DOI: https://doi.org/10.5395/rde.2016.41.1.68

Abstract PDF PubReader ePub

This case report describes a unique C-shaped mandibular second premolar with four canals and three apical foramina and its endodontic management with the aid of cone-beam computer tomography (CBCT). C-shaped root canal morphology with four canals was identified under a dental operating microscope. A CBCT scan was taken to evaluate the aberrant root canal anatomy and devise a better instrumentation strategy based on the anatomy. All canals were instrumented to have a 0.05 taper using 1.0 mm step-back filing with appropriate apical sizes determined from the CBCT scan images and filled using a warm vertical compaction technique. A C-shaped mandibular second premolar with multiple canals is an anatomically rare case for clinicians, yet its endodontic treatment may require a careful instrumentation strategy due to the difficulty in disinfecting the canals in the thin root area without compromising the root structure.

Citations

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Open Lecture on Statistics

Statistical notes for clinical researchers: Sample size calculation 1. comparison of two independent sample means: Hae-Young Kim; Restor Dent Endod 2016;41(1):74-78. Published online December 30, 2015; DOI: https://doi.org/10.5395/rde.2016.41.1.74

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Readers' Forum

Predictable management of the cracked tooth: Sin-Young Kim; Restor Dent Endod 2016;41(1):79-79. Published online December 23, 2015; DOI: https://doi.org/10.5395/rde.2016.41.1.79

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Letter to Editor

Questioning the spot light on Hi-tech endodontics: Jojo Kottoor, Denzil Albuquerque; Restor Dent Endod 2016;41(1):80-82. Published online December 23, 2015; DOI: https://doi.org/10.5395/rde.2016.41.1.80

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