Restorative Dentistry & Endodontics

Myung-Jin Lim

6 Articles

Change of phase transformation and bond strength of Y-TZP with various hydrofluoric acid etching: Mi-Kyung Yu, Eun-Jin Oh, Myung-Jin Lim, Kwang-Won Lee; Restor Dent Endod 2021;46(4):e54. Published online October 20, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e54

Objectives

The purpose of this study was to quantify phase transformation after hydrofluoric acid (HF) etching at various concentrations on the surface of yttria-stabilized tetragonal zirconia polycrystal (Y-TZP), and to evaluate changes in bonding strength before and after thermal cycling.

Materials and Methods

A group whose Y-TZP surface was treated with tribochemical silica abrasion (TS) was used as the control. Y-TZP specimens from each experimental group were etched with 5%, 10%, 20%, and 40% HF solutions at room temperature for 10 minutes. First, to quantify the phase transformation, Y-TZP specimens (n = 5) treated with TS, 5%, 10%, 20% and 40% HF solutions were subjected to X-ray diffraction. Second, to evaluate the change in bond strength before and after thermal cycling, zirconia primer and MDP-containing resin cement were sequentially applied to the Y-TZP specimen. After 5,000 thermal cycles for half of the Y-TZP specimens, shear bond strength was measured for all experimental groups (n = 10).

Results

The monoclinic phase content in the 40% HF-treated group was higher than that of the 5%, 10%, and 20% HF-treated groups, but lower than that of TS-treated group (p < 0.05). The 40% HF-treated group showed significantly higher bonding strength than the TS, 5%, and 10% HF-treated groups, even after thermal cycling (p < 0.05).

Conclusions

Through this experiment, the group treated with SiO₂ containing air-borne abrasion on the Y-TZP surface showed higher phase transformation and higher reduction in bonding strength after thermal cycling compared to the group treated with high concentration HF.

Citations

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Improving the Clinical Performance of Dental Implants Through Advanced Surface Treatments: The Case of Ti and ZrO2 Coatings
Mohamed Aissi, Qanita Tayyaba, Azzedine Er-Ramly, Hendra Hermawan, Nadia Merzouk
Metals.2025; 15(3): 320. CrossRef
Surface property changes observed in zirconia during etching with high-concentration hydrofluoric acid over various immersion times
Ga-Eul YOU, Myung-Jin LIM, Kyung-San MIN, Mi-Kyung YU, Kwang-Won LEE
Dental Materials Journal.2024; 43(1): 52. CrossRef
Effect of surface treatments on the bond strength for different generation of zirconia CAD/CAM blocks
Man-Jong Cho, Sunwoong Song, Shin Hye Chung, Young-Seok Park, Bum-Soon Lim
Korean Journal of Dental Materials.2024; 51(3): 157. CrossRef
Is zirconia surface etching a viable alternative to airborne particle abrasion? A systematic review and meta-analysis of in vitro studies
Carlo D'Alessandro, Uros Josic, Claudia Mazzitelli, Tatjana Maravic, Laurel Graham, Carlo Barausse, Annalisa Mazzoni, Lorenzo Breschi, Markus B. Blatz
Journal of Dentistry.2024; 151: 105394. CrossRef
Exploring Zirconia Adhesion: Pre and Postsintering Physical Surface Treatment, Chemical Treatment, and Cement Interactions
Flávia Gonçalves, Mirko Dennys Ayala-Perez, Francisco Carlos dos Santos Reis, Walter Gomes Miranda-Júnior, Letícia Cristina Cidreira Boaro, Heng Bo Jiang
BioMed Research International.2024;[Epub] CrossRef
3Y-TZP electrostatic painting to increase bond strength to dentin and dental prostheses
Alessandro Brito Thomaz, Carlos Nelson Elias, Heraldo Elias Salomão dos Santos, Celso Renato de Souza Resende, Claudinei dos Santos
Journal of Materials Research and Technology.2023; 26: 9063. CrossRef
Effect of surface topography and wettability on shear bond strength of Y-TZP ceramic
Suriyakul Wongsue, Ornnicha Thanatvarakorn, Taweesak Prasansuttiporn, Piyarat Nimmanpipug, Thanapat Sastraruji, Keiichi Hosaka, Richard M. Foxton, Masatoshi Nakajima
Scientific Reports.2023;[Epub] CrossRef
Adhesive Cementation of Zirconia Based Ceramics-Surface Modification Methods Literature Review
Magdalena Szawioła-Kirejczyk, Karolina Chmura, Krzysztof Gronkiewicz, Andrzej Gala, Jolanta E. Loster, Wojciech Ryniewicz
Coatings.2022; 12(8): 1067. CrossRef
Y-TZP Physicochemical Properties Conditioned with ZrO2 and SiO2 Nanofilms and Bond Strength to Dual Resin Cement
Ricardo Faria Ribeiro, Danilo Flamini Oliveira, Camila Bussola Tovani, Ana Paula Ramos, Ana Flavia Sanches Borges, Adriana Claudia Lapria Faria, Rossana Pereira de Almeida, Renata Cristina Silveira Rodrigues
Materials.2022; 15(22): 7905. CrossRef
Enhanced osteogenic activity of titania-modified zirconia implant by ultraviolet irradiation
Shuang Tang, Yan Wang, Zhenyu Zong, Ning Ding, Zutai Zhang
Frontiers in Bioengineering and Biotechnology.2022;[Epub] CrossRef

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Effect of hydrofluoric acid-based etchant at an elevated temperature on the bond strength and surface topography of Y-TZP ceramics: Mi-Kyung Yu, Myung-Jin Lim, Noo-Ri Na, Kwang-Won Lee; Restor Dent Endod 2020;45(1):e6. Published online December 3, 2019; DOI: https://doi.org/10.5395/rde.2020.45.e6

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Objectives

This study investigated the effects of a hydrofluoric acid (HA; solution of hydrogen fluoride [HF] in water)-based smart etching (SE) solution at an elevated temperature on yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramics in terms of bond strength and morphological changes.

Materials and Methods

Eighty sintered Y-TZP specimens were prepared for shear bond strength (SBS) testing. The bonding surface of the Y-TZP specimens was treated with 37% phosphoric acid etching at 20°C–25°C, 4% HA etching at 20°C–25°C, or HA-based SE at 70°C–80°C. In all groups, zirconia primers were applied to the bonding surface of Y-TZP. For each group, 2 types of resin cement (with or without methacryloyloxydecyl dihydrogen phosphate [MDP]) were used. SBS testing was performed. Topographic changes of the etched Y-TZP surface were analyzed using scanning electron microscopy and atomic force microscopy. The results were analyzed and compared using 2-way analysis of variance.

Results

Regardless of the type of resin cement, the highest bond strength was measured in the SE group, with significant differences compared to the other groups (p < 0.05). In all groups, MDP-containing resin cement yielded significantly higher bond strength values than MDP-free resin cement (p < 0.05). It was also shown that the Y-TZP surface was etched by the SE solution, causing a large change in the surface topography.

Conclusions

Bond strength significantly improved when a heated HA-based SE solution was applied to the Y-TZP surface, and the etched Y-TZP surface was more irregular and had higher surface roughness.

Citations

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Evaluation of Different Surface Roughening Techniques on Clear Aligner Attachments Bonded to Monolithic Zirconia: In Vitro Study
Nehal F Albelasy, Ahmad M Hafez, Abdullah S Alhunayni
The Journal of Contemporary Dental Practice.2025; 25(12): 1104. CrossRef
Effect of Acid Surface Treatments on the Shear Bond Strength of Metal Bracket to Zirconia Ceramics
Punchanit Wongrachit, Bancha Samruajbenjakun, Boonlert Kukiattrakoon, Tanapat Jearanai, Supontep Teerakanok, Pannapat Chanmanee
Ceramics.2024; 7(2): 689. CrossRef
Exploring Zirconia Adhesion: Pre and Postsintering Physical Surface Treatment, Chemical Treatment, and Cement Interactions
Flávia Gonçalves, Mirko Dennys Ayala-Perez, Francisco Carlos dos Santos Reis, Walter Gomes Miranda-Júnior, Letícia Cristina Cidreira Boaro, Heng Bo Jiang
BioMed Research International.2024;[Epub] CrossRef
Evaluation of zirconia surfaces and shear bond strength after acid–etching with ultrasonic vibration
Xiaozhen Zhang, Hepeng Nie, Jiaxin Lv, Shanshan Yuan, Juan Wang, Kunzhan Cai, Jin Wu, Qingqing Zhang, Chunbo Tang
Materials Research Express.2024; 11(2): 025401. CrossRef
Effects of Surface-Etching Systems on the Shear Bond Strength of Dual-Polymerized Resin Cement and Zirconia
Sang-Hyun Kim, Kyung Chul Oh, Hong-Seok Moon
Materials.2024; 17(13): 3096. CrossRef
Zirconia bond strength durability following artificial aging: A systematic review and meta-analysis of in vitro studies
Athanasios E. Rigos, Katia Sarafidou, Eleana Kontonasaki
Japanese Dental Science Review.2023; 59: 138. CrossRef
Y-TZP Physicochemical Properties Conditioned with ZrO2 and SiO2 Nanofilms and Bond Strength to Dual Resin Cement
Ricardo Faria Ribeiro, Danilo Flamini Oliveira, Camila Bussola Tovani, Ana Paula Ramos, Ana Flavia Sanches Borges, Adriana Claudia Lapria Faria, Rossana Pereira de Almeida, Renata Cristina Silveira Rodrigues
Materials.2022; 15(22): 7905. CrossRef
Effect of the nanofilm-coated zirconia ceramic on resin cement bond strength
Viviane Maria Gonçalves de Figueiredo, Alecsandro de Moura Silva, Marcos Massi, Argemiro Soares da Silva Sobrinho, José Renato Cavalcanti de Queiroz, João Paulo Barros Machado, Renata Falchete do Prado, Lafayette Nogueira Junior
Journal of Dental Research, Dental Clinics, Dental Prospects.2022; 16(3): 170. CrossRef
Change of phase transformation and bond strength of Y-TZP with various hydrofluoric acid etching
Mi-Kyung Yu, Eun-Jin Oh, Myung-Jin Lim, Kwang-Won Lee
Restorative Dentistry & Endodontics.2021;[Epub] CrossRef
Changes in Bond Strength and Topography for Y-TZP Etched with Hydrofluoric Acid Depending on Concentration and Temperature Conditions
Hyo-Eun Kim, Myung-Jin Lim, Mi-Kyung Yu, Kwang-Won Lee
Medicina.2020; 56(11): 568. CrossRef
Do different sintering conditions influence bond strength between the resin cements and a currently used esthetic zirconia?
Fatma Ayse Sanal, Hamiyet Kilinc
Journal of Adhesion Science and Technology.2020; 34(16): 1809. CrossRef

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The effect of continuous application of MDP-containing primer and luting resin cement on bond strength to tribochemical silica-coated Y-TZP: Myung-Jin Lim, Mi-Kyung Yu, Kwang-Won Lee; Restor Dent Endod 2018;43(2):e19. Published online April 3, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e19

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Objectives

This study investigated the effect of continuous application of 10-methacryloyloxydecyldihydrogen phosphate (MDP)-containing primer and luting resin cement on bond strength to tribochemical silica-coated yttria-stabilized tetragonal zirconia polycrystal (Y-TZP).

Materials and Methods

Forty bovine teeth and Y-TZP specimens were prepared. The dentin specimens were embedded in molds, with one side of the dentin exposed for cementation with the zirconia specimen. The Y-TZP specimen was prepared in the form of a cylinder with a diameter of 3 mm and a height of 10 mm. The bonding surface of the Y-TZP specimen was sandblasted with silica-coated aluminium oxide particles. The forty tribochemical silica-coated Y-TZP specimens were cemented to the bovine dentin (4 groups; n = 10) with either an MDP-free primer or an MDP-containing primer and either an MDP-free resin cement or an MDP-containing resin cement. After a shear bond strength (SBS) test, the data were analyzed using 1-way analysis of variance and the Tukey test (α = 0.05).

Results

The group with MDP-free primer and resin cement showed significantly lower SBS values than the MDP-containing groups (p < 0.05). Among the MDP-containing groups, the group with MDP-containing primer and resin cement showed significantly higher SBS values than the other groups (p < 0.05).

Conclusions

The combination of MDP-containing primer and luting cement following tribochemical silica coating to Y-TZP was the best choice among the alternatives tested in this study.

Citations

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Improving Zirconia–Resin Cement Bonding Through Laser Surface Texturing: A Comparative Study
Ji-Young Yoon
Prosthesis.2025; 7(1): 19. CrossRef
The effect of restorative material selection and cementation procedures on the durability of endocrowns in the anterior teeth: an in-vitro study
Nehal Samra, Manal M Madina, Salwa Abd El-Raof El-Negoly, Lamia Dawood
BMC Oral Health.2024;[Epub] CrossRef
Effects of primer components of silane and 10-methacryloyloxydecyl dihydrogen phosphate on resin bonding to tribochemical silica-coated highly translucent zirconia
Fumika Tsuda, Keiichi Yoshida, Takashi Sawase
Clinical Oral Investigations.2024;[Epub] CrossRef
Zirconia Crowns with Porcelain Veneers for Optimal Esthetics in Children Using CAD/CAM Technology: A Case Report
P Bakhtiary, P Aref
Journal of Research in Dental and Maxillofacial Sciences.2022; 7(3): 168. CrossRef
A novel porous silica-zirconia coating for improving bond performance of dental zirconia
Zhiwei Su, Mingxing Li, Ling Zhang, Chaoyang Wang, Leiqing Zhang, Jingqiu Xu, Baiping Fu
Journal of Zhejiang University-SCIENCE B.2021; 22(3): 214. CrossRef
Change of phase transformation and bond strength of Y-TZP with various hydrofluoric acid etching
Mi-Kyung Yu, Eun-Jin Oh, Myung-Jin Lim, Kwang-Won Lee
Restorative Dentistry & Endodontics.2021;[Epub] CrossRef
Effect of hydrofluoric acid-based etchant at an elevated temperature on the bond strength and surface topography of Y-TZP ceramics
Mi-Kyung Yu, Myung-Jin Lim, Noo-Ri Na, Kwang-Won Lee
Restorative Dentistry & Endodontics.2020;[Epub] CrossRef
Computer-aided Design and Computer-aided Manufacturing Restorations with Minimal Invasive Approaches
Emine Mustafaoğlu, Özge Ünal, Bora Bağış
International Journal of Prosthodontics and Restorative Dentistry.2020; 10(1): 39. CrossRef
Changes in Bond Strength and Topography for Y-TZP Etched with Hydrofluoric Acid Depending on Concentration and Temperature Conditions
Hyo-Eun Kim, Myung-Jin Lim, Mi-Kyung Yu, Kwang-Won Lee
Medicina.2020; 56(11): 568. CrossRef
Effects of MDP‑based primers on shear bond strength between resin cement and zirconia
Xin Yue, Xiaoyan Hou, Jing Gao, Pingping Bao, Jing Shen
Experimental and Therapeutic Medicine.2019;[Epub] CrossRef

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Removal efficacy and cytotoxicity of a calcium hydroxide paste using N-2-methyl-pyrrolidone as a vehicle: Myung-Jin Lim, Hyun-Jin Jang, Mi-Kyung Yu, Kwang-Won Lee, Kyung-San Min; Restor Dent Endod 2017;42(4):290-300. Published online October 20, 2017; DOI: https://doi.org/10.5395/rde.2017.42.4.290

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Objectives

This study investigated the removal efficacy and cytotoxicity of a newly developed calcium hydroxide paste (cleaniCal, Maruchi) using N-2-methyl-pyrrolidone (NMP) as a vehicle in comparison with ApexCal (Ivoclar Vivadent) and Calcipex II (Nishika), which use different vehicles such as polyethylene glycol and propylene glycol, respectively.

Materials and Methods

Thirty maxillary premolars with oval-shaped canals were divided into 3 groups and the teeth were filled with one of the pastes. After removal of the paste, micro-computed tomographic (μ-CT) imaging was obtained to assess the volume of residual paste in the root canal of each tooth. The teeth were then split longitudinally and the area of the paste-coated surface was evaluated by stereomicroscopy. The cytotoxicity of each product was assessed using an agar overlay assay. The effect of each vehicle on cell viability was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The data were analyzed using one-way analysis of variance and Tukey's tests to detect any significance (p < 0.05).

Results

In the μ-CT and stereomicroscopic analysis, cleaniCal exhibited less remnants of medicament than ApexCal and Calcipex. cleaniCal showed a higher cytotoxicity than the other pastes in the agar overlay assay. Furthermore, NMP exhibited lower cell viability compared to the other vehicles.

Conclusions

cleaniCal showed better removal efficacy compared to the other products. However, clinicians should be aware of the higher cytotoxicity of the NMP-based material and consider its possible adverse effects on periradicular tissue when it is overfilled.

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Synergistic effects of reduced graphene oxide on the antibacterial activity of calcium hydroxide-based intracanal medicaments containing different vehicles
Mi-Ah Kim, Min-Kyeong Kim, Eun-Sook Kang, Kyung-San Min
Journal of Oral Science.2025; 67(1): 35. CrossRef
Lipoteichoic Acid from Lacticaseibacillus rhamnosus GG as a Novel Intracanal Medicament Targeting Enterococcus faecalis Biofilm Formation
Ji-Young Yoon, Somin Park, Dongwook Lee, Ok-Jin Park, WooCheol Lee, Seung Hyun Han
Journal of Microbiology.2024; 62(10): 897. CrossRef
Rheological properties and handling characteristics of four injectable calcium hydroxide pastes
Min-Jung KIM, In-Bog LEE
Dental Materials Journal.2024; 43(6): 796. CrossRef
Role of vehicles on antimicrobial efficacy of calcium hydroxide
Dikshya Purohit, Shronika, Pradyumna Misra, Gaurav Jain, Preeti Shukla
Asian Journal of Oral Health and Allied Sciences.2023; 13: 9. CrossRef
Removal of Calcium Hydroxide Paste Leaked Into the Maxillary Sinus
Dohee Kim, Young Kim, Jeong Joon Han
Ear, Nose & Throat Journal.2023;[Epub] CrossRef
Conservative Management of Molar Incisor Hypomineralization Using Biomimetic Material in a 9-Year-Old Boy
Sahili Mungekar-Markandey, Ashwin Jawdekar
Journal of Dental Research and Review.2022; 9(4): 320. CrossRef
Sonic irrigation for removal of calcium hydroxide in the apical root canal: A micro-CT and light-coupled tracking analysis
Wonjoon Moon, Shin Hye Chung, Juhea Chang, Zhaoqiang Zhang
PLOS ONE.2022; 17(6): e0268791. CrossRef
Effect of N-2-methyl-pyrrolidone on Enterococcus faecalis biofilms
Mi-Ah KIM, Prasanna NEELAKANTAN, Kyung-San MIN
Dental Materials Journal.2022; 41(5): 774. CrossRef
Characterization, Antimicrobial Effects, and Cytocompatibility of a Root Canal Sealer Produced by Pozzolan Reaction between Calcium Hydroxide and Silica
Mi-Ah Kim, Vinicius Rosa, Prasanna Neelakantan, Yun-Chan Hwang, Kyung-San Min
Materials.2021; 14(11): 2863. CrossRef
Synthesis, structure, and theoretical studies of a calcium complex of a unique dianion derived from 1-methylpyrrolidin-2-one
Ray J. Butcher, Andrew P. Purdy, Paul A. Brown, Daniel Gunlycke
Acta Crystallographica Section E Crystallographic Communications.2021; 77(1): 70. CrossRef
Effect of a calcium hydroxide-based intracanal medicament containing N-2-methyl pyrrolidone as a vehicle against Enterococcus faecalis biofilm
Taegun KIM, Mi-Ah KIM, Yun-Chan HWANG, Vinicius ROSA, Massimo DEL FABBRO, Kyung-San MIN
Journal of Applied Oral Science.2020;[Epub] CrossRef

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Effect of adhesive luting on the fracture resistance of zirconia compared to that of composite resin and lithium disilicate glass ceramic: Myung-Jin Lim, Kwang-Won Lee; Restor Dent Endod 2017;42(1):1-8. Published online October 14, 2016; DOI: https://doi.org/10.5395/rde.2017.42.1.1

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Objectives

The purpose of this study was to evaluate the effect of adhesive luting on the fracture resistance of zirconia compared to that of a composite resin and a lithium disilicate glass ceramic.

Materials and Methods

The specimens (dimension: 2 mm × 2 mm × 25 mm) of the composite resin, lithium disilicate glass ceramic, and yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) were prepared. These were then divided into nine groups: three non-luting groups, three non-adhesive luting groups, and three adhesive luting groups, for each restorative material. In the non-luting groups, specimens were placed on the bovine tooth without any luting agents. In the non-adhesive luting groups, only zinc phosphate cement was used for luting the specimen to the bovine tooth. In the adhesive luting groups, specimens were pretreated, and the adhesive luting procedure was performed using a self-adhesive resin cement. For all the groups, a flexural test was performed using universal testing machine, in which the fracture resistance was measured by recording the force at which the specimen was fractured.

Results

The fracture resistance after adhesive luting increased by approximately 29% in the case of the composite resin, 26% in the case of the lithium disilicate glass ceramic, and only 2% in the case of Y-TZP as compared to non-adhesive luting.

Conclusions

The fracture resistance of Y-TZP did not increased significantly after adhesive luting as compared to that of the composite resin and the lithium disilicate glass ceramic.

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Cyclic fatigue of a repaired 4 YSZ ceramic: Effect of the repair protocol on the adhesive and mechanical behavior
Pablo Machado Soares, Lucas Saldanha da Rosa, Rafaela Oliveira Pilecco, Gabriel Kalil Rocha Pereira, Amanda Maria de Oliveira Dal Piva, João Paulo Mendes Tribst, Luiz Felipe Valandro, Cornelis Johannes Kleverlaan, Marilia Pivetta Rippe
Heliyon.2024; 10(1): e23709. CrossRef
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Hiro Kobayashi, Franz Sebastian Schwindling, Akinori Tasaka, Peter Rammelsberg, Shuichiro Yamashita, Stefan Rues
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A. Ioannidis, D. Bomze, C.H.F. Hämmerle, J. Hüsler, O. Birrer, S. Mühlemann
Dental Materials.2020; 36(4): e109. CrossRef
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Journal of Dentistry.2018; 75: 74. CrossRef

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In vitro evaluation of a newly produced resin-based endodontic sealer: Yoo-Seok Song, Yoorina Choi, Myung-Jin Lim, Mi-Kyung Yu, Chan-Ui Hong, Kwang-Won Lee, Kyung-San Min; Restor Dent Endod 2016;41(3):189-195. Published online July 26, 2016; DOI: https://doi.org/10.5395/rde.2016.41.3.189

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Objectives

A variety of root canal sealers were recently launched to the market. This study evaluated physicochemical properties, biocompatibility, and sealing ability of a newly launched resin-based sealer (Dia-Proseal, Diadent) compared to the existing root canal sealers (AHplus, Dentsply DeTrey and ADseal, Metabiomed).

Materials and Methods

The physicochemical properties of the tested sealers including pH, solubility, dimensional change, and radiopacity were evaluated. Biocompatibility was measured using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. For microleakage test, single-rooted teeth were instrumented, and obturated with gutta-percha and one of the sealers (n = 10). After immersion in 1% methylene blue solution for 2 weeks, the specimens were split longitudinally. Then, the maximum length of staining was measured. Statistical analysis was performed by one-way analysis of variance followed by Tukey test (p = 0.05).

Results

Dia-Proseal showed the highest pH value among the tested sealers (p < 0.05). ADseal showed higher dimensional change compared to AHplus and Dia-Proseal (p < 0.05). The solubility values of AHplus and Dia-Proseal were similar, whereas ADseal had the lowest solubility value (p < 0.05). The flow values of sealer in increasing order were AHplus, DiaProseal, and ADseal (p < 0.05). The radiopacity of AHplus was higher than those of ADseal and Dia-Proseal (p < 0.05). The cell viability of the tested materials was statistically similar throughout the experimental period. There were no significant differences in microleakage values among the tested samples.

Conclusions

The present study indicates that Dia-Proseal has acceptable physicochemical properties, biocompatibility, and sealing ability.

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