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논문 기본 정보

자료유형
학술저널
저자정보
Meenu G Singla (Department of Conservative Dentistry and Endodontics Sudha Rustagi College of Dental Sciences and R) Nikhil Relhan (Department of Conservative Dentistry and Endodontics Sudha Rustagi College of Dental Sciences and R) Ishpreet Virdi (Department of Conservative Dentistry and Endodontics Sudha Rustagi College of Dental Sciences and R)
저널정보
대한예방치과학회 International Journal of Clinical Preventive Dentistry International Journal of Clinical Preventive Dentistry Vol.14 No.2
발행연도
2018.1
수록면
145 - 151 (7page)

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Objective: The aim of this study was to evaluate the microhardness and depth of cure of three high viscosity bulk fill resin composites and to compare it with a conventional composite. Methods: To evaluate depth of cure, the composite specimen was prepared using metallic mold with a hole of 4 mm depth and 4 mm internal diameter which was bulk filled with each of the three bulk fill composites (SonicFill, Filtek Bulk Fill Posterior & Beautifil Bulk Restorative) and light cured for 20 seconds. The conventional composite (Tetric N Ceram) was filled in the increments of 2-mm. The top and bottom surface hardness was measured using a Vickers microhardness indenter. The depth of cure was then calculated by dividing the bottom & top mean hardness values. Results: Sonicfill showed maximum surface microhardness followed by Beautifil Bulk restorative, Tetric N Ceram and Filtek Bulk Fill. Maximum depth of cure was seen in SonicFill followed by Filtek Bulk Fill, Tetric N Ceram and Beautifil Bulk restorative and the difference was statistically significant. SonicFill and Filtek Bulk Fill were able to achieve the minimum depth of cure value ≥0.80 at 4-mm depth. Beautiful bulk restorative composite was not able to achieve the minimum bottom to top ratio of 0.80. Conclusion: Microhardness and depth of cure is a material specific property and factors such as composition; content and size of fillers; viscosity and translucency of the material play an important role in determining the properties of the bulk fill composite.

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