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Journal of Dentomaxillofacil Radiology, Pathology and Surgery، جلد ۱۲، شماره ۱، صفحات ۹-۱۷
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عنوان انگلیسی Research Paper: Comparison of Stress Distribution in MOD Premolars Restored with Two Low Shrinkage Resin Composites Using Finite Element Analysis
چکیده انگلیسی مقاله  Abstract Introduction: The incremental filling technique in traditional resin composites results in reduced polymerization shrinkage. However, many products have recently been introduced as low-shrinkage resin composites that make the bulk-filling of cavities possible. Materials and Methods: Three identical dental models from a premolar tooth were made using a CADCAM digital scanner in the solid work software environment. MOD cavities were designed and filled by Tetric EvoCeram® Bulk Fill, GC KALORE™, and 3M ESPE Filtek P60 (control group) resin composites. Incremental and bulk-fill techniques were used for Tetric EvoCeram® Bulk Fill while GC KALORE™, and 3M ESPE Filtek P60 resin composites were used with incremental technique in Ansys 16 simulation software environment. Stress distribution and cuspal deflection rate were analyzed in Ansys 16 software by Kruskal–Wallis and Mann-Whitney U tests. Results: The mean stress intensity for Tetric EvoCeram® Bulk Fill in the bulk-fill technique was more than the incremental technique. Cuspal deflection rate and stress distribution among the resin composites, GC KALORE™, Tetric EvoCeram® Bulk Fill, and 3M ESPE Filtek P60 were in ascending order, respectively. Stress distribution was more uniform in the incremental technique. Conclusion: The GC KALORE™ resin composite had the least stress distribution and cuspal deflection rate.  
کلیدواژه‌های انگلیسی مقاله Finite Element Analysis, Composite Resins, Filtek p60 Composite Resin
نویسندگان مقاله | Maryam Tavangar
Associate Professor, Department of Operative Dentistry, Dentistry Faculty, Guilan University of Medical Sciences, Rasht, Guilan, Iran.


| Yasaman Sadeghi
Assisstant Professor, Department of Operative Dentistry, Dentistry Faculty, Guilan University of Medical Sciences, Rasht, Guilan, Iran.


| Sanaz Mihandoust
Dental Sciences Research Center, Dentistry Faculty, Guilan University of Medical Sciences, Rasht, Guilan, Iran.


| Ali Seyed Monir
Doctor of Dental Sugery, Rasht, Guilan, Iran.


| Saman Soltani
Doctor of Dental Sugery, Rasht, Guilan, Iran.


| Reza Tayefeh Davalloo
Associate Professor, Department of Operative Dentistry, Dentistry Faculty, Guilan University of Medical Sciences, Rasht, Guilan, Iran.
نشانی اینترنتی http://3dj.gums.ac.ir/browse.php?a_code=A-10-382-64&slc_lang=en&sid=1
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