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http://dx.doi.org/10.14347/kadt.2013.35.4.333

Flexural strength of indirect composite resin with different polymerization conditions  

Geum, Young-Hee (Department of Dental Laboratory Science Graduate School, Catholic University of Pusan)
Kim, Busob (Department of Dental Laboratory Science Graduate School, Catholic University of Pusan)
Publication Information
Journal of Technologic Dentistry / v.35, no.4, 2013 , pp. 333-341 More about this Journal
Abstract
Purpose: The purpose of this study was to evaluate the flexural strength of indirect composite resins with different polymerization conditions. Methods: Ten specimens ($2mm{\times}2mm{\times}25mm$) of each composite resins (Tescera (T), Gradia (S) and Sinfony (S)) were fabricated by two polymerization methods : manufacturers's and light heat pressure. Composite resins polymerized by manufacturers's method and light heat pressure served as control (TS, GS and SS) and experimental groups (TE, GE and SE), respectively. The composite resins were tested for flexural strength and the surface of composite resins were observed with scanning electron microscope (SEM) under X1,000 magnification. Results: The flexural strength values of cured composite resin decreased in the following order: TE (195.4MPa), TS (179.8MPa), GE (169.9MPa), SE (137.7MPa), SS (111.1MPa) and GS (100.9MPa) groups. Conclusion: The flexural strength values between the control and the experimental groups were not significantly different although experimental groups showed higher flexural strength values than control groups.
Keywords
light.heat.pressure; flexural strength; SEM; indirect composite resin;
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Times Cited By KSCI : 3  (Citation Analysis)
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