다양한 중합 방법으로 제작한 간접 수복물용 복합레진의 굴곡 강도
Flexural strength of composite resin fabricated by various polymerization method
김동연, 박진영, 강후원, 김지환, 김웅철,
소속 상세정보
김동연 ( Kim Dong-Yeon ) - 고려대학교 보건과학대학 보건과학연구소
박진영 ( Park Jin-Young ) - 고려대학교 보건과학대학 보건과학연구소
강후원 ( Kang Hoo-Won ) - 동아보건대학교 치위생과
김지환 ( Kim Ji-Hwan ) - 고려대학교 보건과학과 치의기공전공
김웅철 ( Kim Woong-Chul ) - 고려대학교 보건과학과 치의기공전공
Abstract
Purpose: The aim of this study is to evaluate composite resins of indirect restorations for testing of flexural strength according to various polymerization methods.
Methods: Specimen was produced a total of 40 to 10 per each group with a length 25 mm, width 2 mm, thickness 2 mm using a Teflon zig. The polymerization groups were classified into four groups. The first group proceeded with light curing only(LC group). The second group proceeded with light and heat curing(LHC group). The third group proceeded with air press and light curing(ALC group). The fourth group proceeded with air press, light and heat curing(ALHC group). Each prepared group was evaluated by flexural strength test. Statistical analysis was performed by one-way ANOVA. Post-test was performed with Tukey test.
Results: The lowest in the ALC group was 119.18 MPa and the highest in the ALHC group was 168.15 MPa. There were statistically significant differences.
Conclusion : The composite resin of the indirect restoration is recommended to heat curing along with the air press.
키워드
Composite resin; Light curing; Heat curing; Flexural strength
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