망사 형태의 유리섬유 구조와 함량에 따른 유동성 자가중합 의치상용 레진의 강화효과
Reinforcing effect of glass fiber mesh with different content and structures on autopolymerized pour-type denture base resin
유상희, 오승한, 배지명,
소속 상세정보
유상희 ( Yu Sang-Hui ) - 원광대학교 치과대학 치과생체재료학교실
오승한 ( Oh Seung-Han ) - 원광대학교 치과대학 치과생체재료학교실
배지명 ( Bae Ji-Myung ) - 원광대학교 치과대학 치과생체재료학교실
KMID : 1035320140410010059
Abstract
The aim of this study was to evaluate the reinforcing effects of glass fiber meshes with different content and structures on auto-polymerized pour-type denture base resin. The reinforcements were two types of glass fiber meshes; SES mesh(SES: SES 1108, INNO Dental Co., Ltd., Korea) and Glass cloth(GC: Glass cloth R 326, Hankuk Fiber Co., Korea). GC groups were prepared in two layers(GC 2), three layers(GC 3), and four layers(GC 4). Auto-polymerized pour-type resin(PRESS LT; retec, Rosbach, Germany) was used as the denture base resin. The specimen(64×10×3.3 mm) was prepared by locating each reinforcement at the tension side of the three-point bending mode. Control group was prepared without any reinforcement. The flexural properties of the specimen were measured by an universal testing machine at a crosshead speed of 5 mm/min. The results were evaluated with 1-way ANOVA, and the Duncan’s multiple range test(�� =0.05). The flexural strength and toughness of all the glass fiber reinforced groups were significantly higher than the control, except GC 2(P<0.05) and GC 3 showed the highest toughness(P<0.05). The flexural moduli of all the glass fiber reinforced groups were significantly higher than the control(P<0.05). SES(4.36 vol%), GC 3(5.34 vol%) and GC 4(7.39 vol%) were effective in reinforcing the flexural properties of the denture base resin and GC 3 was most effective. Content of the glass fiber reinforcement is considered to be a more important factor than the structure.
키워드
Fiber-reinforced composite (FRC); Glass fiber mesh; Denture base resin; Flexural properties
원문 및 링크아웃 정보
등재저널 정보