의치상 연성 이장재 중합 환경이 의치상 레진과 이장재 사이의 인장 접착강도에 미치는 영향
Effect of pressure and temperature during curing on bond strength between denture base and soft liner
하정윤, 김교한, 권태엽,
소속 상세정보
하정윤 ( Ha Jung-Yun ) - 경북대학교 대학원 의용생체공학과
김교한 ( Kim Kho-Han ) - 경북대학교 치의학전문대학원 치과생체재료학교실
권태엽 ( Kwon Tae-Yub ) - 경북대학교 치의학전문대학원 치과생체재료학교실
KMID : 0362220130400010071
Abstract
In this study, we evaluated the effect of pressure and temperature during curing on bond strength between denture base and soft liner. One plasticized acrylic resin resilient lining material, one silicone resilient lining material, and one heat-cured acrylic (PMMA) denture base resin were selected in this study. The liners were sandwiched between two PMMA resins and cured in one of the following 4 ways: 1) control; 2) in hot water; 3) under pressure; and 4) under pressure in hot water. After 24-h storage, 10 specimens per each group were taken and the tensile bond test was performed with a universal testing machine and a crosshead speed of 5 mm min-1. After visual observation, failure was recorded as either cohesive, adhesive, or both. The other 10 specimens per each group were thermocycled 5000 times in water, between water baths at 5 and 55 °C, prior to testing the strength. Water sorption was the most influential factor to in bond strength between the denture base resin and acrylic liner, whereas pressure application affected the bond strength between the silicone liner and denture base resin.
키워드
Denture base resin; Soft liner; Curing; Bond strength
원문 및 링크아웃 정보
등재저널 정보