복합레진 인레이의 내면처리와 합착용 시멘트의 종류에 따른 인장접합강도에 관한 연구
김진철, 조영곤, 이동근,
소속 상세정보
김진철 ( ) - 조선대학교
조영곤 ( ) - 조선대학교
이동근 ( ) - 조선대학교
KMID : 0362319930180010103
Abstract
The purpose of this study was to evaluate the tensile bond strength of composite resin inlays according to the their internal surface treatment and types of luting cement and compared them witht he conventional direct resin filling thchnique.
Class II cavities were prepared in 50 extracted human molar teeth,
and then equally divided into five groups.
Group 1:Cavities of control group were directly filled with P-50.
Group 2: Cavities of resin inlay group were luted with resin cement.
Group 3: Cavities of resin inlay group were luted with luting G-I cement.
Group 4: Cavities of resin inlay group were luted with resin cement after sandblasting.
Group 5: Cavities of resin inlay group were luted with luting G-I cement after sandblasting. All specimens were polished with same method and stored in normal saline for 24 hours before testing.
An Universal Testing machine(Mode No. AGS-100A, Shimadzu, Japan) was used to apply tensile loads in the vertical direction, and the force required for separation was recorded with a cross-head speed of 5mm/min and 100kg in full scale.
@ES The results were as follows:
@EN 1. The mean tensile bond strength was lowest in group luted with luting G-I cement, with measurements of 14.45±0.78(kg/cm*) and highest in group luted with resin cement after sandblasting, with measurements of 49.6±2.74(kg/cm*).
2. The tensile bond strength was greater in resin inlay groups luted with resin cement than in control group and resin inlay groups luted with luting G-I cement(P<0.05).
3. The tensile bond strength was lower in resin inlay groups luted with luting G-I cement than in control group(P<0.05).
4. The tensile bond strength was greater in resin inlay groups luted with resin cement or luting G-I cement after sandblasting than without that(P<0.05).
키워드
원문 및 링크아웃 정보
등재저널 정보