단일구조 지르코니아(zirconia) 전부도재관의 표면처리에 따른 전장도재와의 전단결합강도
Effect of surface treatments on the shear bond strength of full-contour zirconia layered with porcelain
최병환, 김임선,
소속 상세정보
최병환 ( Choi Byung-Hwan ) - 대구보건대학교 치기공과
김임선 ( Kim Im-Sun ) - 대구보건대학교 치기공과
KMID : 0362120130350020121
Abstract
Purpose: The aim of this research was to investigate difference in shear bond strengths of full-contour zirconia layered with porcelain.
Methods: Disk-shaped (diameter: 12.0mm; height:3.0mm) zirconia were randomly divided into six groups according to the surface conditioning method to be applied (N=90, n=15 per group): group 1-contol group(ZC); group 2- airborne particle abrasion with 50-um Al2O3(5A); group 3-50-um Al2O3 + liner(5AL), group 4-110-um Al2O3(1A); group 5-110-um Al2O3 + liner(1AL); group 6-liner(LC). On each block, zirconia porcelain was build up according to manufacturer’s instructions. All samples were fixed with measuring jigs and shear bond strength were measured with Universal testing machine. Collected data were analyzed using SPSS(Statistical Package for Social Sciences) Win 12.0 statistics program.
Results: LC showed the highest value(29.92±2.55 MPa) and ZC showed the lowest value(13.22±1.37 MPa). Zirconia liner and Alumina oxide groups was significantly higher shear bond strength than control(p<0.05). 5A (without liner 22.18±2.37, with liner 22.84±1.74 MPa) was higher shear bond strength than 110 (without liner 20.18±2.38, with 20.71±2.67).
Conclusion: Surface treatments may have advantage in bond strength improvement for full-contour zirconia layered with porcelain.
키워드
surface treatments; shear bond strength; zirconia;porcelain
원문 및 링크아웃 정보
등재저널 정보