시멘트 유지형 임플란트 지대주의 높이와 축면경사도가 보철물의 유지력에 미치는 영향
Effect of different abutment height and convergence taper on the retention of crowns cemented onto implant-supported prostheses
변태희, 김부섭, 정인성,
소속 상세정보
변태희 ( Byun Tae-Hee ) - 부산가톨릭대학교 보건과학대학원
김부섭 ( Kim Bu-Sob ) - 부산가톨릭대학교 보건과학대학 치기공학과
정인성 ( Chung In-Sung ) - 부산가톨릭대학교 보건과학대학 치기공학과
KMID : 0362120080300010057
Abstract
The purpose of this study was to ascertain the effect of different abutment height and different taper of abutment on retention force of cemented implant-supported prostheses. Test specimens consisted of different abutment height group(3mm, 4mm, 5mm, 6mm, 7mm) and different taper(degrees) abutment group(). The surfaces of abutments and crowns were manufactured and finished by automatic lathe(CNC). Luting cement(Tokuso Ionomer) was prepared according to the manufacturer’s instruction. And the cylinders were sealed onto the abutments and loaded in compression at 5kg for 10minutes. Excess cement was removed from the abutment-cylinder junction and the specimens were stored at room temparature for 24 hours. Specimens were tested in tension using a universal testing machine. Within the limits of this study, the following conclusions were drawn: 1. The increase in abutment height result in improvement in retention strength(P<0.05). 2. The increase in taper of abutment result in decrease in retention strength(P<0.05). 3. The decrease in abutment height result in decrease in retention strength, besides has a significantly lower retention strength at 3mm abutment height. 4. The increase in taper of abutment result in decrease in retention strength, besides has a significantly lower retention strength at abutment.in decrease in retention strength, besides has a significantly lower retention strength at 7° abutment.
키워드
abutment height;cemented implant-supported prostheses;retentive force;taper of abutment
원문 및 링크아웃 정보
등재저널 정보