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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제7권 제3호
- 발행연도
- 2015.1
- 수록면
- 207 - 213 (7page)
이용수
초록· 키워드
오류제보하기
PURPOSE. The purpose of this study was to examine the abutment screw stability of screw- and cement-retained implant-supported dental prosthesis (SCP) after simulated cement washout as well as the stability of SCP cements after complete loosening of abutment screws. MATERIALS AND METHODS. Thirty-six titanium CAD/CAM-made implant prostheses were fabricated on two implants placed in the resin models. Each prosthesis is a two-unit SCP: one screw-retained and the other cemented. After evaluating the passive fit of each prosthesis, all implant prostheses were randomly divided into 3 groups: screwed and cemented SCP (Control), screwed and noncemented SCP (Group 1), unscrewed and cemented SCP (Group 2). Each prosthesis in Control and Group 1 was screwed and/or cemented, and the preloading reverse torque value (RTV) was evaluated. SCP in Group 2 was screwed and cemented, and then unscrewed (RTV=0) after the cement was set. After cyclic loading was applied, the postloading RTV was measured. RTV loss and decementation ratios were calculated for statistical analysis. RESULTS. There was no significant difference in RTV loss ratio between Control and Group 1 (P=.16). No decemented prosthesis was found among Control and Group 2. CONCLUSION. Within the limits of this in vitro study, the stabilities of SCP abutment screws and cement were not significantly changed after simulated cement washout or screw loosening.
목차
등록된 정보가 없습니다.
참고문헌 (23)
참고문헌 신청
[학술지(정기간행물)
Cantwell A / 2004 / Preload loss in gold prosthesis-retaining screws as a function of time / Int J Oral Maxillofac Implants 19 : 124 ~ 132
Chee W / 1999 / Cemented versus screw-retained implant prostheses: which is better? / Int J Oral Maxillofac Implants 14 : 137 ~ 141
Clausen GF / 1995 / The lingual locking screw for implant-retained restorations-aesthetics and retrievability / Aust Prosthodont J 9 : 17 ~ 20
Guichet DL / 2000 / Passivity of fit and marginal opening in screw- or cement-retained implant fixed partial denture designs / Int J Oral Maxillofac Implants 15 : 239 ~ 246
Cantwell A / 2004 / Preload loss in gold prosthesis-retaining screws as a function of time / Int J Oral Maxillofac Implants 19 : 124 ~ 132
Chee W / 1999 / Cemented versus screw-retained implant prostheses: which is better? / Int J Oral Maxillofac Implants 14 : 137 ~ 141
Clausen GF / 1995 / The lingual locking screw for implant-retained restorations-aesthetics and retrievability / Aust Prosthodont J 9 : 17 ~ 20
Guichet DL / 2000 / Passivity of fit and marginal opening in screw- or cement-retained implant fixed partial denture designs / Int J Oral Maxillofac Implants 15 : 239 ~ 246
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