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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 제4호
- 발행연도
- 2015.1
- 수록면
- 323 - 328 (6page)
이용수
초록· 키워드
오류제보하기
PURPOSE. This in-vitro study was designed to evaluate retention forces, microleakage and plastic deformation of a prefabricated 2-implant bar attachment system (SFI-Bar, Cendres+Métaux, Switzerland). MATERIALS AND METHODS. Two SFI implant-adapters were torqued with 35 Ncm into two implant analogues. Before the tube bars were finally sealed, the inner cavity of the tube bar was filled with liquid red dye to evaluate microleakage. As tube bar sealing agents three different materials were used (AGC Cem (AGC, resin based), Cervitec Plus (CP; varnish) and Gapseal (GS; silicone based). Four groups with eight specimens each were tested (GS, GS+AGC, AGC, CP). For cyclic loading, the attachment system was assembled parallel to the female counterparts in a chewing simulator. The mean retention forces of the initial and final ten cycles were statistically evaluated (ANOVA, α≤.05). RESULTS. All groups showed a significant loss of retention forces. Their means differed between 30-39 N initially and 22-28 N after 50,000 loading cycles. No significant statistical differences could be found between the groups at the beginning (P=.224), at the end (P=.257) or between the loss of retention forces (P=.288). Microleakage occurred initially only in some groups but after 10,000 loading cycles all groupsexhibited microleakage. CONCLUSION. Long-term retention forces of the SFI-Bar remained above 20 N which can be considered clinically sufficient. The sealing agents in this study are not suitable to prevent microleakage.
목차
등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
Albrecht D / 2015 / Space requirement of a prefabricated bar on two interforaminal implants: a prospective clinical study / Clin Oral Implants Res 26 : 143 ~ 148
Bayer S / 2007 / Investigation of the wear of prefabricated attachments--an in vitro study of retention forces and fitting tolerances / Quintessence Int 38 : e229 ~ e237
Bergendal T / 1998 / Implant-supported overdentures: a longitudinal prospective study / Int J Oral Maxillofac Implants 13 : 253 ~ 262
Deslis A / 2012 / Numerical investigations of the loading behaviour of a prefabricated non-rigid bar system / Ann Anat 194 : 538 ~ 544
Dudic A / 2002 / Retention mechanisms and prosthetic complications of implant-supported mandibular overdentures:long-term results / Clin Implant Dent Relat Res 4 : 212 ~ 219
Bayer S / 2007 / Investigation of the wear of prefabricated attachments--an in vitro study of retention forces and fitting tolerances / Quintessence Int 38 : e229 ~ e237
Bergendal T / 1998 / Implant-supported overdentures: a longitudinal prospective study / Int J Oral Maxillofac Implants 13 : 253 ~ 262
Deslis A / 2012 / Numerical investigations of the loading behaviour of a prefabricated non-rigid bar system / Ann Anat 194 : 538 ~ 544
Dudic A / 2002 / Retention mechanisms and prosthetic complications of implant-supported mandibular overdentures:long-term results / Clin Implant Dent Relat Res 4 : 212 ~ 219
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