The Influence of Verification Jig on Framework Fit for Nonsegmented Fixed Implant-Supported Complete Denture

被引:41
作者
Ercoli, Carlo [1 ]
Geminiani, Alessandro [2 ]
Feng, Changyong [3 ]
Lee, Heeje [1 ]
机构
[1] Univ Rochester, Div Prosthodont, Eastman Inst Oral Hlth, Sch Med & Dent, Rochester, NY 14620 USA
[2] Univ Rochester, Div Periodont, Eastman Inst Oral Hlth, Sch Med & Dent, Rochester, NY 14620 USA
[3] Univ Rochester, Dept Biostat & Computat Biol, Rochester, NY 14620 USA
关键词
computer aided prosthetic designs; dental casting technique; instrumentation; dental implants; dental prosthesis; dental prosthesis design; methods; implant-supported; implants restoration; IMPRESSION TECHNIQUES; DENTAL IMPLANTS; PROSTHESES; ACCURACY; BONE; SYSTEM; CAST;
D O I
10.1111/j.1708-8208.2011.00425.x
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Purpose: The purpose of this retrospective study was to assess if there was a difference in the likelihood of achieving passive fit when an implant-supported full-arch prosthesis framework is fabricated with or without the aid of a verification jig. Materials and Methods: This investigation was approved by the University of Rochester Research Subject Review Board (protocol #RSRB00038482). Thirty edentulous patients, 49 to 73 years old (mean 61 years old), rehabilitated with a nonsegmented fixed implant-supported complete denture were included in the study. During the restorative process, final impressions were made using the pickup impression technique and elastomeric impression materials. For 16 patients, a verification jig was made (group J), while for the remaining 14 patients, a verification jig was not used (group NJ) and the framework was fabricated directly on the master cast. During the framework try-in appointment, the fit was assessed by clinical (Sheffield test) and radiographic inspection and recorded as passive or nonpassive. Results: When a verification jig was used (group J, n = 16), all frameworks exhibited clinically passive fit, while when a verification jig was not used (group NJ, n = 14), only two frameworks fit. This difference was statistically significant (p < .001). Conclusions: Within the limitations of this retrospective study, the fabrication of a verification jig ensured clinically passive fit of metal frameworks in nonsegmented fixed implant-supported complete denture.
引用
收藏
页码:e188 / e195
页数:8
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