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The influence of verification jig on framework fit for nonsegmented fixed implant-supported complete denture
Carlo Ercoli1, Alessandro Geminiani, Changyong Feng
1Division of Prosthodontics, Eastman Institute for Oral Health, School of Medicine and Dentistry, University of Rochester, Rochester, NY 14620, USA. carlo_ercoli@urmc.rochester.edu
Clinical Implant Dentistry and Related Research
|December 20, 2011
Summary
Using a verification jig significantly improves the passive fit of implant-supported full-arch prosthesis frameworks. This dental technique ensures better outcomes for patients receiving fixed implant-supported complete dentures.
Area of Science:
- Dental Materials Science
- Prosthodontics
- Implant Dentistry
Background:
- Achieving passive fit in implant-supported full-arch prostheses is crucial for long-term success and patient comfort.
- Non-passive fit can lead to complications such as screw loosening, framework fracture, and peri-implantitis.
Purpose of the Study:
- To evaluate the impact of using a verification jig during the fabrication of implant-supported full-arch prosthesis frameworks.
- To determine if a verification jig influences the likelihood of achieving a passive fit.
Main Methods:
- Retrospective study of 30 edentulous patients receiving nonsegmented fixed implant-supported complete dentures.
- Patients were divided into two groups: fabrication with a verification jig (group J, n=16) and without (group NJ, n=14).
- Framework fit was assessed using clinical and radiographic methods during the try-in appointment.
Main Results:
- All frameworks fabricated with a verification jig (group J) demonstrated a clinically passive fit.
- Only two of the 14 frameworks fabricated without a verification jig (group NJ) exhibited passive fit.
- The difference in passive fit between the two groups was statistically significant (p < .001).
Conclusions:
- The use of a verification jig is a reliable method for ensuring a clinically passive fit of metal frameworks for nonsegmented fixed implant-supported complete dentures.
- Fabrication with a verification jig significantly enhances the predictability of achieving passive fit in these complex restorations.
