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Cast metal bars used for laboratory processing of bar-supported prostheses
1Department of Prosthodontics, David Grant U.S.A.F. Medical Center, Travis Air Force Base, Calif.
The Journal of Prosthetic Dentistry
|December 1, 1993
Summary
This study introduces a method using cast metal bars in master casts for stronger, more accurate dental prostheses. It simplifies processing, rebasing, relining, and repairs for removable bar-supported prostheses.
Area of Science:
- Dental Prosthodontics
- Materials Science in Dentistry
Background:
- Removable bar-supported prostheses require precise fabrication for function and longevity.
- Challenges exist in maintaining accuracy during processing, rebasing, relining, and repair procedures.
Purpose of the Study:
- To present a technique utilizing cast metal bars within the master cast.
- To enhance the strength, accuracy, and processing reliability of bar-supported removable prostheses.
Main Methods:
- Incorporation of cast metal bars directly into the master cast during the fabrication process.
- Utilizing this integrated cast for subsequent procedures like processing, rebasing, relining, and repairs.
Main Results:
- The method ensures enhanced cast strength and dimensional accuracy.
- Improved reliability in processing, rebasing, relining, and repair of prostheses was observed.
- The technique was found to be straightforward to implement.
Conclusions:
- The use of cast metal bars in master casts is an effective strategy for improving the fabrication and maintenance of bar-supported removable prostheses.
- This approach offers a reliable and accessible method for ensuring precision in dental prosthetic procedures.