J Korean Acad Prosthodont.
2003 Dec;41(6):714-719.
Cause of technical failures of conical crown-retained denture (CCRD): a clinical report
- Affiliations
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- 1Department of prosthodontics and research institute of oral science, College of dentistry, Kangnung National University.
Abstract
- Conical crown-retained denture (CCRD) has been used as a very effective treatment method in cases with few remaining teeth with heterogeneous prognosis. However, in spite of many advantages of CCRD, high technical failure rate was a problem to be considered. Incorrect path of insertion and excessive retention were thought to be the main cause of technical failure and to result from laboratory procedure with a coping misfit and/or a coping transfer error. In order to prevent this error, secure anchoring of inner coping and re-examination and milling of convergence angle were recommended on the master model from pick-up impression.
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