|Clinical longevity of removable partial dentures retained by telescopic crowns: outcome of the double crown with clearance fit.|
|PMID: 11484566 Owner: NLM Status: MEDLINE|
|PURPOSE: It was the aim of this study to investigate the long-term success of a telescopic crown system that can be used for both rigid and resilient support and to evaluate by means of a literature review whether the use of resilient support may be advantageous compared to other double crown systems when the restoration is placed on only a few remaining teeth. MATERIALS AND METHODS: Patient records were used to evaluate 125 dentures (with 460 abutment teeth) based on the Marburg double crown system. The loss of abutment teeth, endodontic treatment, and fracture of the metallic framework were investigated with regard to the different types of denture support. RESULTS: The probability that a patient would have kept all abutment teeth was 84% after 5 years and 66% after 10 years. No significant differences were found for the two groups "resilient support" (< or = three abutment teeth) and "rigid support" (> or = four abutment teeth). For abutment teeth with a double crown with clearance fit, the risk of loss was 4% after 5 years and 15% after 10 years for rigid support, and 10% and 24%, respectively, for resilient support. The risk of endodontic treatment was 7% after 5 years and 9% after 10 years for rigid support, and 3% and 7%, respectively, for resilient support. None of the denture frameworks showed a fracture during the observation period. CONCLUSION: Removable partial dentures retained by double crowns with clearance fit and constructed without major or minor connectors provide good clinical longevity. The survival rates of abutment teeth were comparable to those reported in the literature for other double crown systems. There was no significant increase of the risk of abutment loss when the restoration was placed on three or fewer remaining teeth and the concept of resilient support was applied.|
|H J Wenz; K Hertrampf; K M Lehmann|
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|Type: Comparative Study; Journal Article|
|Title: The International journal of prosthodontics Volume: 14 ISSN: 0893-2174 ISO Abbreviation: Int J Prosthodont Publication Date: 2001 May-Jun|
|Created Date: 2001-08-03 Completed Date: 2001-12-14 Revised Date: 2007-11-15|
Medline Journal Info:
|Nlm Unique ID: 8900938 Medline TA: Int J Prosthodont Country: United States|
|Languages: eng Pagination: 207-13 Citation Subset: D|
|Department of Preclinical and Maxillofacial Prosthodontics, Marburg School of Dental Medicine, Philipps University, Marburg, Germany. email@example.com|
|APA/MLA Format Download EndNote Download BibTex|
Aged, 80 and over
Dental Prosthesis Design
Dental Restoration Failure
Denture, Partial, Removable*
Root Canal Therapy
Statistics as Topic
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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