| Longevity of frictional telescopic crowns in the severely reduced dentition: 3-year results of a longitudinal prospective clinical study. | |
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MedLine Citation:
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PMID: 20806099 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: The longevity of frictional telescopic crowns (FTC) in severely reduced dentitions with 1 to 3 remaining teeth per jaw has not yet been studied prospectively and exclusively. Aims of this study were to estimate risks of telescope loss and abutment tooth loss and to determine abutment tooth mobility over time. METHOD AND MATERIALS: A total of 74 patients with severely reduced dentitions received 82 telescopic removable partial dentures (TRPDs) retained with 173 FTCs. Dentures were reexamined after 1 week and 3, 6, 12, 18, 24, 30, and 36 months. Tooth mobility was monitored with Periotest values. Adjuvant therapies were carried out if necessary. Survival probabilities of telescopes and abutment teeth as well as the influence of clinical factors (age, sex, jaw, vitality, opposing dentition, axis inclination, end Periotest value, crown length, crown margin quality, wearing mode, tooth types, abutment distribution, number of telescopes) were calculated with Kaplan-Meier estimators. The relative risks for telescope loss were calculated with Cox regression. RESULTS: The survival rate was 93.9% for abutment teeth and 87.5% for telescopes. Number of telescopes, abutment distribution, vitality, and gender as factors influenced the survival rates (Kaplan-Meier). In combination with the jaw as a factor, these affected the risk for telescope loss (Cox regression). Periotest values (mean of abutment teeth per examination) decreased significantly (P < .0001). Altogether, 11% of teeth fractured and 4.6% of teeth were extracted. Patients were mostly very satisfied. CONCLUSION: TRPDs proved to be a favorable treatment concept for severely reduced dentitions. FTCs can be considered as elements with a good benefit-maintenance relation. A general increase of abutment tooth mobility could not be verified. |
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Authors:
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Viola Szentpétery; Christine Lautenschläger; Jürgen M Setz |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Quintessence international (Berlin, Germany : 1985) Volume: 41 ISSN: 1936-7163 ISO Abbreviation: Quintessence Int Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-08-31 Completed Date: 2010-12-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0342677 Medline TA: Quintessence Int Country: Germany |
Other Details:
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Languages: eng Pagination: 749-58 Citation Subset: D |
Affiliation:
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Department of Prosthodontics, Martin-Luther-University Halle-Wittenberg, Halle, Germany. viola.szentpetery@medizin.uni-halle.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Age Factors Aged Aged, 80 and over Crowns* Dental Abutments* Dental Arch / pathology Dental Restoration Failure Denture Design Denture, Overlay* Denture, Partial, Removable* Female Follow-Up Studies Friction Humans Jaw, Edentulous, Partially / classification, rehabilitation Longitudinal Studies Male Mandible / pathology Maxilla / pathology Middle Aged Patient Satisfaction Prospective Studies Risk Factors Sex Factors Survival Analysis Tooth Extraction Tooth Fractures / etiology Tooth Mobility / etiology |
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