Prosthodontic Research & Practice
Print ISSN : 1347-7021
Original Research
Use of Magnetic Attachments in Dentures : Analysis of an 8-year Longitudinal Study
Hisako OkudaHiroyuki OkudaTeruta MaedaHiroshi InoueAkira KawanoYasuo UnezakiKoh-ichi Kuremoto
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JOURNAL FREE ACCESS

2004 Volume 3 Issue 1 Pages 8-14

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Abstract
Purpose : Magnetic attachments are available for various prosthodontic applications. However, several problems have been noted over the past few years as their use has increased. In this study, the challenges associated with magnetic attachments in prosthodontics are summarized, based on data collected over an 8-year period.
Materials and Methods : Seventy-seven patients with overdentures and magnetic attachments were observed from November 1992 to August 2000 at Osaka Dental University Hospital. The relationship between the occurrence of problems and time was analyzed through the use of the Kaplan-Meier survival analysis. The prognostic factors were classified into two categories : complete vs. partial dentures, and conventional dentures vs. dentures for resected jaws, which were the compared using the Log rank test at a significance level of 0.05.
Results : Problems were noted for 37.1% of the abutment teeth and 30.6% of denture bases. The overdentures placed in cases where jaws had been resected for tumor removal performed significantly worse than conventional overdentures.
Conclusion : Magnetic attachments might help to improve denture retention, except for cases where jaws have been resected.
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© 2004 by Japan Prosthodontic Society
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