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Treatment with removable partial dentures: a longitudinal study. Part I.

C Vanzeveren1, W D'Hoore, P Bercy

  • 1Department of Prosthetic Dentistry, Dental School, Université catholique de Louvain, Brussels, Belgium. vanzeveren@prdt.ucl.ac.be

Journal of Oral Rehabilitation
|May 20, 2003
PubMed
Summary
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Removable partial dentures (RPDs) made with cobalt-chromium frameworks show high patient satisfaction and wear rates. Mandibular RPDs with free-end saddles, particularly class I, experienced higher failure rates.

Area of Science:

  • Dental Prosthetics
  • Oral Rehabilitation
  • Biomaterials Science

Background:

  • Oral rehabilitation using removable partial dentures (RPDs) is a common dental procedure.
  • Cobalt-chromium frameworks are frequently utilized in RPD construction due to their strength and biocompatibility.
  • Evaluating the long-term effectiveness and patient satisfaction of RPDs is crucial for optimizing treatment outcomes.

Purpose of the Study:

  • To assess the clinical effectiveness and patient satisfaction of oral rehabilitation provided by removable partial dentures (RPDs).
  • To identify factors influencing RPD success rates, including anatomical location and denture design.
  • To analyze the longevity and reasons for failure of cobalt-chromium framework RPDs.

Main Methods:

  • A retrospective study involving 629 patients who received cobalt-chromium framework RPDs between 1983 and 1994.

Related Experiment Videos

  • Clinical examinations and data collection were conducted between 1998 and 2000, with 254 patients attending.
  • Statistical analysis using Mantel-Haenszel and Kaplan-Meier methods was employed to evaluate failure rates.

    • Main Results:

    • Of the 254 patients attending the recall, 218 (74.7%) were still wearing their RPDs.
    • Mandibular RPDs, especially those with free-end saddles (class I), showed significantly higher failure rates compared to maxillary RPDs.
    • Patients reported high satisfaction and continuous wear for most successfully retained RPDs.

    Conclusions:

    • Cobalt-chromium framework RPDs demonstrate generally satisfactory long-term outcomes and high patient acceptance.
    • Free-end saddle designs, particularly in the mandible, present a higher risk of failure and require careful consideration.
    • The study highlights the importance of patient-centered outcomes in evaluating the success of removable partial denture therapy.