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Related Experiment Videos

Precision attachment retained removable partial dentures: 1. Technical long-term study.

B Owall1

  • 1Department of Prosthetic Dentistry and Stomatognathic Physiology, Royal Dental College, Aarhus C, Denmark.

The International Journal of Prosthodontics
|May 1, 1991
PubMed
Summary
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This study followed patients with removable partial dentures for up to 25 years. Failures mainly affected the fixed prostheses, impacting the long-term success of dental restorations.

Area of Science:

  • Dentistry
  • Prosthodontics
  • Dental Materials

Background:

  • Distal extension-base removable partial dentures (RPDs) are used to replace missing teeth.
  • Rigid intracoronal slide attachments offer a retentive option for RPDs.
  • Combined fixed-removable prostheses have been utilized for complex dental rehabilitation.

Purpose of the Study:

  • To evaluate the long-term clinical performance and survival of distal extension-base RPDs with rigid intracoronal slide attachments.
  • To identify failure modes and complications associated with this treatment modality.
  • To assess the longevity of fixed partial dentures (FPDs) when used in conjunction with RPDs.

Main Methods:

  • A retrospective study of 53 patients receiving distal extension-base RPDs with rigid intracoronal slide attachments.

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  • Follow-up period extended up to 25 years.
  • Documentation of complications, need for relining, and overall prosthesis survival.

    • Main Results:

    • Removable partial dentures demonstrated minimal complications and infrequent relining needs.
    • Failures were predominantly associated with the co-existing fixed partial dentures.
    • Technical complications with FPDs led to complete denture conversion in seven arches (five patients).
    • Common FPD issues included cement failures, root fractures, and prosthesis fractures.

    Conclusions:

    • Distal extension-base RPDs with rigid intracoronal slide attachments exhibit favorable outcomes regarding the removable component.
    • The long-term success of combined fixed-removable prostheses is significantly influenced by the durability of the fixed components.
    • Further research into improving the longevity of fixed partial dentures in such combined treatments is warranted.