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Related Experiment Videos

Adapting a dental surveyor to function in two planes

D L Johnson1

  • 1College of Dentistry, University of Oklahoma.

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
|September 1, 1993
PubMed
Summary

Retentive clasps on removable partial dentures need specific undercut locations to prevent dislodgement. A specially adapted dental surveyor aids in identifying these critical areas for improved denture stability.

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Area of Science:

  • Dental Prosthodontics
  • Biomaterials Science

Background:

  • Bilateral distal extension removable partial dentures often lack adequate guidance, leading to dislodgement.
  • Insufficient retentive clasp design compromises denture stability and patient function.

Purpose of the Study:

  • To describe a method for identifying optimal retentive clasp locations for bilateral distal extension removable partial dentures.
  • To enhance the stability and retention of removable partial dentures.

Main Methods:

  • Utilizing a dental surveyor adapted to function in two planes.
  • Identifying specific occlusogingival and mesiodistal undercuts for retentive clasp placement.
  • Describing the adaptation process and practical application of the modified dental surveyor.

Main Results:

  • The adapted dental surveyor effectively identifies critical undercut areas.
  • Precise clasp placement in identified undercuts significantly improves denture retention.
  • The described method provides a reproducible technique for enhancing denture stability.

Conclusions:

  • Optimal retentive clasp positioning is crucial for preventing dislodgement of distal extension removable partial dentures.
  • A two-plane adapted dental surveyor is a valuable tool for identifying these precise undercut locations.
  • This technique offers a practical solution to improve the functional performance of removable partial dentures.

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