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O-ring coping attachments for removable partial dentures

M W Lee1, L Baum, B Pence

  • 1International Dentist Program, Loma Linda University School of Dentistry, Calif., USA.

The Journal of Prosthetic Dentistry
|September 1, 1995
PubMed
Summary
This summary is machine-generated.

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The O-ring coping attachment offers a practical and affordable solution for removable partial dentures, providing controllable retention and shock absorption. This innovative design ensures long-term prosthesis stability through simple O-ring replacement, enhancing patient acceptance in prosthodontics.

Area of Science:

  • Dentistry
  • Prosthodontics
  • Biomaterials

Background:

  • Removable partial dentures require reliable retention systems.
  • Telescopic crown-and-sleeve retainers are a common prosthetic solution.
  • Existing systems may present challenges in retention control and patient comfort.

Purpose of the Study:

  • To evaluate the clinical practicability of the O-ring coping attachment for removable partial dentures.
  • To assess the retention capabilities and shock-absorbing properties of the O-ring system.
  • To determine the long-term efficacy and patient acceptance of this prosthetic design.

Main Methods:

  • A modified O-ring coping attachment was integrated into telescopic crown-and-sleeve retainers.
  • A circumferential groove in the primary coping houses an elastomeric O-ring.

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  • The O-ring engages a corresponding groove within the telescopic crown for retention.

    • Main Results:

    • The O-ring coping attachment demonstrated clinical practicability over 9 years.
    • The system provides controllable retention and functions as a shock absorber.
    • Long-term prosthesis retention is maintained via periodic O-ring replacement.
    • The fabrication process is not complex and does not require expensive machinery.

    Conclusions:

    • The O-ring coping attachment is a versatile and effective system for removable partial prosthodontics.
    • Its ease of maintenance and excellent patient acceptance contribute to its success.
    • This design offers a cost-effective and reliable solution for denture retention.