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Case Reports
, 5 (3), 331-6

Use of an Implant O-Ring Attachment for the Tooth Supported Mandibular Overdenture: A Clinical Report

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Case Reports

Use of an Implant O-Ring Attachment for the Tooth Supported Mandibular Overdenture: A Clinical Report

Satyabodh S Guttal et al. Eur J Dent.

Abstract

Retention of a mandibular denture can be achieved by an implant-retained or natural tooth-retained bar and stud attachment in the anterior segment of the mandible. The same design principles holds true for both implant-retained and tooth-retained methods of anchoring the bar and stud attachment. A simple and cost effective treatment for more complex implant overdenture is the concept of conventional tooth-retained overdentures. When few firm teeth still remain in a compromised dentition, preservation of these teeth for overdentures can improve retention and stability. The authors present a clinical report of a patient treated with a mandibular tooth-borne overdenture with bar and O-ring attachment. A splinted bar supported the prosthesis and an O-ring retained the denture.

Keywords: Implant; Overdenture; Retention.

Figures

Figure 1.
Figure 1.
Image of patient’s remaining firm teeth.
Figure 2.
Figure 2.
Rubber base impression after tooth preparation for bar framework fabrication.
Figure 3.
Figure 3.
O-ring attachment system with duplicated pattern resin post in putty index.
Figure 4.
Figure 4.
Metal O-ring fitting well to the resin post.
Figure 5.
Figure 5.
Wax pattern of the bar framework with the duplicated resin studs attached.
Figure 6.
Figure 6.
Cemented bar framework.
Figure 7.
Figure 7.
Final impression for the denture fabrication.
Figure 8.
Figure 8.
Wax elimination complete and the O-rings placed on the laboratory analogues.
Figure 9.
Figure 9.
Tissue surface of the denture showing the embedded female attachments.
Figure 10.
Figure 10.
Prosthesis in-situ.
Figure 11.
Figure 11.
Post operative OPG.

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