Article

Indexing procedures for converting removable partial dentures after extractions while the patient retains the prosthesis

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Abstract

A new indexing procedure is described for the conversion of removable partial dentures when extraction of additional teeth is planned. Advantages and disadvantages of the indexing procedure are reviewed and compared with traditional treatment options. The new procedure facilitates the use of dental laboratory expertise and facilities and allows the patient to retain the prosthesis throughout the process. A component that includes teeth, denture base segments, and wire or cast clasps is created by the laboratory and attached by the dentist during the extraction visit as a simple denture repair procedure. The procedure can also be used to convert an existing partial denture to an immediate complete denture. Required clinical and laboratory procedures are described.

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... Some authors have described techniques to plan for lost teeth in the design of metal frameworks, whereas others have demonstrated methods to alter frameworks after the loss of abutment teeth. [6][7][8] Although it is not difficult to plan for the loss of a distal molar, the unexpected loss of an anterior abutment or multiple teeth may jeopardize the prosthesis effectiveness. 9 One alternative is to fabricate the tooth-frame assembly components individually and to join them during the acrylic resin processing procedure. ...
Article
The treatment alternative described maximizes the benefit of remaining teeth while allowing simplified alteration of the prosthesis if abutments are lost during the life span of the removable partial denture (RPD). A conversion partial is an RPD whose tooth-frame assembly components are individually fabricated and then joined with an acrylic resin major connector. The conversion RPD optimizes retention and stabilization of a terminal dentition and can be easily converted to an immediate complete denture.
... Some authors have described techniques to plan for lost teeth in the design of metal frameworks, whereas others have demonstrated methods to alter frameworks after the loss of abutment teeth. [6][7][8] Although it is not difficult to plan for the loss of a distal molar, the unexpected loss of an anterior abutment or multiple teeth may jeopardize the prosthesis effectiveness. 9 One alternative is to fabricate the tooth-frame assembly components individually and to join them during the acrylic resin processing procedure. ...
Article
The treatment alternative described maximizes the benefit of remaining teeth while allowing simplified alteration of the prosthesis if abutments are lost during the life span of the removable partial denture (RPD). A conversion partial is an RPD whose tooth-frame assembly components are individually fabricated and then joined with an acrylic resin major connector. The conversion RPD optimizes retention and stabilization of a terminal dentition and can be easily converted to an immediate complete denture.
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Article
A technique is described that allows a removable partial denture with a broken clasp or a removable partial denture in which an abutment has been extracted to be restored by the reattachment of a new cast clasp component or a complete surveyed clasp assembly. The technique is applicable to most clasp designs and can include attachment to the acrylic denture base or the metal major connector. The technique is distinguished from other repair techniques by (1) providing a cast clasp replacement, (2) allowing the patient to retain the prosthesis during the repair, (3) generating a precisely formed surveyed clasp assembly by the laboratory, and (4) including an efficient transfer mechanism for the precision clasp created in the laboratory to be attached to the removable partial denture in the dental office. A two-step impression procedure is used to ensure proper relation of the partial denture to the abutments.