<p>Distal Extension Denture – Case Report and Overview</p>

Abstract

Replacing missing teeth distal to the last standing teeth with removable partial dentures poses considerable challenge to dentists. However, the insertion of implants turns a free-end saddle into a bounded saddle. Still, patients may not be able to accept implant insertions due to financial reasons, systemic medical conditions, local anatomical factors or complicated treatments involving surgery. Hence, patients with missing teeth often prefer to use removable partial dentures to improve their dental aesthetics and to restore their oral function. In this article, we use a clinical case to illustrate the clinical procedures required for the fabrication of a distal extension denture with good retention, support, stability, aesthetics and masticatory function. We also review the design for a clasp assembly on the abutment adjacent to the distal edentulous ridge.

A study from a case report on the basic concept and design of removable partial dentures: Support and bracing considerations

“…To minimize the impact of occlusal loading on the abutment teeth caused by the pressure exerted on the denture base during function, it is necessary to minimize soft tissue displacement beneath the denture base during occlusion and reduce the difference between tissue displacement under the denture base and the abutment teeth [17,18]. By minimizing displacement, simultaneous occlusal contact between the denture base and the abutment teeth can be achieved during function [6,7,[19][20][21] (Fig. 6).…”

“…For this purpose, it is clinically important to compensate for the difference in pressure displacement between the abutment tooth and the alveolar ridge mucosa by using functional impression method during the fabrication of removable partial denture. As a result, it is possible to disperse the functional occlusal force so that the transmission direction during function is in the axial direction of the abutment tooth and the vertical to the alveolar ridge mucosa [19][20][21].…”