Effect of Different Framework Materials on the Supporting Structures of Mandibular Kennedy Class II Removable Partial Dentures

Abstract

This study was conducted to assess the effect of flexible thermoplastic partial dentures on the supporting structures in patients exhibiting lower Kennedy class II cases. Fourteen partially edentulous patients were precisely selected to avoid factors that may adversely affect the results of this study. Removable partial dentures were constructed for all patients following the same procedures and the same design, the components of the denture were combined denture base lingual bar as major connector, double Aker clasp on the first and second molars on the intact side, gingivally approaching clasp (RPI) on the last standing abutment on the edentulous side, cingulum rest was used as indirect retainer on the canine on the intact side, according to the framework material the selected patients were randomly divided into two equal groups: Group I: For Patients of this group partial denture metal framework was constructed using chromium cobalt alloy. Group II: For Patients of this group partial denture metal free framework was constructed using acetal resin thermoplastic material The effect of each framework material on the supporting