Comparative stress analysis and retention of (PEEK) versus (PEKK) Telescopic retained partial denture in Kennedy class I using strain gauge technology

Abstract

The study involved two routes in vivo and in vitro investigations conducted on partially edentulous maxillary arch representing Kennedy Class I classification (Bilateral free end saddle). Two materials used in construction of Telescopic Retained Removable Partial Denture were investigated; according to the material used they were classified into two groups Group (1): Telescopic Retained Removable Partial Denture was made from polyether-ketone-ketone (PEKK) framework. Group (2): Telescopic Retained Removable Partial Denture was made from polyether-ether-ketone (PEEK) framework. I. In vitro investigation The study was performed on six 3D experimental models simulating symmetrical Kennedy Class I with the first premolars the last standing abutments This involves evaluation of

A) Strain induced on the abutments. B) Retention Force of telescopic retained removable partial denture.

3D experimental models simulating symmetrical Kennedy Class I with the first premolars the last standing abutments, was designed by a Meshmixer program to have a periodontal space about 0.25mm was created around root of the abutments simulating the periodontal membrane space. Also 2mm thickness mucosal space at ridges and 1mm mucosal