The Effect Of Using DifferentDirect Retainers On The Principal Abutment In Kennedy Class I Supported Distally By Dental Implant

Abstract

To compare between occlusally approaching clasp, gingivally approaching clasp and wrought wire clasp as a direct retainers for partially edentulous model for lower Kennedy class I was used with using dental implant distally. Upon which two skeletons were constructed. The components of the two skeletons were the same expect the direct retainer which was, occlusally approaching clasp for the first skeleton, gingivally approaching clasp for the second skeleton which will replaced by the wrought wire clasp. Strain gauge analysis method was used to carry out this study. Static vertical tissue ward load of 10kg (100N) was applied on the abutment teeth on the both side. The stress induced in the abutment teeth were recorded in each simulation. The data were collected and tabulated to compare between the three clasp systems tasted in this study. The results revealed that no difference was found between occlusally approaching clasp, gingivally approaching clasp and wrought wire clasp regarding the stress induced in the abutment teeth.