"Influence of Implant Diameter on The Primary Stability in Implant Retained Mandibular Overdenture” (In Vivo Study)

Abstract

This in- vivo study was carried out to evaluate the correlation between implant diameter and primary implant stability in implant retained mandibular overdenture by using OSSTELL®. Twenty one completely edentulous patients were selected from the outpatient clinic, Removable prosthodontics Department, Faculty of Dentistry, Ain Shams University to participate in this study. Patients were precisely selected and thoroughly examined in an attempt to reduce human variables and eliminate any factor that might adversely affect the success of this treatment modality. A pre-operative Computed tomography (CT) was utilized in this study to evaluate alveolar bone height, width and density. All patients were rehabilitated by mandibular implant retained overdenture by two implants installed in the canine region. The length of the implant used was 10 mm.Patients were randomly divided into three equal groups according to the diameter of the implant placed: Group (A): patients were rehabilitated by mandibular two implants retained overdenture with 3mm in diameter. Group (B): patients were rehabilitated by mandibular two implants retained overdenture with 3.5 mm in diameter. Group(C): Seven patients were rehabilitated by mandibular two implants retained overdenture with 4mm in diameter.