ABSTRACT
The aim of this study is to evaluate bone loss around implants after delivery of implant supported over dentures using CBCT.This study was performed to evaluate Postoperative bone level around mandibular dental implants using cone beamcomputed tomography (CBCT). The study was conducted on 10 completely edentulous patients that were rehabilitated bycomplete overdentures Patients retained mandibular overdentures by two implants installed in the canine region andretained locator attachments. Standard clinical and laboratory techniques were followed for implant insertion and dentureconstruction for all patients. The implants were divided in two groups. Implants bearing locator attachment with blue nyloninsert (Group I) and implants bearing locator attachment with transparent nylon insert (Group II). The twenty insertedimplants were left undisturbed for three months to achieve osseointegration. The mesial, distal, buccal and lingual bonelevel around the dental implants was evaluated, using the CBCT i-CAT scan with Blue sky Plan® software. Bone level wasobtained at six and twelve months after loading. The CBCT measurements of bone level revealed that there was bone lossaround all aspects of the inserted twenty dental implants