The Employment of CBCT in Assessing Bone Loss around Dental Implants in Patients Receiving Mandibular Implant Supported over dentures

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 beam computed tomography (CBCT). The study was conducted on 10 completely edentulous patients that were rehabilitated by complete overdentures Patients retained mandibular overdentures by two implants installed in the canine region and retained locator attachments. Standard clinical and laboratory techniques were followed for implant insertion and denture construction for all patients. The implants were divided in two groups. Implants bearing locator attachment with blue nylon insert (Group I) and implants bearing locator attachment with transparent nylon insert (Group II). The twenty inserted implants were left undisturbed for three months to achieve osseointegration. The mesial, distal, buccal and lingual bone level around the dental implants was evaluated, using the CBCT i-CAT scan with Blue sky Plan (R) software. Bone level was obtained at six and twelve months after loading. The CBCT measurements of bone level revealed that there was bone loss around all aspects of the inserted twenty dental implants.