Comparison of Clinical and Radiographic Outcomes Between Single Symphyseal and Parasymphyseal Implants Versus Two Implant-Assisted Complete Mandibular Overdentures.

Purpose: This study aimed to compare the efficacy of single implants in the symphyseal and parasymphyseal regions with that of two implants in complete mandibular overdentures.

Patients And Methods: Fifteen completely edentulous male patients (50-65 years) were chosen and randomly grouped into three equal groups (five patients in each) according to the position and number of the received implants to assist mandibular complete overdentures: group I: single median implant; group II: single parasymphyseal implant; and group III: two implants were inserted in the canine area bilaterally. After three months of osseointegration, the lower denture was transformed into an implant-assisted complete mandibular overdenture.