Effect of Implant Distribution and Diameter On its Supporting Structures of Mandibular Overdenture

Abstract

Fourteen completely edentulous patients were selected from the outpatient clinic, Prosthodontic 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 results of this study. Patients were rehabilitated by mucosa supported maxillary complete denture and implant retained mandibular overdenture. Standard clinical and laboratory techniques were followed for denture construction for all patients. Patients participating in this study were evaluated by cone beam computed tomography then randomly classified into two equal groups according to the position and diameter of implants used into; Group I: Patients were rehabilitated by implant retained mandibular overdentures by 4 mini dental implants installed in the interforaminal area. Group II: Patients were rehabilitated by implant retained mandibular overdenture by 2 mini dental implants installed in the lateral incisor/canine area and 2 short implants installed posterior in the first molar area. Surgical installation of the implant was performed under strict aseptic conditions then early loading protocol for patients of groupI and delayed loading for patients of group II was followed.