Single Versus Two Dental Implant Retained Mandibular Overdenture: Study Protocol for a Randomized Controlled Trial

Background: The consensus is that the standard treatment of choice for the edentulous mandible should be a two implant retained mandibular overdenture. Some clinicians have tried single median implant to retain the mandibular overdenture, however, there is lack of scientific information with single implant retained mandibular overdenture. Therefore the purpose of the current randomized clinical trial is to test the hypothesis that a single median implant in edentulous mandible will result in a clinical outcome comparable to two implants.