Prosthetic and biological complications of implant-retained fixed versus removable telescopic overdentures: randomized controlled clinical trial

Abstract

Background/aim Implant-supported prostheses proved to solve a lot of problems and difficulties associated with edentulism, yet some complications continued to appear after using the different modalities of implant-supported prostheses, so this study aimed to count and analyze the possible prosthetic and biological complications of implant-retained fixed versus removable overdentures. Patients and methods The study was conducted on 22 completely edentulous patients selected from the Outpatient Clinic of Prosthodontic Department, Faculty of Oral & Dental Medicine, Badr University, Egypt. They were distributed randomly into two groups: group I received implant telescopic overdentures, group II received fixed detachable screw-retained implant-supported prostheses, and prosthetic and biological complications were evaluated after 1, 3, and 6 months. Results The present results indicated that Χ2 test was performed for significance evaluation between both groups in biological and prosthetic complications. In biological complications, it revealed a significant difference in relining after 6 months between both groups as P value less than 0.05. While for prosthetic complications, there was a significant difference between both groups in tooth wear and tooth separation after 6 months as P value less than 0.05. Conclusion Regarding prosthetic complications, telescopic overdenture showed a higher incidence than hybrid fixed screw-retained screw looseness and screw fracture. Regarding biological complications, telescopic overdenture showed the same incidence as hybrid fixed screw-retained implant looseness with a higher incidence of denture relining and lower incidence in peri-implant mucositis.

Keywords

• complications
• edentulous patients
• fixed screw-retained
• implant overdenture