Problems with prostheses on implants: A retrospective study

Technical complications with implant-supported dental prostheses

“…Problems such as loosening, loss or fracture of retention clips constitute the main reasons for overdenture repairs (2). Wear or fracture of the ball-type abutment seems to be less frequent, but the replacement of rubber O-rings is recommended every one or two years, depending on the number of implants.…”

“…Design characteristics of the prostheses and implants, the materials employed and biomechanical issues all exert an important influence on the outcome of these prostheses (1). The main technical complications occurring with implant-supported prostheses, which can lead to failure or the need for repairs, are screw fracture, screw loss, loss of resin covering the screw, fracture of the metallic, resin or porcelain structure and loss of overdenture retention (2)(3)(4)(5)(6).…”

“…While the literature reports that implant-supported prostheses constitute a safe, predictable treatment method with high success rate, technical and biological complications can occur (2,5,7). However, there is no consensus in the dental literature on the different types of complications found in implant-supported prostheses.…”

A comparison of the masticatory function between two different types of implant supported prostheses and complete denture for fully edentulous patients

“…11 However, there are few studies comparing bite force and masticatory performance of implant prostheses with a supporting number of implants and prosthesis material. Moreover, implant therapy outcomes have been reported largely in terms of implant survival rates and on the durability of prosthesis components.…”

“…Moreover, implant therapy outcomes have been reported largely in terms of implant survival rates and on the durability of prosthesis components. 11,12 Scant attention has been given to patient-based assessments of the outcome of implant therapy. Presently, there is a growing interest in the assessment of health-related quality of life and the impact of clinical procedures on the health status of patients.…”