Technical complications with implant-supported dental prostheses

Area of Science:

• Dentistry
• Biomaterials Science
• Prosthodontics

Background:

• Dental prosthetic rehabilitation is crucial for restoring function and aesthetics.
• Understanding complications of implant-supported prostheses is essential for long-term success.
• Previous studies have indicated varying complication rates, necessitating further investigation.

Purpose of the Study:

• To evaluate the frequency and types of technical complications associated with implant-supported prostheses.
• To identify factors contributing to these complications.
• To provide evidence-based recommendations for minimizing complications in dental prosthetic rehabilitation.

Main Methods:

• A retrospective, one-time snapshot study design was employed.
• Data were collected from 153 patients with a total of 509 implants.
• Prosthetic conditions were assessed through comprehensive clinical and radiographic examinations.

Main Results:

• The most frequent technical complications were loss of resin covering the screw (23.8%), loss of overdenture retention (18.6%), and resin fractures (12.4%).
• Screw-related complications like fracture (0.2%), loss (0.4%), and loosening (3.3%) were infrequent.
• A significant frequency of prosthesis-abutment misfit (25.4%) was observed, particularly with cemented prostheses (P < 0.001).

Conclusions:

• Technical complications in implant-supported prostheses are common, with resin-related issues and misfit being prevalent.
• Establishing robust protocols from diagnosis through follow-up, including meticulous technical procedures and radiographic evaluation, is vital.
• Further research and standardized protocols are needed to enhance the prognosis and minimize complications in dental prosthetic rehabilitation.