Abstract
Introduction: Analyses of failures and complications of dental prosthesis are important to ascertain what might improve clinical procedures and for the selection of materials. In Saudi Arabia, we do not have enough data about the quality of fixed dental prosthesis in population.
Purpose: To evaluate the complications and failure of the different types of fixed dental prosthesis and its association with many factors in these subjects in multi governmental dental centres in Jeddah, Saudi Arabia.
Materials and methods: The study was carried out in 5 governmental dental centres in the city of Jeddah, Saudi Arabia. 197 patients contributing a total of 431 prosthesis were included through the inclusion and exclusion criteria. The patients were interviewed, and a complete clinical and radiographic examination for the prosthesis was performed. Also, the participants were asked if the identified problems with their prosthesis affected their lifestyle.
Results: Fixed dental prosthesis failure were significantly higher in PFM than all ceramic material. The most common complications were defective margin followed by caries. Over-contoured prosthesis shows a significantly higher caries association than normal contour. Short span FPDs has significantly less complications than long span.
Conclusion: All ceramic fixed dental prosthesis has better prognosis, less complications and higher success rate than PFM. Discrepancies at the prosthesis margins were associated with higher caries count and greater gingival inflammation of the supporting teeth. Over-contoured prosthesis is a contributing factor in the presence of dental caries around the defective prosthesis margin.