COMPLICATIONS OF POSTERIOR IMPLANT SUPPORTED CROWN AND BRIDGE AFTER 5-9 YEARS OF LOADING AND ORAL HEALTH-RELATED QUALITY OF LIFE: A RETROSPECTIVE COHORT STUDY

Abstract

This study aimed to investigate the incidence of complications of implant-supported crowns and bridges in posterior region after 5-9 years of use, as well as the oral health-related quality of life of patients. This study evaluated outcomes in patients who had used implant-supported crowns and bridges for 5-9 years through follow-up appointments. Patients who had received implant-supported or bridges between August 2016 and August 2018 were recalled for a review of their medical history, clinical examination, radiographic assessment, and completion of the OHIP-14 questionaire. A total of 61 patients, comprising 108 dental implants restored with crowns or bridges, were included in this study. At an average follow-up period of 6.6 years, at least one complication was observed in 51.8% of cases. The complications identified included loose mesial proximal contact (38.7%), peri-implant mucositis (25.9%), food impaction (23.1%), metal exposure (9.5%), ceramic chipping (8.8%), loss of screw access hole filling material (3.9%), screw loosening, and peri-implantitis (0.9%). Most complications were minor, and patients reported that they had to be cautious when using dental implants and experience difficulties while eating. A statistically significant difference (p<0.05) was found in OHIP-14 scores between patients who had and had not experienced complications, with the group experiencing complications exhibiting higher OHIP-14 scores.