DOI: 10.36347/sjams.2014.v02i06.131

Pages: 3504-3508

Background: Provisional crowns are essential in fixed prosthodontics, serving to protect prepared teeth and maintain functionality while ensuring aesthetics during treatment. The purpose of this study was to evaluate the clinical factors contributing to their failure, aiming to improve reliability and patient outcomes. Aim of the study: The aim of the study was to identify and evaluate clinical factors contributing to the failure of provisional crowns. Methods: This retrospective observational study took place in the Department of Prosthodontics at BSMMU and beau-dent, Dhaka, Bangladesh, from January to December 2013, involving 120 patients who underwent provisional crown placement. Participants provided informed consent, and data collected included demographics, tooth type, crown material, and operator experience. Failures (debonding, fracture, marginal leakage) were monitored over six months, considering factors like bruxism and margin fit. Outcomes were analyzed using SPSS version 22.0. Results: A total of 120 patients were included in the study, with a mean age of 54.3 years and a gender distribution of 56.67% male and 43.33% female. The most common failure type was debonding, occurring in 8.33% of the cases. Bruxism was present in 91.30% of the failure cases. Bruxism showed a significant association with failures (p=0.011). The bar chart for bruxism highlights its impact, showing that 91.30% of the failure group had bruxism compared to 63.92% in the success group. Conclusion: The study highlights that bruxism, poor margin fit, use of Bis-acryl resin, and operator experience of fewer than five years are significant factors contributing to the failure of provisional crowns.