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   investigating the causes of failure in posterior amalgam and composite restorations: a cross-sectional study  
   
نویسنده feili fahimeh ,athar athar ,shafiei elham ,sidkhani hosein
منبع journal of basic research in medical sciences - 2024 - دوره : 11 - شماره : 4 - صفحه:28 -33
چکیده    Introduction: understanding the reasons for retreatment of dental restorations is crucial to preventing potential tooth failure. due to limited information on retreatment causes in our region, this study aims to compare the factors leading to the failure of posterior amalgam and composite restorations.materials & methods: this cross-sectional, observational study was conducted on patients referred to the restorative department of ilam faculty of dentistry and private clinics who required retreatment of existing posterior restorations. failure criteria for posterior restorations were evaluated based on established reference guidelines.results:  the study found that secondary caries had an odds ratio (or) of 3.08 (95% ci: 2.85 – 3.29; p < 0.001), indicating a strong association with restoration failure. additionally, restoration fractures were significantly correlated with retreatment, with an adjusted or of 2.50 (95% ci: 2.46 – 2.86; p < 0.001).conclusion:  secondary caries emerged as the most common reason for retreatment, regardless of whether composite or amalgam materials were used. restoration fractures also significantly contributed to the need for retreatment. therefore, it is essential to consider factors such as restoration material, classification, and the number of restoration levels to reduce the likelihood of retreatment.
کلیدواژه dental restoration failure ,dental amalgam ,composite resins ,retreatment
آدرس ilam university of medical sciences, school of dentistry, iran-oral and dental health research center, department of restorative dentistry, iran, ilam university of medical sciences, school of dentistry, iran, ilam university of medical sciences, psychosocial injuries research center, iran, ilam university of medical sciences, school of health, department of biostatistics, iran
پست الکترونیکی seidkhani-h@medilam.ac.ir
 
     
   
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