Abstract
In this retrospective clinical study, the aim is to evaluate the effect of the clinical survival rates of different post-and-core systems in terms of the age and sex of the population, type of restoration, tooth position, type of post material, effect of opposing dentition, and type of cement used. A retrospective analysis was conducted via spreadsheets that showed patients who were treated with post-and-cores between August 2016 and March 2020. A total of 524 records were included in the analysis according to the inclusion criteria. Data were analysed using Kaplan–Meier and Cox proportional hazards analysis. While a statistically significant difference between the post-and-core survival among age, restoration type, cement type, opposing dentition, and service time was determined (p<0.001), a statistically significant difference with tooth position and sex was not detected (p>0.05). The analyzes showed no evidence that different post-and-core systems (prefabricated glass and carbon fiber reinforced composite resin, cast metal and prefabricated metal) were significantly associated with post-and-core survival. However, opposing dentition, type of cement, and restoration exhibited a statistically significant difference with the post-and-core survival.
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