Abstract:

Background: To determine the frequency and localization of overhang restorations by retrospectively examining cone-beam computed tomography images and to evaluate the destruction of the alveolar bone in three dimensions over time. Material and Methods: Patients who had at least one proximal restoration such as subgingival amalgams, composite or glass ionomer restorations (proximal overhang edges), cervical abrasions, class V restorations, with unrestored contralateral teeth were included in this study. All cone-beam computed tomographies examined in the study were taken with the Planmeca Promax 3D (Planmeca Inc. Helsinki, Finland) device. None of the cone-beam computed tomographs were obtained specifically for this study. After examining the tomography of the overhang restorations; The type, location and patient information of the teeth were recorded. Wilcoxon sign test, Mann Whitney U test and Spearman correlation were used in the statistical analysis of the data. Significance level was accepted as % 95. Results: % 52.6 of the patients were female, % 47.4 were male, and % 50.9 of the overhang restoration teeth consisted of molars and % 49.1 of premolars. % 54.38 of the overhang restorations examined are located in the maxilla and % 45.62 are located in the mandibula. Alveolar bone destruction measurement values in the mesial and distal regions of teeth with overhanging restoration were higher than the measurement values of healthy teeth located on the opposite side (p<0.05). Conclusion: Overhang restorations were mostly observed in the maxilla and mesial surfaces of the teeth.

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