SO SÁNH ĐẶC ĐIỂM XƯƠNG Ổ RĂNG GIỮA RĂNG HÀM NHỎ THỨ HAI VÀ RĂNG HÀM LỚN THỨ NHẤT HÀM TRÊN THEO CÁC LÁT CẮT TRÊN PHIM CTCB

Abstract

Objective: To compare the characteristics of the alveolar bone between maxillary second premolar and maxillary first molar across different slices on CBCT. Methods: A cross-sectional descriptive study was conducted, including 50 CBCT images of individuals aged 18-25 who visited the Department of Diagnostic Imaging and Functional Exploration at the National Hospital of Odonto-Stomatology in Hanoi, with the inclusion and exclusion criteria. Measurements were taken of the distance between the roots and the thickness of the alveolar bone and cortical bone at the positions of maxillary second premolar and maxillary first molar on axial slices at 2, 4, 6, and 8mm from the CEJ in the upper jaw. Data were processed using SPSS 27.0 software. Results and Conclusion: There was a marked difference between the axial slice at 2 mm and the slices at 4, 6, and 8 mm, indicating a progressive increase toward the apex. The 8-mm slice demonstrated the greatest values in terms of interradicular width, buccopalatal alveolar bone thickness, and cortical bone thickness. Meanwhile, the difference in cortical bone thickness between the buccal and palatal sides at each slice was not statistically significant.