HÌNH THÁI GIẢI PHẪU XƯƠNG Ổ VÙNG RĂNG CỐI NHỎ HÀM TRÊN NGƯỜI VIỆT TRƯỞNG THÀNH QUA HÌNH ẢNH CẮT LỚP CHÙM TIA HÌNH NÓN

Abstract

Objectives: To assess the anatomical features of the alveolar bone in the maxillary premolar region in young Vietnamese adults using CBCT, supporting clinical decisions for immediate implant placement. Subjects and methods: A retrospective analysis was conducted on 111 CBCT images from individuals aged 20 to 25 years old. Measurements included cervical width, buccal and palatal bone thickness, root apex to sinus floor distance and height of the interradicular septum. Results: The buccal bone plate in the study sample was frequently thin (< 2mm) and, in some instances, was undetectable (0 mm). Apex to sinus distances varied widely, with some roots contacting directly with the sinus floor. The height of the interradicular septum varied across individuals and tooth regions. Conclusions: The maxillary premolar alveolar bone in young Vietnamese adults demonstrates considerable anatomical variation. The frequent findings of a thin buccal bone plate and proximity of the root to the maxillary sinus indicate that conditions are often suboptimal for immediate implant placement. Preoperative image assessment and careful planning are essential to achieve the desired clinical outcomes.