Measurement table_bone density.

This cross-sectional study aimed to establish whether a difference exists between the mandibular bone density and the mandibular angle values of adult bruxer and non-bruxer patients, based on a CBCT analysis. CBCT scans of bruxer and non-bruxer patients were analysed with two software packages, 3D Slicer® and Romexis®. Bone density in the alveolar bone below and immediately adjacent to the apices of teeth 31, 33, 34, 41, 43, 44, and the mesial apices of teeth 36 and 46, was recorded in Hounsfield units with 3D Slicer®. The mandibular angle between the corpus and ramus tangent lines was measured using Romexis® software. 113 CBCT scans were included in the study of alveolar bone density, of which 78 were used to study mandibular angle values. A statistically significant difference (p

本横断面研究旨在通过锥形束计算机断层扫描（Cone Beam Computed Tomography，CBCT）分析，探究成年磨牙症患者（bruxer）与非磨牙症患者（non-bruxer）的下颌骨密度及下颌角参数是否存在差异。研究对磨牙症患者与非磨牙症患者的CBCT影像分别采用两款软件套件——3D Slicer®与Romexis®进行分析。使用3D Slicer®记录牙齿31、33、34、41、43、44的根尖下方及紧邻区域，以及牙齿36、46的近中根尖周围牙槽骨的骨密度，以亨氏单位（Hounsfield Units，HU）为单位进行量化记录。使用Romexis®软件测量下颌体与下颌支切线之间的下颌角角度。本研究共纳入113份CBCT影像用于牙槽骨密度分析，其中78份影像被用于下颌角参数的相关研究。两组间存在统计学显著差异（p