Taguchi A, Tanimoto K, Akagawa Y, Suei Y, Wada T, Rohlin M
Department of Oral and Maxillofacial Radiology, Hiroshima University School of Dentistry, Japan.
Dentomaxillofac Radiol. 1997 Mar;26(2):85-9. doi: 10.1038/sj.dmfr.4600209.
To analyse the possible correlation between the trabecular bone pattern of the edentulous mandible visualized by panoramic radiography and the bone mineral density (BMD) measured by computed tomography (CT).
Panoramic radiography and CT were performed on 28 patients with edentulous mandibles. The trabecular bone pattern of 47 regions on the panoramic radiographs was classified into one of five grades. BMD was measured within circular regions of interest on the axial CT images in the corresponding trabecular area. The gradings were correlated with the CT values using one-way analysis of variance.
There was a significant correlation between the grade of the trabecular bone pattern and the BMD (P < 0.0001).
The proposed classification for the trabecular bone pattern on panoramic radiographs might be a useful aid for the evaluation of the edentulous mandible prior to implant placement.
分析全景片显示的无牙下颌骨小梁骨形态与计算机断层扫描（CT）测量的骨密度（BMD）之间的可能相关性。
对28例无牙下颌骨患者进行全景片和CT检查。全景片上47个区域的小梁骨形态分为五个等级之一。在相应小梁区域的轴向CT图像上的圆形感兴趣区内测量骨密度。使用单因素方差分析将分级与CT值相关联。
小梁骨形态分级与骨密度之间存在显著相关性（P < 0.0001）。
所提出的全景片小梁骨形态分类可能有助于在种植体植入前评估无牙下颌骨。
