Klemetti E, Vainio P, Lassila V, Alhava E
Department of Prosthetics and Stomatognatic Physiology, University of Kuopio, Finland.
Scand J Dent Res. 1993 Aug;101(4):219-23. doi: 10.1111/j.1600-0722.1993.tb01108.x.
Mineral density of the cortical bone of the mandible was determined by single-energy QCT (quantitative computed tomography) for 77 menopausal women. Bone mineral densities (BMD) were measured in the buccal and lingual layers of the cortex, distally from the foramen mentale, on both sides of the mandible. All the women were edentulous in that region, and the alveolar processes were far resorbed. These results were compared with the BMD values of the femoral neck, lumbar spine, and trabecular portion of the mandible between the detected layers of cortex. The BMD of the buccal cortex correlated remarkably well with all values, except those of the trabecular portion. Of the women tested, the correlations were lowest in the least osteoporotic group. The values for the lingual cortex did not correlate with other variables as well as did those for the buccal cortex, but in the most osteoporotic part of the sample the lingual cortex values correlated significantly with the BMD of the trabecular portion. The BMD values for the buccal cortex were significantly higher than those for the lingual cortex.
通过单能定量计算机断层扫描（QCT）测定了77名绝经后女性下颌骨皮质骨的矿物质密度。在下颌骨两侧颏孔远端的皮质骨颊侧和舌侧层测量骨矿物质密度（BMD）。所有女性在该区域均无牙，牙槽突吸收明显。将这些结果与股骨颈、腰椎以及下颌骨皮质检测层之间的小梁部分的BMD值进行比较。颊侧皮质骨的BMD与所有值均有显著相关性，但与小梁部分的值除外。在受试女性中，骨质疏松程度最低的组相关性最低。舌侧皮质骨的值与其他变量的相关性不如颊侧皮质骨的值，但在样本中骨质疏松最严重的部分，舌侧皮质骨的值与小梁部分的BMD显著相关。颊侧皮质骨的BMD值显著高于舌侧皮质骨的BMD值。
