Ulm C W, Solar P, Gsellmann B, Matejka M, Watzek G
Department of Oral Surgery, University of Vienna, Austria.
Int J Oral Maxillofac Surg. 1995 Aug;24(4):279-82. doi: 10.1016/s0901-5027(95)80029-8.
From 47 anatomic specimens, vertical sections were cut in the molar region, and computer-assisted measurements of both height and width of the alveolar ridge were made to assess the available bone volume for endosseous implant placement. The mean ridge heights ranged between 9.30 and 3.23 mm, the highest and lowest values being 13.8 and 0.8 mm, respectively. The ridge widths generally proved to be sufficient for placement of endosseous implants. Small knife-edge ridges are rarely found in the posterior maxilla. Reduction of the cancellous portion of the posterior maxilla seems to be influenced by the duration of edentulousness, as well as by osteoporotic changes, without being directly related to ridge configuration and bone volume.
从47个解剖标本上，在磨牙区制作垂直切片，并对牙槽嵴的高度和宽度进行计算机辅助测量，以评估骨内种植体植入可用的骨量。牙槽嵴平均高度在9.30至3.23毫米之间，最高值和最低值分别为13.8毫米和0.8毫米。牙槽嵴宽度通常足以植入骨内种植体。在上颌后部很少发现窄刃状牙槽嵴。上颌后部松质骨部分的减少似乎受无牙时间以及骨质疏松变化的影响，而与牙槽嵴形态和骨量无直接关系。
