Beckmann S H, Kuitert R B, Prahl-Andersen B, Segner D, The R P, Tuinzing D B
Department of Orthodontics, ACTA, Amsterdam, The Netherlands.
Am J Orthod Dentofacial Orthop. 1998 May;113(5):498-506. doi: 10.1016/s0889-5406(98)70260-4.
In this study, the relationships between the lower face height and the structure of the frontal alveolar and basal bone were investigated. The areas and the dimensions of the anterior alveolar and basal midsagittal cross-sectional bone from the maxilla and the mandible were recorded on lateral cephalograms from 460 untreated adults. An index was calculated dividing the sagittal by the vertical dimension of the midsagittal cross-sectional area. The subjects with a normal overbite between 0.5 and 4 mm (N=165) were divided into three groups according to the lower face height. A larger lower face height coincided with a larger maxillary alveolar and basal area and with a smaller mandibular alveolar index. Correlations between the lower face height and the maxillary alveolar index and the mandibular alveolar and basal area were low. It is concluded that long-faced subjects have a large mandibular alveolar height, which is more associated with a narrowed shape than with a large volume of the symphysis.
在本研究中，对下颌面高度与前牙槽骨及基骨结构之间的关系进行了调查。从460名未经治疗的成年人的头颅侧位片上记录了上颌骨和下颌骨前牙槽及基骨矢状中截面的面积和尺寸。通过将矢状尺寸除以前牙槽矢状中截面面积的垂直尺寸来计算一个指数。正常覆合在0.5至4毫米之间的受试者（N = 165）根据下颌面高度分为三组。下颌面高度越大，上颌牙槽和基骨面积越大，而下颌牙槽指数越小。下颌面高度与上颌牙槽指数以及下颌牙槽和基骨面积之间的相关性较低。得出的结论是，长脸受试者的下颌牙槽高度较大，这与联合部形状变窄的关联更大，而不是与联合部的大体积有关。
