新西兰牙科学生牙槽骨高度种族差异的影像学研究。
Radiographic study of ethnic variation in alveolar bone height among New Zealand dental students.
作者信息
Wong Benedicta K J, Leichter Jonathan W, Chandler Nick P, Cullinan Mary P, Holborow Doug W
机构信息
Department of Oral Rehabilitation, University of Otago School of Dentistry, Dunedin, New Zealand.
出版信息
J Periodontol. 2007 Jun;78(6):1070-4. doi: 10.1902/jop.2007.060366.
BACKGROUND
The aim of this study was to determine anatomical variations in the radiographic distance between the cemento-enamel junction and the alveolar crest with respect to ethnic heritage and gender in New Zealand dental students.
METHODS
Digitized bitewing films of 123 second-year New Zealand dental students were examined with a computer imaging program on a desktop computer screen. The race of parents and grandparents was obtained by questionnaire.
RESULTS
The mean distance from the cemento-enamel junction to the alveolar crest across the sample was 0.97 mm. Eighteen (14.6%) of the participants had measurements >2 mm, of whom 17 were Asians. Asians had a significantly larger mean distance than did non-Asians (1.10 mm compared to 0.83 mm; P <0.001). Gender was not a significant variable.
CONCLUSIONS
Students of Asian origin had a significantly greater distance between the cemento-enamel junction and the alveolar crest. It remains to be determined whether this is anatomical or disease related.
背景
本研究的目的是确定新西兰牙科学生中，牙骨质-釉质界与牙槽嵴之间的影像学距离在种族和性别方面的解剖学差异。
方法
使用计算机成像程序在台式电脑屏幕上检查123名新西兰牙科专业二年级学生的数字化咬合翼片。通过问卷调查获取父母和祖父母的种族信息。
结果
整个样本中，从牙骨质-釉质界到牙槽嵴的平均距离为0.97毫米。18名（14.6%）参与者的测量值大于2毫米，其中17人为亚洲人。亚洲人的平均距离显著大于非亚洲人（分别为1.10毫米和0.83毫米；P<0.001）。性别不是一个显著变量。
结论
亚裔学生的牙骨质-釉质界与牙槽嵴之间的距离显著更大。这是解剖学原因还是与疾病相关，仍有待确定。
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