Jasinevicius T Roma, Pyle Marsha A, Lalumandier James A, Nelson Suchitra, Kohrs Keith J, Sawyer Danny R
School of Dental Medicine, Case Western Reserve University, 10900 Euclid Ave. Cleveland, OH 44106-4905, USA.
Cranio. 2005 Oct;23(4):249-56. doi: 10.1179/crn.2005.035.
The purpose of this study was to determine if there were differences in the angle of eminentia of two 20th century populations based on race, age, gender, and number of teeth and whether there was asymmetry of the angles of eminentia. The sample included dry skulls from the Hamann-Todd Osteological collection as follows: 80 African-Americans (AA, 53 males and 27 females) and 62 European-Americans (EA, 49 males and 13 females), ranging in age from 16-77 years. The lateral, central, and medial aspects of the right and left slopes of the articular eminence were measured in a parasagittal plane. Independent t-tests, paired t-tests, and Pearson correlation coefficients were computed. For the AA population, the right central, lateral, and medial angles of eminentia were steeper than the corresponding left angles (paired t-test, p<0.05); for the AE males only the right lateral and medial angles were significantly steeper than the corresponding left angles (paired t-test, p<0.05). There were no significant relationships between age or number of teeth and the angle of eminentia measurements, nor were there differences in angle of eminentia by gender. There were two differences by race: the EA males had steeper left central and left medial angles than the AA males (independent t-test, p<0.05). The central angle of eminentia was consistently steeper than the medial angle (paired t-test, p<0.01), and the lateral was generally steeper than the medial.
本研究的目的是确定20世纪两个群体的关节结节角度在种族、年龄、性别、牙齿数量方面是否存在差异，以及关节结节角度是否存在不对称性。样本包括来自哈曼-托德骨学收藏的干燥头骨，具体如下：80名非裔美国人（AA，53名男性和27名女性）和62名欧裔美国人（EA，49名男性和13名女性），年龄范围为16 - 77岁。在矢状旁平面测量关节结节左右斜坡的外侧、中央和内侧方面。计算独立t检验、配对t检验和皮尔逊相关系数。对于非裔美国人群体，关节结节的右侧中央、外侧和内侧角度比相应的左侧角度更陡（配对t检验，p<0.05）；对于欧裔美国男性，只有右侧外侧和内侧角度比相应的左侧角度明显更陡（配对t检验，p<0.05）。年龄或牙齿数量与关节结节角度测量之间没有显著关系，按性别划分的关节结节角度也没有差异。种族方面有两个差异：欧裔美国男性的左侧中央和左侧内侧角度比非裔美国男性更陡（独立t检验，p<0.05）。关节结节的中央角度始终比内侧角度更陡（配对t检验，p<0.01），外侧角度通常比内侧角度更陡。
