Brown T, Abbott A H, Burgess V B
Am J Phys Anthropol. 1987 Jan;72(1):49-57. doi: 10.1002/ajpa.1330720107.
The patterns of age change in dental arch breadths and depths were studied longitudinally in Australian Aboriginals, 92 males and 68 females. Three types of change in relative arch dimensions were recognized: a divergent pattern in which the differences between maxillary and mandibular dimensions increased with age, a convergent pattern in which the differences decreased, and a parallel pattern in which the arch differences remained metrically stable. The feature that best distinguished the Aboriginals from Caucasian groups was the high frequency of subjects, 71% of males and 40% of females, who showed a divergent growth pattern. The association between divergent growth in arch breadths and the development of alternate intercuspation, which is characterized by an inability to occlude the teeth on both sides of the arch at the same time, is discussed.
对92名男性和68名女性澳大利亚原住民的牙弓宽度和深度的年龄变化模式进行了纵向研究。识别出相对牙弓尺寸的三种变化类型：一种发散模式，即上颌和下颌尺寸之间的差异随年龄增加；一种收敛模式，即差异减小；以及一种平行模式，即牙弓差异在测量上保持稳定。将原住民与白种人群体区分开来的最佳特征是出现发散生长模式的受试者比例很高，男性为71%，女性为40%。文中讨论了牙弓宽度的发散生长与交替牙尖交错的发展之间的关联，交替牙尖交错的特征是无法同时咬合牙弓两侧的牙齿。
