Abd-el Samad Younes S
Am J Orthod. 1984 Jan;85(1):83-8. doi: 10.1016/0002-9416(84)90126-x.
Observations relating to maxillary arch dimensions were obtained from 243 randomly selected subjects. The group consisted of 146 Saudi subjects with an average age of 24 years and 97 Egyptian subjects with an average age of 27 years. The measurement distances from canine to canine (C-C), molar to molar (M-M), molar to canine (M-C), and molar to incisor (M-I) were based on Mack4 criteria. There was a highly significant difference by sex for Saudi and Egyptian samples, and the mean value of C-C, M-M, and M-I intercusp distances was significantly higher for Egyptians than for the Saudi sample. No significant difference was found in the M-C measurement. The results of this study demonstrate the median location of maxillary arch dimensions of Saudi and Egyptian groups combined as a sample Middle Eastern population when compared with Nigerian and British samples. Furthermore, this work can be used as a basis for future studies by anthropologists in all countries of the Middle East to define the possible changes that occur in the maxillary arch dimensions and the expected changes in the future.
对上颌牙弓尺寸的观察数据来自243名随机选取的受试者。该组包括146名平均年龄为24岁的沙特受试者和97名平均年龄为27岁的埃及受试者。犬齿间（C-C）、臼齿间（M-M）、臼齿与犬齿间（M-C）以及臼齿与门牙间（M-I）的测量距离基于Mack4标准。沙特和埃及样本在性别上存在高度显著差异，埃及人C-C、M-M和M-I牙尖间距离的平均值显著高于沙特样本。在M-C测量中未发现显著差异。与尼日利亚和英国样本相比，本研究结果表明，作为中东人群样本的沙特和埃及组上颌牙弓尺寸的中位数位置。此外，这项工作可作为中东所有国家人类学家未来研究的基础，以确定上颌牙弓尺寸可能发生的变化以及未来预期的变化。
