Maxillary Anterior Teeth Dimensions and Proportions in a Central Mainland Chinese Population
Maxillary Anterior Teeth Dimensions and Proportions in a Central Mainland Chinese Population
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DOI：
10.3290/j.cjdr.a33275
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发表时间：
2014-12-01
影响因子：
0.9
通讯作者：
Ding, Yu Mei
中科院分区：
文献类型：
--
作者：
Sah, Sanjay Kumar;Zhang, Han Dong;Ding, Yu Mei
目的：获得中国中部人群的上颌前牙尺寸和比例值，并评估性别二态性的存在、牙齿比例之间的一致性关系以及黄金比例的存在。方法：在从 147 名受试者（82 名女性和 65 名男性）获得的石膏模型上记录了 6 颗上颌前牙的牙齿尺寸和比例。其中，以标准化方式对其中 115 颗铸件进行了数码拍摄，并记录了 6 颗上颌前牙的表观宽度值以进行黄金比例分析。对性别二态性的存在、任何一致的宽度/高度比和黄金比例进行统计分析。采用单样本t检验、双样本t检验和配对t检验对数据进行分析。结果：左右侧测量结果无显着差异。不同的牙齿尺寸都存在性别二态性。两种性别的中切牙和侧切牙的宽高比没有统计学上的显着差异。然而，犬齿显示出统计学上显着的差异。黄金比例准则不适用于该人群。结论：男性上颌前牙尺寸明显大于女性；然而，平均差异很小（< 0.2 mm）并且可能不具有临床显着性。在人群中没有发现黄金比例，或任何重复出现的前牙比例。不同性别之间犬齿的宽度/高度比存在显着差异，证实了其最大的基于性别的形态差异。
Objectives: To obtain maxillary anterior tooth dimension and proportion values for the Central Chinese population and to evaluate the existence of sexual dimorphism, any consistent relationships between the tooth ratios, and the presence of golden proportions.Methods: Tooth dimensions and proportions of six maxillary anterior teeth were recorded on gypsum casts obtained from 147 subjects (82 women and 65 men). Of these, 115 casts were digitally photographed in a standardised manner and apparent width values for six maxillary anterior teeth were recorded for golden proportion analysis. Existence of sexual dimorphism, any consistent width/height ratio and golden proportions were statistically analysed. One-sample t-test, two-sample t-test, and paired t-test were used to analyse the data.Results: There were no significant differences between measurements on the right and left side. Sexual dimorphism existed for various tooth dimensions. There was no statistically significant difference for width/height ratios between the two genders for central incisor and lateral incisor. However, canines showed a statistically significant difference. The golden proportion guideline was not applicable for this population.Conclusion: The maxillary anterior teeth dimensions were significantly greater for men than women; however, the mean difference was small (< 0.2 mm) and may not be clinically significant. The golden proportion, or any recurring anterior teeth proportions, was not found for the population. There was a significant difference in width/height ratio of canines between the genders, confirming its greatest gender-based morphological difference.