Orthodontics Department, Faculty of Dentistry, Tabriz University of Medical Sciences, Iran.
Med Oral Patol Oral Cir Bucal. 2011 Jul 1;16(4):e568-72. doi: 10.4317/medoral.16.e568.
The aims of the present study were to determine anterior and total tooth-width ratios in a representative Iranian sample in Tabriz city and compare them with the Bolton standards.
A total of 54 Iranian schoolchildren (12-14 years old) in Tabriz were examined. Alginate impressions were taken for subjects and poured by the dental stone. The mesiodistal widths of the teeth were measured using a digital caliper. The overall and anterior Bolton 's intermaxillary tooth size ratios for each model pair was calculated.
There were no significant differences (p > 0.05) between the right and left sides of the dental arch and a symmetry in size exists. There were no significant differences between genders for all teeth measured except for the maxillary central incisors, maxillary canines and mandibular canines. Anterior and overall Bolton ratios for males were 77.72±0.25 and 92.44±0.19 and for females were 78.48±0.30 and 92.45±0.23 percent, respectively. There were no statistically significant differences between males and females for the anterior and overall ratios. The anterior and overall Bolton ratios among Tabrizian schoolchildren were 78.10±0.28 and 92.24±0.21 percent, respectively. There was no statistically significant difference between these ratios and those were found in the Bolton study.
No significant differences between the mesiodistal sizes of contralateral teeth were observed and a symmetry in size exists. There were no significant differences in the mesiodistal sizes of similar teeth between males and females except for the maxillary central incisors, maxillary canines and mandibular canines. Significant differences in Bolton ratio between males and females, and examined population (student from Tabriz, Iran) and the Bolton's weren't observed either.
本研究旨在确定伊朗大不里士市代表性样本的前牙和全牙宽比，并与 Bolton 标准进行比较。
共检查了大不里士的 54 名伊朗学童（12-14 岁）。为受试者采集藻酸盐印模并用牙石浇铸。使用数字卡尺测量牙齿的近远中宽度。计算每个模型对的整体和前牙 Bolton 上下颌牙齿大小比。
牙弓左右两侧无显著差异（p＞0.05），且大小对称。除上颌中切牙、上颌尖牙和下颌尖牙外，所有测量的牙齿性别间均无显著差异。男性的前牙和全牙 Bolton 比分别为 77.72±0.25%和 92.44±0.19%，女性分别为 78.48±0.30%和 92.45±0.23%。男女前牙和全牙 Bolton 比无统计学差异。大不里士学童的前牙和全牙 Bolton 比分别为 78.10±0.28%和 92.24±0.21%。这些比率与 Bolton 研究中发现的比率无统计学差异。
对侧牙齿近远中尺寸无显著差异，且大小对称。除上颌中切牙、上颌尖牙和下颌尖牙外，男女同名牙近远中尺寸无显著差异。男女 Bolton 比以及所检查的人群（来自伊朗大不里士的学生）与 Bolton 之间也没有显著差异。
