牙齿与上颌牙弓尺寸、前牙倾斜度和倾斜角的关系。
The Relation among Teeth and Maxillary Dental Arch Dimensions with Anterior Teeth Angulation and Inclination.
机构信息
Department of Orthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq.
出版信息
ScientificWorldJournal. 2021 Oct 5;2021:8993734. doi: 10.1155/2021/8993734. eCollection 2021.
OBJECTIVES
This study aimed at finding out whether anterior teeth angulation and inclination have a relationship with the maxillary teeth and dental arch dimensions.
METHODS
Fifty study models with normal occlusion were selected from the archive of the Department of Orthodontics at Baghdad Dental Faculty. Maxillary dental arch width and length at different points were determined in addition to measuring anterior teeth angulation, inclination, crown thickness, overjet, overbite, and Bolton's ratios. The unpaired -test and Pearson's correlation coefficient test were used for data analysis.
RESULTS
No statistical gender differences were reported in all measurements except the dental arch widths and length where males had significantly higher mean values. Only the maxillary incisor's inclination showed a direct weak significant correlation with the total arch length.
CONCLUSIONS
The inclination of upper incisors had a minimal effect on increasing dental arch length.
目的
本研究旨在探讨上颌切牙的倾斜和角度与上颌牙齿和牙弓尺寸之间是否存在关系。
方法
从巴格达牙科学院正畸科的档案中选择了 50 个正常咬合的研究模型。此外，还测量了上颌牙弓在不同点的宽度和长度，以及测量了前牙的倾斜度、倾斜度、冠厚、覆合、覆盖和 Bolton 比率。采用配对 t 检验和 Pearson 相关系数检验进行数据分析。
结果
除了牙弓宽度和长度外，所有测量值均未报告统计学上的性别差异，而男性的平均值明显更高。只有上颌切牙的倾斜度与总牙弓长度呈直接弱显著相关。
结论
上颌切牙的倾斜度对增加牙弓长度的影响很小。
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