The prevalence of dental midline deviations in a sample of young Iraqi adults.

Q2 Dentistry

Journal of Orthodontic Science Pub Date : 2025-06-10 eCollection Date: 2025-01-01 DOI:10.4103/jos.jos_134_24

Nada A Mahdi, Sami K Al-Joubori, Nadeen J Abdulredha, Ahmed A Jasim

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Abstract

Objective: The goal of this study was to determine the prevalence of midline shift in relation to gender, location, and classification of malocclusion.

Material and methods: A total of 150 dentistry students aged 18-25 (93 females and 57 males) were picked at random from Mustansiriyah University. Dental midline shifting is evaluated by comparing the positions of the maxillary and mandibular dental midlines to the face midline, with the philtrum serving as a reference point.

Results: About a quarter of the total sample had dental midline shift (26%) which was more prevalent in mandibular arch. The prevalence of dental midline shift was more common in females (60,5%). In general, dental midline deviation was more common in angle's Class I and Class II than Class III, while for the maxillary arch, it was common in angle's Class I and Class II, Divison 1, and for the mandibular arch, it was more common in angle's Class I and Class III. The deviation was more common to the right side in both arches.

Conclusions: A quarter of the total sample had dental midline shift, most of them were females, and the deviation was more common in the mandibular arch in Class I angle's classification.

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流行的牙齿中线偏差在年轻的伊拉克成年人的样本。

目的：本研究的目的是确定中线移位的患病率与性别、位置和错牙合分类的关系。材料与方法：在穆斯坦西里耶大学随机抽取年龄在18-25岁的牙科专业学生150名，其中女93名，男57名。牙中线移位是通过比较上颌和下颌牙中线与面部中线的位置来评估的，以中牙为参考点。结果：约四分之一的样本有牙中线移位（26%），下颌弓多见。牙齿中线移位的患病率在女性中更为常见（60.5%）。一般情况下，牙中线偏差在角的I类和II类中较III类多见，上颌弓在角的I类和II类中多见，在下颌弓在角的I类和III类中多见。双足弓右侧偏曲更为常见。结论：1 / 4的患者存在牙中线移位，以女性居多，且在I类角度分类中，下颌弓偏移较为常见。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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