上颌埋伏尖牙与相邻侧切牙之间的关系：一项基于锥形束计算机断层扫描的回顾性研究

Association Between Impacted Maxillary Canines and Adjacent Lateral Incisors: A Retrospective Study With Cone Beam Computed Tomography.

作者信息

Koral Sevgi, Arman Özçırpıcı Ayça, Tunçer Nilüfer İrem

机构信息

Department of Orthodontics, Başkent University, Faculty of Dentistry, Ankara, Turkey.

出版信息

Turk J Orthod. 2021 Dec;34(4):207-213. doi: 10.5152/TurkJOrthod.2021.20148.

DOI:10.5152/TurkJOrthod.2021.20148

PMID:35110220

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8939710/

Abstract

OBJECTIVE

The goal of this study was to evaluate the association between the morphologic characteristics of maxillary lateral incisors and maxillary canine impaction by using cone beam computed tomography (CBCT) images.

METHODS

CBCT images of 52 patients (19 male and 33 female) with unilateral impacted maxillary canines were selected. The volume, root, and total lengths of the lateral incisor, mesiodistal and buccolingual widths of the lateral incisor crowns, angles between the central axis of the lateral incisor and the midline, occlusal plane, and the central axis of canines in both the impacted and non-impacted side were measured and compared.

RESULTS

Statistically significant differences were obtained when comparing the volume of the lateral incisor, the mesiodistal and buccolingual widths of the lateral incisor crown, the root and total lengths of the lateral incisors, and angles between the central axis of the lateral incisor and the midline and the central axis of the adjacent canine (P < .05). There were no significant differences in lateral incisor axis and the maxillary occlusal plane angulation.

CONCLUSION

The association between the morphologic and angular features of the maxillary lateral incisors and maxillary canine impaction was confirmed. The volume of the lateral incisor, mesiodistal and buccolingual width of the lateral incisor crown, root and the total length of the lateral incisor, and the lateral incisor angulation to the midline and the axis of adjacent canine were found to be strong predictors of maxillary canine impaction.

摘要

目的

本研究的目的是通过使用锥形束计算机断层扫描（CBCT）图像来评估上颌侧切牙的形态特征与上颌尖牙阻生之间的关联。

方法

选择52例单侧上颌尖牙阻生患者（19例男性和33例女性）的CBCT图像。测量并比较患侧和非患侧侧切牙的体积、牙根和总长度、侧切牙冠的近远中宽度和颊舌宽度、侧切牙中轴线与中线、咬合平面以及尖牙中轴线之间的角度。

结果

比较侧切牙的体积、侧切牙冠的近远中宽度和颊舌宽度、侧切牙的牙根和总长度以及侧切牙中轴线与中线和相邻尖牙中轴线之间的角度时，获得了统计学上的显著差异（P <.05）。侧切牙轴线与上颌咬合平面的角度没有显著差异。

结论

上颌侧切牙的形态和角度特征与上颌尖牙阻生之间的关联得到了证实。发现侧切牙的体积、侧切牙冠的近远中宽度和颊舌宽度、侧切牙的牙根和总长度以及侧切牙相对于中线和相邻尖牙轴线的角度是上颌尖牙阻生的有力预测指标。

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