上颌阻生尖牙患者牙源性病变的发生率及其与阻生特征的关系。

Frequency of odontogenic lesions in patients with impacted maxillary canines and the association with impaction characteristics.

作者信息

Pineda-Méndez Alejandro, Aliaga-Del Castillo Aron, Rodríguez-Cárdenas Yalil Augusto, Ruíz-Mora Gustavo Armando, Dutra Vinicius, Arriola-Guillén Luis Ernesto

机构信息

Division of Oral and Maxillofacial Radiology, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru.

Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, USA.

出版信息

Dent Med Probl. 2025 May-Jun;62(3):479-485. doi: 10.17219/dmp/165841.

DOI:10.17219/dmp/165841

PMID:40644036

Abstract

BACKGROUND

Since impacted canines are a frequent eruptive anomaly, it is imperative to study their etiological aspects. A possible cause of impaction is the presence of odontogenic lesions close to the impacted canine.

OBJECTIVES

The aim of this study was to evaluate the frequency of odontogenic lesions in patients with impacted canines and their association with the characteristics of impaction.

MATERIAL AND METHODS

This cross-sectional study was carried out with the scans of 93 impacted maxillary canines obtained from cone-beam computed tomography (CBCT) studies performed in 3 radiological centers. The selection criteria regarded male and female patients older than 12 years, and were based on the CBCT scans of impacted canines, showing unilateral or bilateral maxillary impaction, with or without odontogenic lesions. The position of the impacted canines, the sector of impaction, the presence or absence of a dentigerous cyst, an odontoma or follicular enlargement, as well as the total diameter of the lesion, were evaluated. The χ2 test and logistic regression analysis were performed, and the level of statistical significance was set at p < 0.05.

RESULTS

The frequency of odontogenic lesions near the canine impaction area was generally low (7.5% for a dentigerous cyst, 6.5% for follicular enlargement and 3.2% for a mesiodens). However, there was a significant association between the presence of a dentigerous cyst and buccal or mid-alveolar impacted canines (p = 0.032). The alpha and beta angles influenced the possibility of the occurrence of dentigerous cysts, with the alpha angle increasing the risk (B = 1.22; p = 0.041) and the beta angle decreasing the chance of developing a dentigerous cyst (18%) (p = 0.024).

CONCLUSIONS

The presence of odontogenic lesions in impacted maxillary canine cases is low, and involves mainly dentigerous cysts and follicular enlargement in buccal or mid-alveolar impacted canines. The alpha and beta angles may influence the development of dentigerous cysts.

摘要

背景

由于阻生犬齿是一种常见的萌出异常，因此有必要研究其病因。阻生的一个可能原因是在阻生犬齿附近存在牙源性病变。

目的

本研究的目的是评估阻生犬齿患者牙源性病变的发生率及其与阻生特征的相关性。

材料与方法

本横断面研究对从3个放射中心进行的锥形束计算机断层扫描（CBCT）研究中获得的93颗上颌阻生犬齿的扫描图像进行了分析。入选标准为年龄大于12岁的男性和女性患者，基于阻生犬齿的CBCT扫描图像，显示单侧或双侧上颌阻生，伴有或不伴有牙源性病变。评估了阻生犬齿的位置、阻生部位、含牙囊肿、牙瘤或滤泡增大的有无以及病变的总直径。进行了χ²检验和逻辑回归分析，统计学显著性水平设定为p < 0.05。

结果

犬齿阻生区域附近牙源性病变的发生率总体较低（含牙囊肿为7.5%，滤泡增大为6.5%，额外牙为3.2%）。然而，含牙囊肿的存在与颊侧或牙槽中份阻生犬齿之间存在显著相关性（p = 0.032）。α角和β角影响含牙囊肿发生的可能性，α角增加风险（B = 1.22；p = 0.041），β角降低发生含牙囊肿的几率（18%）（p = 0.024）。