Yesiltepe Selin, Kılcı Gulcin
Department of Oral and Dentomaxillofacial Radiology, Faculty of Dentistry, Aydın Adnan Menderes University, 09100, Aydın, Turkey.
Oral Radiol. 2022 Apr;38(2):269-277. doi: 10.1007/s11282-021-00554-2. Epub 2021 Jul 13.
To evaluate the relationship between the position and impaction level of the impacted maxillary third molar teeth and marginal bone loss, caries and resorption findings on the distal surface of the second molar teeth with cone beam computerized tomography (CBCT) scans.
All CBCT images of 189 impacted maxillary teeth belonging to 121 patients were examined by an observer. After determining the position and impaction level of the impacted maxillary third molar teeth, presence of caries, resorption and marginal bone loss in the distal of the second molar tooth were evaluated. IBM SPSS Statistics 22.0 (IBM Corp. Released 2013. IBM SPSS Statistics for Windows, Version 22.0. Armonk, NY: IBM Corp.) was used for statistical analyses and calculations. Data were analysed using the Chi-square test and Fisher's exact test.
A statistically significant difference was found in terms of the impaction level of the impacted maxillary third molar tooth and the presence of caries in the distal surface of the second molar tooth, in terms of the impaction level of the impacted third molar tooth and the presence of marginal bone loss in the distal surface of the second molar tooth. A similar difference was found in terms of the impaction level of the impacted third molar tooth and the presence of root resorption in the distal surface of the second molar tooth.
These data on the natural history of impacted maxillary third molars may contribute to both more accurate estimates of the risk of complications associated with these teeth and determination of the prophylactic approach to asymptomatic impacted third molars.
通过锥形束计算机断层扫描（CBCT）评估上颌阻生第三磨牙的位置和阻生程度与第二磨牙远中面边缘骨丢失、龋齿及吸收情况之间的关系。
由一名观察者检查121例患者的189颗上颌阻生牙的所有CBCT图像。确定上颌阻生第三磨牙的位置和阻生程度后，评估第二磨牙远中面龋齿、吸收及边缘骨丢失情况。使用IBM SPSS Statistics 22.0（IBM公司，2013年发布。适用于Windows的IBM SPSS Statistics，版本22.0。纽约州阿蒙克：IBM公司）进行统计分析和计算。采用卡方检验和Fisher精确检验分析数据。
在上颌阻生第三磨牙的阻生程度与第二磨牙远中面龋齿的存在、上颌阻生第三磨牙的阻生程度与第二磨牙远中面边缘骨丢失的存在、上颌阻生第三磨牙的阻生程度与第二磨牙远中面牙根吸收的存在方面，均发现有统计学意义的差异。
这些关于上颌阻生第三磨牙自然病史的数据，可能有助于更准确地估计与这些牙齿相关的并发症风险，并确定对无症状上颌阻生第三磨牙的预防方法。
