Varun Kumar, Arora Mayank, Pubreja Lovekesh, Juneja Ruchi, Middha Mitali
Department of Dentistry, Kalpana Chawla Government Medical College, Karnal, Haryana, India.
Department of Conservative Dentistry and Endodontics, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India.
J Conserv Dent. 2022 May-Jun;25(3):306-310. doi: 10.4103/jcd.jcd_46_22. Epub 2022 Jun 13.
The aim of this study was to study the prevalence of dens invaginatus (DI) and palatogingival groove (PGG) in maxillary lateral incisors, and the occurrence of apical periodontitis in association with these anomalies in North Indian population.
Maxillary lateral incisors in 163 cone-beam computed tomography scans were assessed to determine the presence of DI and PGG. Anomalies identified were then classified as per Oehler's and Gu's classification, respectively. Their side and gender predilection and association with apical and lateral radiolucency was also studied.
Descriptive data were reported as percentages. Chi-square analysis was used to determine the association with gender and side predilection.
DI was present in 13.5% of the scans, while PGG was present in 7.3% of the scans. No significant gender and side predilection was observed. 6.67% of lateral incisors with DI and 25% of lateral incisors with PGG had an associated apical radiolucency. 33.33% of lateral incisors with PGG had an associated lateral radiolucency.
There is a high prevalence of DI and PGG in maxillary lateral incisors.
本研究的目的是调查北印度人群上颌侧切牙中牙内陷（DI）和腭龈沟（PGG）的患病率，以及与这些异常相关的根尖周炎的发生情况。
对163例锥形束计算机断层扫描中的上颌侧切牙进行评估，以确定DI和PGG的存在情况。然后分别根据奥勒（Oehler）和顾（Gu）的分类法对所发现的异常进行分类。还研究了它们在左右侧及性别的偏好情况，以及与根尖和侧方透射影的相关性。
描述性数据以百分比形式报告。采用卡方分析来确定与性别和侧方偏好的相关性。
在13.5%的扫描中发现了DI，而在7.3%的扫描中发现了PGG。未观察到明显的性别和侧方偏好。6.67%伴有DI的侧切牙和25%伴有PGG的侧切牙有相关的根尖透射影。33.33%伴有PGG的侧切牙有相关的侧方透射影。
上颌侧切牙中DI和PGG的患病率较高。
