Sghaireen Mohammed G
Department of Prosthetic Dental Sciences, College of Dentistry, Jouf University, Sakaka, Kingdom of Saudi Arabia.
J Int Soc Prev Community Dent. 2020 May 7;10(3):316-322. doi: 10.4103/jispcd.JISPCD_101_20. eCollection 2020 May-Jun.
The aim of this study was to investigate the possible correlation between adjacent periapical lesions of maxillary teeth and Schneiderian membrane thickness (SMT).
An analytical study of case-control study design was conducted. From the archives, cone beam computed tomography (CBCT) images of 83 patients with periapical lesion in any of the maxillary posterior teeth were randomly selected as the case group. The normal, contralateral teeth in the same patient were considered in the control group. Eighty-eight teeth were considered in each group, comprising a total sample of 176. For each sample in case group, the distance from the border of the periapical lesion to the cortical bone of the bony floor of the maxillary sinus and SMT were measured. SMT on the contralateral side adjacent to the healthy (control) teeth was also measured. Data were presented in mean ± standard deviation and inferential statistics was performed using independent test and analysis of variance (ANOVA). Later Pearson correlation and multiple linear logistic regression were carried out using Statistical Package for the Social Sciences software program, version 21.0 at 95% confidence interval.
Teeth with periapical lesion were found to have significantly ( < 0.001) increased SMT when compared with that of adjacent to healthy teeth. On the contrary, nonsignificant differences were found in SMT when genders and age groups were compared ( = 0.295 and 0.060, respectively). A strong negative correlation was observed between distance of the lesion to the sinus and SMT ( = 0.003).
Neighboring periapical lesions of maxillary teeth are associated with SMT that is worsened when the lesion is close to the sinus.
本研究旨在探讨上颌牙齿邻牙根尖周病变与施奈德膜厚度（SMT）之间可能存在的相关性。
进行了一项病例对照研究设计的分析性研究。从档案中随机选取83例上颌后牙有根尖周病变患者的锥束计算机断层扫描（CBCT）图像作为病例组。将同一患者的正常对侧牙齿纳入对照组。每组考虑88颗牙齿，共176颗样本。对于病例组中的每个样本，测量根尖周病变边界到上颌窦骨底皮质骨的距离以及SMT。还测量了与健康（对照）牙齿相邻的对侧的SMT。数据以均值±标准差表示，并使用独立样本t检验和方差分析（ANOVA）进行推断统计。随后使用社会科学统计软件包21.0版本在95%置信区间进行Pearson相关性分析和多元线性逻辑回归分析。
与健康牙齿相邻部位相比，发现有根尖周病变的牙齿SMT显著增加（P<0.001）。相反，比较性别和年龄组时，SMT无显著差异（分别为P = 0.295和0.060）。观察到病变到窦的距离与SMT之间存在强烈的负相关（P = 0.003）。
上颌牙齿相邻的根尖周病变与SMT相关，当病变靠近窦时SMT会恶化。
