Analysis on the relationship between Schneiderian membrane thickening in the posterior maxillary region and periapical lesions by cone beam computed tomography.

Bo Feng, Fengxiang Li, Qitao Du
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Abstract

Objectives: This study aimed to evaluate the thickening of sinus membrane, which is also named Schneiderian membrane (SM), in patients and its relationship with periapical lesions (PAL) in the posterior maxillary region to provide reference for the prevention and treatment of odontogenic maxillary sinusitis.

Methods: A retrospective analysis was conducted on 554 cone beam computed tomography (CBCT) imaging data of maxillary sinuses from 301 patients who met the inclusion criteria to determine the correlation between PAL and SM thickening in the posterior maxillary region. Cases of pathological SM were recorded and classified on the basis of the degree and type of SM thickening. The correlation between SM thickening and the diameter of PAL, the relationship between the upper edge of PAL and the maxillary sinus floor, and its relationship with whether affected teeth with PAL undergo root canal treatment were evaluated.

Results: The detection rate of SM thickening in patients with PAL was significantly higher than in those without PAL, so PAL was correlated with SM thickening. Analysis on the correlation between PAL detection indicators and SM thickening degree showed that SM thickening degree was positively correlated with PAL diameter (cone beam computed tomography-periapical index) and not correlated with the three spread effects between the upper edge of PAL and the maxillary sinus floor, as well as whether the teeth with PAL undergo root canal treatment. The correlation analysis between PAL detection indicators and SM thickening types showed that whether the teeth with PAL undergo root canal treatment was not correlated with SM thickening types, and the diameter of PAL, the three spread effects between the upper edge of PAL, and the maxillary sinus floor were not correlated with SM thickening types.

Conclusions: The PAL of posterior maxillary teeth is closely related to SM thickening, and the diameter of PAL is positively correlated with the degree of SM thickening. Patients with PAL who have undergone root canal treatment often exhibit SM polyp thickening. In addition, the relationship between the upper edge of PAL and the maxillary sinus floor does not affect the possibility of SM development.

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通过锥形束计算机断层扫描分析上颌后部施奈德膜增厚与根尖周病变之间的关系。
研究目的本研究旨在评估患者上颌后部窦膜(又称施奈德膜(SM))的增厚情况及其与根尖周病变(PAL)的关系,为预防和治疗牙源性上颌窦炎提供参考:对符合纳入标准的 301 名患者的 554 例上颌窦锥束计算机断层扫描(CBCT)成像数据进行回顾性分析,以确定上颌后区 PAL 与 SM 增厚之间的相关性。根据 SM 增厚的程度和类型对病理 SM 病例进行记录和分类。评估了 SM 增厚与 PAL 直径的相关性、PAL 上缘与上颌窦底的关系,以及与 PAL 患牙是否接受根管治疗的关系:结果:PAL 患者 SM 增厚的检出率明显高于无 PAL 患者,因此 PAL 与 SM 增厚相关。对 PAL 检测指标与 SM 增厚程度的相关性分析表明,SM 增厚程度与 PAL 直径(锥束计算机断层扫描-根尖指数)呈正相关,与 PAL 上缘和上颌窦底之间的三个扩散效应以及 PAL 患牙是否接受根管治疗无关。PAL检测指标与SM增厚类型的相关性分析表明,有PAL的牙齿是否进行根管治疗与SM增厚类型无关,PAL的直径、PAL上缘与上颌窦底之间的三个扩散效应与SM增厚类型无关:结论:上颌后牙的PAL与SM增厚密切相关,PAL的直径与SM增厚程度呈正相关。经过根管治疗的 PAL 患者通常会表现出 SM 息肉增厚。此外,PAL 上缘与上颌窦底之间的关系并不影响 SM 发展的可能性。
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