应用头颅侧位测量和锥束CT图像对下颌关节区线性和角度测量的比较

Pub Date : 2023-09-01 DOI:10.1002/osi2.1212

Oğuzhan Baydar, Erinc Onem, B. Baksı

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引用次数: 0

摘要

比较使用侧位头影测量（LC）和锥形束计算机断层扫描（CBCT）图像对下颌关节区的线性和角度测量。包括100名同时证明LC和CBCT暴露的患者。患者的侧位头影测量和CBCT图像均用于角度和线性测量。角度测量包括前庭凹度、舌和牙齿倾斜角度。获得前庭和舌侧皮质骨和总骨厚度测量值，用于比较线性测量值。三名放射科医生对200张图像进行了测量。使用配对和Wilcoxon t检验对测量和成像方法进行比较。用类内相关系数（ICC）评估观察者间的可靠性。两种成像方法测量牙齿倾斜度和前庭凹角之间存在显著差异；然而，LC和CBCT测量的舌倾斜角没有发现差异（p > 0.05）。前庭皮质骨和总骨厚度测量显示出显著差异（p 0.05）。建议在选定的患者中进行CBCT成像，其中受体骨或骨增强部位在临床检查中显示可疑，而侧位头影测量成像可能无法揭示真实的解剖结构和关系。

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Comparison of linear and angular measurements in mandibular symphyseal region using lateral cephalometric and cone beam CT images

To compare the linear and angular measurements of the mandibular symphyseal region using lateral cephalometric (LC) and cone beam computed tomography (CBCT) images.One hundred patients justifying both LC and CBCT exposures were included. Both lateral cephalometric and CBCT images of the patients were used for angular and linear measurements. Angular measurements included vestibular concavity and lingual and tooth inclination angles. Vestibular and lingual cortical bone and total bone thickness measurements were obtained for the comparison of linear measurements. Three radiologists performed the measurements on 200 images. Comparison of the measurements and the imaging methods were done using paired‐ and Wilcoxon t‐tests. Inter‐observer reliability was evaluated with the intra‐class correlation coefficient (ICC).A significant difference was observed between measurements of two imaging methods for tooth inclination and vestibular concavity angles; however, no difference was found between LC and CBCT measurements for lingual inclination angle (p > 0.05). Vestibular cortical bone and total bone thickness measurements showed a significant difference (p < 0.05), whereas no difference was obtained in lingual bone thickness measurements of two imaging methods (p > 0.05).CBCT imaging is recommended in selected patients where recipient bone or bone augmentation site(s) reveal suspect in clinical examination and lateral cephalometric imaging may not reveal the true anatomic structure and relationships.

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