Hormdee Doosadee, Yamsuk Thanwarat, Sutthiprapaporn Pipop
Division of Periodontology, Department of Oral Medical Science, Faculty of Dentistry and Research Group of Chronic Inflammatory Oral Diseases and Systemic Diseases Associated with Oral Health, Khonkaen University, Khon Kaen 40002, Thailand.
Department of Periodontology, Faculty of Dentistry, Khonkaen University, Khon Kaen 40002, Thailand.
Int J Dent. 2020 Sep 9;2020:8844236. doi: 10.1155/2020/8844236. eCollection 2020.
Analyzing palatal soft tissue thickness in cone-beam computed tomography (CBCT) images and evaluating the relationship between tissue thickness and palatal vault angulation.
Out of 1,737 CBCT images, fifty-six images met the inclusion criteria and were included in this cross-sectional study. The palatal vault angle on the maxillary first molar was measured and divided the images into 3 groups. The soft tissue thickness between the maxillary first premolar and second molar was measured at a distance of 3, 6, 7, 8, and 9 mm from the cementoenamel junction. All the image measurements were performed using CBCT-viewer software.
In this study, 56 CBCT images with full permanent maxillary posterior teeth and absence of light scattering were found. The mean age of the patients was 31.59 ± 13.92 years. The moderate and deep palatal vault angle patterns had the greatest and least prevalence, respectively. The average thickness on shallow, moderate, and deep palatal vault groups was 4.02 ± 0.58, 3.75 ± 0.73, and 3.43 ± 0.38 mm, respectively. Furthermore, the mean palatal mucosal thickness was statistically different between the deep and shallow palatal vault angle groups ( < 0.05, power of test 0.8). Based on the Pearson correlation coefficient, there was a negative correlation between the palatal mucosal thickness and palatal vault angle ( < 0.05, power of test 0.85).
A negative correlation between the palatal mucosal thickness and palatal vault angle was observed. Furthermore, this study suggested that the shape of the palatal vault can be one of the supporting data for evaluating the graft dimensions.
分析锥形束计算机断层扫描（CBCT）图像中的腭部软组织厚度，并评估组织厚度与腭穹窿角度之间的关系。
在1737张CBCT图像中，56张图像符合纳入标准并被纳入本横断面研究。测量上颌第一磨牙处的腭穹窿角度，并将图像分为3组。在上颌第一前磨牙和第二磨牙之间，从牙釉质牙骨质界3、6、7、8和9毫米处测量软组织厚度。所有图像测量均使用CBCT-viewer软件进行。
在本研究中，发现56张具有完整上颌恒牙后牙且无光线散射的CBCT图像。患者的平均年龄为31.59±13.92岁。中度和深度腭穹窿角度模式的患病率分别最高和最低。浅、中、深腭穹窿组的平均厚度分别为4.02±0.58、3.75±0.73和3.43±0.38毫米。此外，深度和浅度腭穹窿角度组之间的平均腭黏膜厚度在统计学上存在差异（<0.05，检验效能0.8）。基于Pearson相关系数，腭黏膜厚度与腭穹窿角度之间存在负相关（<0.05，检验效能0.85）。
观察到腭黏膜厚度与腭穹窿角度之间存在负相关。此外，本研究表明，腭穹窿的形状可以作为评估移植尺寸的支持数据之一。
