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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Mandibular Lingual Concavity: A Cross-sectional Analysis using Cone Beam Computed Tomography
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Mandibular Lingual Concavity: A Cross-sectional Analysis using Cone Beam Computed Tomography

机译：下颌舌凹面：使用锥束计算机断层扫描的横截面分析

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Cross-sectional analysis using Cone Beam Computed Tomography (CBCT) is appropriate for assessment of lingual undercuts and prevention of lingual cortex perforation and subsequent complications.Aim: This study aimed to assess the mandibular lingual undercut in the first molar site on CBCT scans to prevent lingual cortex perforation during implant insertion.Materials and Methods: This cross-sectional study was conducted on 164 CBCT scans (77 males and 87 females with a mean age of 43.9±12.3 years). The following information was collected: Type of ridge morphology (U: lingual undercut, C: convex, P: parallel), ridge width, ridge height, the angle between the lingual surface and the line drawn above the canal, distance between the deepest point in the lingual surface and the line drawn perpendicular to the lingual surface, distance between the most prominent point of the lingual surface and the ridge crest and distance between the most prominent point in the lingual surface and the inferior border of the mandible. Analysis of variance and t-test were used to compare mean values of CBCT measurements between gender and age groups.Results: Type U (50%) was the most common type followed by type C (26.2%) and type P (23.8%). No significant correlation was noted between age and depth of lingual undercut or type of ridge morphology or between ridge morphology and gender (p>0.05). Ridge height (p=0.002) and distance between the most prominent point of the ridge and the ridge crest (p=0.021) were significantly greater in males than in females.Conclusion: Type U ridge morphology had the highest prevalence. Mandibular lingual concavity must be taken into account during implant placement to prevent accidental perforation of lingual plate.
机译：使用锥形束计算机断层扫描（CBCT）进行的横截面分析适用于评估舌根底切和预防舌皮质穿孔和随后的并发症。目的：本研究旨在评估CBCT第一磨牙部位的下颌舌根底切材料和方法：这项横断面研究是针对164例CBCT扫描（男性77例，女性87例，平均年龄43.9±12.3岁）进行的。收集了以下信息：脊的形态类型（U：舌底切，C：凸，P：平行），脊宽度，脊高度，舌表面与运河上方绘制的线之间的角度，最深点之间的距离在舌表面和垂直于舌表面绘制的线中，舌表面最突出点与脊顶之间的距离以及舌表面最突出点与下颌骨下边界之间的距离。使用方差分析和t检验比较性别和年龄组之间CBCT测量值的平均值。结果：U型（50％）是最常见的类型，其次是C型（26.2％）和P型（ 23.8％）。年龄和舌根切入深度或脊形态类型或脊形态与性别之间无显着相关性（p> 0.05）。雄性的脊高（p = 0.002）和脊最突出点与脊的顶峰之间的距离（p = 0.021）明显大于雌性。结论：U型脊形态的患病率最高。植入种植体时必须考虑下颌舌凹度，以防止意外舌板穿孔。

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