评估前牙皇冠-根形态和膜骨结构在闭合深度超咬伤的患者使用形束计算断层扫描
Chenxin Tang1,2,3, Shuang Han4,5,6, Shusi Wang3
1Hefei Stomatology Clinical College of Anhui Medical University, Hefei, 230001, China.
Scientific reports
|October 21, 2024
概括
圆束计算机断层扫描揭示了在II类二分部缺陷中明显的皇冠根形态和膜骨差异. 这些发现突出了深度超咬病例中独特的解剖特征.
科学领域:
- 牙科 牙科是指牙科的专业.
- 矯正牙科 矯正牙科是一種矯正牙科.
- 放射学 放射学是一门学科.
背景情况:
- 深度超咬,特别是二级二分二缺陷,在正牙治疗中提出了独特的挑战.
- 了解牙形态与膜骨结构之间的复杂关系对于有效的治疗计划至关重要.
- 圆束计算机断层扫描 (CBCT) 提供了对面解剖学的详细见解.
研究的目的:
- 调查和比较冠根形态和膜骨结构在切口区域的受试者与封闭的深度超咬 (II类二级).
- 为了比较这些参数之间的性别和年龄组在II类二级队列.
- 为了确定II类二次分裂2缺陷,II类一次分裂1缺陷和正常缺陷之间的差异.
主要方法:
- 使用CBCT成像的回顾性研究.
- 分析了40名II类第2划分异常闭塞患者,20名正常闭塞患者,20名II类第1划分异常闭塞患者.
- 测量前牙的皇冠-根比,皇冠-根角和膜骨结构 (厚度和高度).
主要成果:
- 与正常封闭和II类第1组相比,II类第2组对象表现出较高的上和下前牙的皇冠根比率 (P <0.05).
- 在二级二级二级科目对象的上前牙上观察到较小的皇冠-根角.
- 部中央切口器显示,膜骨厚度降低,身高增加在二级二级二级对象中. 年龄和性别影响了根的长度和冠根角.
结论:
- 二级二分二缺陷的特点是前牙向内置,导致特定的冠根形态和改变的气囊骨.
- 与对照组相比,皇冠-根比率,角度和膜骨结构存在显著差异.
- 谨慎的正牙管理,包括扭矩控制和适当的力,对于减轻骨和根吸收等风险至关重要.
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