在下牙中,牙根 (radix entomolaris) 的形态型分层
Siva Shankar Dev1, Ramya Ramadoss1, K Nitya1
1Department of Oral Biology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, India.
Journal of oral biology and craniofacial research
|October 27, 2025
概括
在牙中,牙内 (Radix entomolaris,RE) 带来了内的挑战. 圆束CT和机器学习有效地分类根管解剖学,改善复杂病例的治疗计划.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科解剖学 牙科解剖学
- 放射学 放射学是一门学科.
- 在牙科领域的机器学习
背景情况:
- 牙内 (Radix entomolaris,RE) 是下牙中的一个超数根,由于其复杂的解剖结构,这给牙内治疗带来了重大挑战.
- 传统的放射学往往无法检测RE,增加了错过通道和治疗失败的风险.
研究的目的:
- 用圆束计算断层扫描 (CBCT) 来描述RE的形态复杂性.
- 开发机器学习 (ML) 模型来分类根运河形态型和预测RE中的解剖分叉.
主要方法:
- 有RE的100个下第一个牙经历了高分辨率的CBCT扫描.
- 形态参数 (通道曲率,面积,圆度,体积,根融合) 被提取并用于训练ML模型.
- 一个决策树分类器预测了分叉,K-意味着聚类分层形态型.
主要成果:
- 在预测分叉时,ML模型实现了高准确性 (F1得分为0.87).
- 体积运河大小是分叉的最强预测因素 (AUC=0.81).
- 确定了两种形态型:简单 (圆形) 和复杂 (不规则/分叉/C形);27%显示中根分叉.
结论:
- 从CBCT衍生出来的特征,特别是通道体积和曲率,有效地预测了RE复杂性.
- 整合这些特征的ML模型为个性化内牙科规划提供了一个框架.
- 人工智能辅助诊断可以改善复杂根管解剖学的管理.
相关概念视频
Teeth
1.6K
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
1.6K
Radicals: Electronic Structure and Geometry
4.9K
This lesson delves into the geometry of a radical, which is influenced by the electronic structure of the molecule. The principle is similar to that of a lone pair, where the unpaired electron influences the geometry at the radical center.
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
4.9K


