横向中根骨折的压力分析,使用不同的内固定协议进行管理:一项3D有限元素研究
Neha Jasrasaria1, Saumya Johri2, Ramesh Bharti1
1Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India.
European journal of oral sciences
|January 18, 2024
概括
纤维柱和Ribbond splinting比内牙科文件更有效地减少骨折的上切口的压力. 这项有限元素分析 (FEA) 研究强调了治疗根骨折的更好的材料选择.
科学领域:
- 牙科机械 牙科机械
- 生物材料科学 生物材料科学
- 有限元分析 有限元分析
背景情况:
- 大中央切口的中根骨折会损害牙的结构.
- 根内 splinting 是一种治疗选择,但材料的选择影响应力分布.
研究的目的:
- 为了评估压力分布在一个骨折的上中央切口与不同的内根 splinting 材料.
- 为了比较纤维柱,内牙科文件和Ribbond在稳定中根骨折方面的有效性.
主要方法:
- 创建了五个3D有限元素分析 (FEA) 模型:完整的牙,破碎的牙和破碎的牙用纤维柱,Protaper Gold文件F3或Ribbond. splinted.
- ·米塞斯的压力分析了根管,牙,牙周带和骨.
主要成果:
- 根管和牙的最大压力是在纤维后 splinting 观察到的,其次是Protaper Gold和Ribbond.
- 完整的牙模型表现出最少的压力.
- 与完整的牙相比,所有骨折和治疗模型中的骨压力都增加了.
结论:
- 纤维杆和丝带优于内牙科文件,用于中根骨折的根内 splinting.
- 材料的选择对于最大限度地减少压力和潜在地改善治疗断裂的切须的结果至关重要.
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