恢复下牙的压力分布与外部宫再吸收:一个有限元素分析
Tuğrul Aslan1, Emir Esim2, Yakup Üstün3
1Department of Endodontics, Faculty of Dentistry, Erciyes University, Turhan Baytop Street, No:1, Yenidoğan District, 38280, Talas, Kayseri, Turkey. dr.tugrulaslan@hotmail.com.
Odontology
|December 6, 2024
概括
通过使用特殊材料 (如矿物三氧化物聚合物或玻璃离子体水泥) 恢复上外部再吸收,可以减少压力. 未恢复的缺陷显示出更高的压力,而恢复的牙通常是安全的.
科学领域:
- 牙科的生物材料
- 生物机械工程 生物机械工程
- 恢复性牙科 恢复性牙科
背景情况:
- 外部宫再吸收 (ECR) 是一种影响牙的病理过程.
- 修复材料在管理ECR缺陷方面发挥着至关重要的作用.
- 了解压力分布对于预测治疗成功至关重要.
研究的目的:
- 为了评估下牙中压力分布,用各种材料恢复ECR.
- 在ECR缺陷中比较不同修复和仿生材料的生物力学性能.
- 在模拟的力下,评估材料选择对牙完整性的影响.
主要方法:
- 用有限元素分析 (FEA) 来建模下第一个.
- 模拟的"2Bp类"ECR缺陷被复合树脂,玻璃离子体水泥,矿物三氧化物聚合物,Biodentine或BioAggregate恢复.
- 施加了300N的斜力来模拟口负荷.
- 在ECR地区分析了·米塞斯压力.
主要成果:
- 与未恢复的牙相比,恢复ECR缺陷显著减少了压力.
- 复合树脂和高度粘性玻璃离子体水泥在冠状恢复中显示了类似的应力分布.
- 矿物三氧化物聚合物和玻璃离子体水泥在根部的结果是压力度低于Biodentine和BioAggregate.
- 所有恢复的模型,除了未恢复的ECR模型,被认为是安全的.
结论:
- 在下牙中恢复的ECR缺陷通常是生物机械安全的.
- 在根部部分使用矿物三氧化物聚合物或玻璃离子体水泥可能会在ECR区域略有减轻应力.
- 在ECR管理中,材料选择会影响应力分布和牙完整性.
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