四种植入物支的超额外的压力分布,倾斜的标准尺寸植入物和迷你植入物
Isil Turp1, Volkan Turp2, İlkin Tuncel3
1Bezmialem Vakif University, Faculty of Dentistry, Department of Prosthodontics, İstanbul,Turkiye.
European oral research
|July 16, 2024
概括
与轴向植入物相比,支下额外的倾斜植入物可以减少压力. 这可能会减少假肢并发症,但植入物周围的疲劳骨折需要小心.
科学领域:
- 生物材料科学 生物材料科学
- 牙科植入物学 牙科植入物学
- 生物力学 生物力学
背景情况:
- 部过度合提供了更好的功能和美学.
- 植入物支持的过度合增强了稳定性和患者的满意度.
- 了解压力分布对于长期的植入成功至关重要.
研究的目的:
- 为了评估下下外的压力分布,支持倾斜植入物和迷你植入物.
- 为了比较轴向,倾斜和迷你植入物配置之间的应力模式.
- 评估不同负载方向对应力分布的影响.
主要方法:
- 创造了三维有限元素模型的下骨过长牙.
- 模型包括四个轴向标准尺寸植入物 (SA),四个倾斜标准尺寸植入物 (ST) 和四个迷你植入物 (MA).
- 在不同方向 (双侧垂直,单侧垂直,斜背部,切口垂直) 施加100N负荷.
主要成果:
- 与轴向负荷相比,非轴向后部负荷导致植入物和假肢部件的应力更高.
- 倾斜植入物 (ST) 模型的应力值低于标准轴向 (SA) 模型.
- 过度开口的压力主要集中在背部负荷下的植入物周围.
结论:
- 倾斜的植入物 (ST) 配置可能会导致更少的假肢并发症.
- 在过度植牙中,植入物周围可能出现疲劳骨折,因此需要采取预防措施.
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