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改变部线程斜率对牙植入物的初级稳定性的影响
Lászlo Major1, Ibrahim Barrak1, Gábor Braunitzer2
1Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Szeged, 6720 Szeged, Hungary.
Journal of clinical medicine
|January 28, 2026
概括
在牙科植入物上增加冠状线密度可以降低插入扭矩,而不会损害软骨的稳定性. 这种修改后的植入物设计为各种骨质提供了优势,确保了立即加载的稳定性.
科学领域:
- 牙科植入物学 牙科植入物学
- 生物材料工程 生物材料工程
- 手术用材料 手术用材料
背景情况:
- 牙植入物的宏观几何和形状极大地影响了初级稳定性和插入扭矩.
- 高插入扭矩可以在牙植入物放置期间带来挑战.
- 优化植入物设计对于可预测的初级稳定性至关重要.
研究的目的:
- 评估是否增加冠状线密度会降低牙植入物插入扭矩.
- 评估是否减少插入扭矩会损害初级植入物的稳定性.
- 为了比较一个修改后的植入物与增加的冠状线密度与标准设计.
主要方法:
- 测试了两种形植入物设计 (Ø4.2 × 11.5毫米),不同的冠状线程距离.
- 植入物被插入到聚氨块中,模拟高密度 (D1) 和低密度 (D3) 的骨.
- 通过共振频率分析测量了插入扭矩 (IT) 和植入物稳定率 (ISQ).
主要成果:
- 在D1骨中,标准植入物与修改设计相比,具有更高的IT和ISQ.
- 更高的插入扭矩负面预测了植入物稳定率 (ISQ).
- 在D3骨中,标准植入物显示IT更高,但ISQ在设计之间是可比的.
结论:
- 增加冠状线密度有效地降低了在软骨中插入扭矩,而不会牺牲稳定性.
- 修改后的植入物设计提供了足够的ISQ,可以在密集的骨中立即加载.
- 这种设计修改在各种骨质中具有优势,优化了植入物放置.
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