在过剩水泥上反向边缘支柱的角度变化的评估:与标准植入物支柱边缘的比较
The Journal of oral implantology
|December 9, 2025
概括
与传统的边缘相比,反边缘支柱显著减少了牙硫中的多余水泥. 反向边缘的30°和45°角在最小化水泥残余方面表现出类似的有效性.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 牙周植入物疾病对牙科植入物成功构成重大威胁.
- 牙硫中的多余水泥是围植入炎的主要危险因素.
- 反向边缘支柱是减轻多余水泥问题的一种解决方案.
研究的目的:
- 为了评估不同的反边缘角度在减少牙中多余水泥的有效性.
- 为了比较30°和45°的反向边缘支柱的减少水泥潜力与标准的边缘支柱.
主要方法:
- 在体外研究中使用3D打印的Ti-6Al-4V合金支柱 (角形,30°反向,45°反向) 和金冠.
- 牙植入物固定装置嵌入了烯酸,放置了支柱,并在受控压力下施加临时水泥.
- 使用数字图像分析 (Adobe Photoshop 2024) 量化了多余的水泥.
主要成果:
- 面边缘的支柱指向水泥在面上进入硫.
- 30°和45°的逆边缘支柱显著减少了与边缘相比的多余水泥 (分别P < .013和P < .001).
- 在30°和45°的反向边缘角之间没有观察到水泥减少的显著差异 (P > .05).
结论:
- 反向边缘支柱在最大限度地减少剩余的过剩水泥方面优于边缘支柱.
- 反向边缘的角度 (30°与45°相比) 并不会显著影响剩余水泥的数量.
- 实施反向边缘支柱可以帮助降低水泥引起的围植疾病的风险.
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