应用技术和应对设计对固的植入物支冠的保留的影响
1Researcher, Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada.
The Journal of prosthetic dentistry
|September 25, 2025
概括
这项研究发现,受控的水泥应用和通风或优化的应对设计提供了更安全,更有效的替代方案,而不是传统的批量填充水泥保留植入物冠,减少多余的水泥和改善保留.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料科学 牙科材料科学
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 固定在水泥上的植入物冠面临来自过度水泥挤出和由于技术和应对设计而导致的可变保留的生物风险.
- 混凝土体积,应用和通风对保持和边缘密封的生物力学和水力动力学影响尚未完全理解.
研究的目的:
- 在体外环境中研究水泥体积,应用方法和应对设计对皇冠保留和水泥挤出的影响.
- 为了比较不同的水泥化策略,用于水泥保留植入物修复.
主要方法:
- 在五个组中测试了50个CNC造的不钢件:封闭式用测量水泥 (老化/不老化) 和填充水泥 (老化/不老化),开放式通风用填充水泥 (老化).
- 水泥挤出和净保留水泥是按重量计算的. 通过经过老化 (500个热循环) 的脱落测试来测量保留强度.
- 通过染料透和显微镜检查来评估边际完整性. 统计分析包括曼-惠特尼U,克鲁斯卡尔-瓦利斯和ANOVA.
主要成果:
- 测量水泥的应用导致在老化之前和老化后,比散装水泥保留的水泥少.
- 与老化,填充水泥的开放式通风合物相比,与老化,封闭式合物相比,保留水泥的数量显著减少.
- 在老年封闭组中,保留强度是可比的,但在老年开放组中,保持强度更高. 没有观察到边际泄漏.
结论:
- 用透气或优化合剂测量薄膜凝固是一种生物力学上健全和生物学上更安全的替代方案,而不是用于植入物修复的散装填充.
- 标准化水泥应用和优化应对设计可以将水泥转化为精确的密封接口,提高可预测性和安全性.
- 这种方法为水泥保留的植入物修复提供了更可控和可预测的方法,最大限度地减少了生物并发症.
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