制造方法对临时修复的边缘适合性的影响
Thaís Cristina Mendes Rodrigues1, Caio Cesar Dias Resende2, Guilherme Faria Moura3
1Private practice. Uberlândia, MG, Brazil.
Brazilian oral research
|July 17, 2024
概括
与传统方法和削相比,临时牙科修复的三维打印 (3D打印) 显示出更大的边缘不适合. 传统的椅子边和磨床修复为临时牙假体提供了更有利的边缘适应.
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
- 数字牙科数字牙科
背景情况:
- 计算机辅助制造 (CAM) 为牙科修复提供了各种各样的制造技术.
- 评估临时修复的边际适合性对于临床成功和寿命至关重要.
- 数字牙科的进步包括削和3D打印作为传统方法的替代品.
研究的目的:
- 为了比较通过传统的椅边方法,削和3D打印制造的临时修复的边缘适合性.
- 使用扫描电子显微镜 (SEM) 在不同的螺丝紧固条件下评估不合适.
主要方法:
- 使用三种方法制造了15个三元临时修复标本:传统的椅子边 (GC),削 (GM) 和3D打印 (GP).
- 使用SEM在两个条件下评估了边际合适性:中央螺丝拉紧和所有螺丝拉紧.
- 横向不合适被分类 (超,等,不足扩展) 并使用图基-克莱默测试 (α=0.05) 进行统计分析.
主要成果:
- 与制 (GM) 和传统 (GC) 修复相比,三维打印 (GP) 修复显示出明显更大的垂直不合适 (P<0.05).
- 在3D打印组 (GP) 中,水平不合适明显高于在制 (GM) 和传统 (GC) 组中.
- 与3D打印相比,传统和磨砂临时修复显示出更好的边缘适应性.
结论:
- 传统的椅子边制造和削可以比3D打印更准确地为临时修复提供更准确的边缘适配.
- 当前的3D打印技术可能需要进一步优化,以便在临时牙科修复中实现最佳边缘适应.
- 削和传统技术仍然是制造具有可预测的边际完整性的临时修复的可靠选择.
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