计算机辅助设计和计算机辅助制造固定支器的元素组成,耐腐蚀性和机械性能与传统固定支器相比
Yasuhiro Namura1, Helen Pullisaar2, Heidi Vanessa Holm3
1Department of Orthodontics, Nihon University School of Dentistry.
Journal of oral science
|February 25, 2024
概括
计算机辅助设计和计算机辅助制造 (CAD-CAM) 保持器显示出有希望的耐腐蚀性和灵活性,尽管与传统固定保持器 (FR) 相比,拉伸强度较低. 对CAD-CAM材料的进一步研究是有必要的.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 矯正牙科 矯正牙科是一種矯正牙科.
背景情况:
- 牙保持器对于保持正牙治疗结果至关重要.
- 评估像CAD-CAM (计算机辅助设计和计算机辅助制造) 保持器这样的新材料对于改善患者护理至关重要.
- 了解材料特性是预测临床性能和寿命的关键.
研究的目的:
- 为了比较CAD-CAM保持器的元素组成,耐腐蚀性和机械性能与传统的固定保持器 (FR).
- 评估CAD-CAM技术对于制造牙科支器的适用性.
主要方法:
- 使用能量分散式X射线光谱学分析了八种不同的保持线的元素组成.
- 通过根据ISO 10271:2020指南测量泄漏率来评估耐腐蚀性.
- 测试和统计分析了机械性能,包括硬度 (维克斯方法) 和抗拉强度.
主要成果:
- 在所有电线中检测到;CAD-CAM-FR电线的含量更高,没有可测量的泄漏.
- 金电线的泄漏率最高,但仍符合ISO标准.
- 与其他电线相比,CAD-CAM-FR电线表现出最低的硬度和明显较低的抗拉强度,尽管与线保持器相比.
结论:
- 在CAD-CAM-FR线的低硬度表明良好的灵活性和高耐腐蚀性.
- CAD-CAM保持器为正牙应用提供了一个可行的替代方案,具有有利的材料特性.
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