不同的制造材料对使用光谱扫描仪全弧修复的精度和配件的影响-体外实验室研究
Paulo Sergio Borella1, Abidiel Silva Guimaraes2, Thais Silva Mendonça2
1Department of Prosthodontics, School of Dentistry, Virginia Commonwealth University, Richmond, Virginia, USA.
概括
摄像度扫描对于植入物位置是准确的,但制造材料显著影响完整的门恢复适合. 与树脂相比,和合金提供了更高的精度和被动适合.
科学领域:
- 牙科材料科学 牙科材料科学
- 数字牙科数字牙科
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 摄影仪在数字牙科中越来越多地用于捕捉复杂的几何形状.
- 数字工作流程的准确性取决于扫描技术和制造的修复材料的材料特性.
- 评估不同材料对基于光谱的全弧修复精度的影响对于临床成功至关重要.
研究的目的:
- 为了评估光谱扫描仪用于全弧植入物修复的准确性.
- 评估四种不同的制造材料 (三维打印树脂,磨砂树脂,,) 如何影响这些修复的准确性和被动适合性.
主要方法:
- 六种植入体支柱类型被用于为四个材料组 (每组n=9) 创建一个造.
- 最初的扫描是使用光谱扫描仪进行的,随后是修复设计和制造.
- 用扫描体反向扫描评估了线性和角度偏差 (RMSE),被动适合被定性评估.
主要成果:
- 在材料组之间观察到精度的显著差异 (p < 0.05).
- 和石表现出最低的偏差和优越的被动适配.
- 3D打印树脂 (OnX) 显示了最高的偏差和不一致的适合,而磨砂树脂 (PMMA) 显示了中等的结果.
结论:
- 摄影测量可以捕捉出具有临床可接受性的植入物位置.
- 制造材料的选择极大地影响了摄像度学衍生的全门修复的准确性和被动适合性.
- 最终修复时建议使用和;临时修复时使用PMMA;3D打印树脂的可靠性有限.
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