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使用STL叠加的口腔内,实验室内扫描仪和PVS印象材料的临床评估
Nader Abdulhameed1, Inessa Slipak2, Alexandra Manibo2
1Restorative Dental Sciences, College of Dentistry, University of Florida, Gainesville, FL 32610, USA.
Dentistry journal
|December 24, 2025
概括
口腔内扫描仪和实验室内扫描仪的扫描质量与可拆卸全牙假牙的扫描质量相当. 重型和轻型体型聚乙烯氧化印记材料与中型和轻型体型相比,提供更高的精度,可与口腔内扫描仪相提并论.
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:
- 准确的印记对于制造可拆卸全牙假牙 (RCD) 至关重要.
- 使用口腔内扫描仪 (IOS) 进行数字印记的准确性与传统的实验室内扫描聚乙烯基 (PVS) 印记是正在进行的研究领域.
- 了解不同PVS印象材料的尺寸稳定性对于临床成功至关重要.
研究的目的:
- 为了比较口腔内扫描仪 (IOS) 与RCD实验室内扫描仪的准确性.
- 为了评估两种类型的PVS打印材料之间的精度差异.
- 与IOS相比,评估PVS印象材料的准确性.
主要方法:
- 14名受试者接受了上和下RCD.
- 使用重型/轻型 (HL) 或中型/轻型 (ML) 车身PVS材料制作印象.
- 用IOS (Trios,Omnicam) 和实验室扫描仪扫描印记;STL文件被分析到60点的间隙测量.
主要成果:
- 在Trios和Omnicam IOS (44 ± 10μm) 之间的精度没有显著差异.
- 在Trios和实验室扫描 (62 ± 21 μm) 之间,以及ML和Trios (66 ± 24 μm) 和HL和MLPVS组 (50 ± 21 μm) 之间发现了显著的差异.
- 在HL PVS和Trios IOS (37 ± 10μm) 之间没有发现显著差异.
结论:
- 内口扫描仪显示了可比的扫描质量.
- 选择PVS印记材料显著影响实验室内扫描的准确性.
- 重型和轻型的PVS材料为完整的假牙提供了准确且尺寸稳定的印记,与IOS相比.
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