传统和数字印记之间的比较,以确定直线和曲线三种植入物的轴和距离:一个体外研究
Gil Ben-Izhack1, Ophir Rosner1, Eran Zenziper1
1Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv 6997801, Israel.
Journal of clinical medicine
|April 27, 2024
概括
传统和数字牙印记都可靠用于直线和曲线的植入物放置. 然而,与数字方法相比,曲线显著增加了传统方法的平均误差.
科学领域:
- 牙科植入物学 牙科植入物学
- 数字牙科数字牙科
- 打印技术 打印技术
背景情况:
- 评估牙印记技术的准确性对于成功的植入物修复至关重要.
- 传统的 (聚) 和数字 (口内扫描仪) 打印方法被广泛使用.
- 植入物对齐 (直线与曲线) 对印记精度的影响需要进一步调查.
研究的目的:
- 为了比较三单元植入物修复的传统和数字印记的准确性.
- 为了评估直线与曲线植入物对齐对印记参数的影响.
- 评估实验室扫描仪 (LBS) 与口内扫描仪 (IOS) 在捕捉植入物位置方面的可靠性.
主要方法:
- 制造两个3D打印模型与三个内部六边形植入器类似物,直线 (15-17) 和曲线 (12-14).
- 使用实验室扫描仪 (LBS) 作为参考和内部口腔扫描仪 (Primescan) 进行数字印记 (n=10) 的模型扫描.
- 使用聚乙烯材料 (每组n=25) 获取常规印记,然后进行石膏模型制造和扫描.
主要成果:
- 传统方法显示曲线模型中的平均误差明显高于直线模型的大多数参数的平均误差 (p < 0.05).
- 数字方法在半个参数的曲线模型中显示出明显更高的平均误差 (p < 0.05).
- 在直线模型和曲线模型中,对于大多数变量,传统方法和数字方法之间没有发现平均误差的显著差异.
结论:
- 植入物对齐的曲率显著影响传统印记方法的平均误差.
- 传统和数字印记技术都证明了直线和曲线植入物安排的可靠性.
- 数字打印技术提供与传统方法相比的准确性,即使在具有挑战性的曲线配置中.
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