面部测量的精度:数字3D扫描仪与模拟仪器之间的比较分析
Francesco Puleio1, Giorgio Lo Giudice1, Angela Alibrandi2
1Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Messina University, 98122 Messina, Italy.
Dentistry journal
|September 26, 2025
概括
数字3D面部扫描显示,在6.5厘米以下的测量时,准确度相当于校准器. 然而,对于更大的面部测量,数字扫描技术表现出显著的偏差,需要混合方法来获得临床精度.
科学领域:
- 牙科 牙科是指牙科的专业.
- 医疗成像医学成像
- 生物识别信息 生物识别信息
背景情况:
- 准确的面部比例分析对于有效的牙科治疗计划至关重要.
- 数字扫描技术为面部测量提供了潜在的进步.
- 与传统方法相比,评估这些数字工具的精度至关重要.
研究的目的:
- 为了评估Planmeca ProFace 3D扫描仪的准确性.
- 为了将扫描仪的数字测量与模拟校准测量进行比较.
- 为了确定两个测量技术之间的可靠性和一致性.
主要方法:
- 一项涉及七名患者的比较横截面研究.
- 使用数字扫描和模拟校准仪,测量了14个标准化面部标志.
- 将测量结果分成小 (≤6.5厘米) 和大 (≥6.5厘米) 类别进行分析.
- 使用配对的t测试,克朗巴赫的阿尔法和布兰德-阿尔特曼分析进行统计分析.
主要成果:
- 在数字和模拟测量之间发现了小 (p=0.016) 和大 (p=0.001) 距离的统计学上显著差异.
- 在小型测量中观察到高可靠性 (Cronbach's Alpha = 0.982),但在大型测量中观察到低可靠性 (Cronbach's Alpha = 0.270).
- 布兰德-阿尔特曼分析表明正比偏差,对于更大的面部测量来说,差异越来越大.
结论:
- 数字面部扫描提供与模拟方法重叠的精度,用于≤6.5厘米的测量.
- 在测量>6.5厘米的数字扫描中发生了显著的偏差.
- 建议采用混合方法或补偿策略,以确保数字面部分析的临床精度.
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