不同的仪器技术和临床经验对阴影匹配的影响
Sina Saygılı1, Berkman Albayrak2, Tonguç Sülün1
1Department of Prosthodontics, Istanbul University Faculty of Dentistry, Istanbul, Turkey.
概括
使用交叉偏振摄影和口内扫描仪进行数字阴影匹配,未达到临床可接受性值. 经验影响了非极化阴影匹配的成功,但扫描仪的可靠性很差.
科学领域:
- 牙科材料科学 牙科材料科学
- 数字牙科数字牙科
- 在假牙科的颜色科学.
背景情况:
- 精确的牙色调匹配对于美学修复至关重要.
- 仪器技术和临床经验显著影响阴影匹配的成功.
- 数字摄影和口内扫描仪越来越多地用于阴影评估.
研究的目的:
- 评估交叉偏振数字摄影和牙阴影匹配的口内扫描仪的有效性.
- 评估临床经验对阴影匹配精度的影响.
- 将数字阴影匹配结果与临床可接受性值进行比较.
主要方法:
- 使用Vita Easyshade和口腔内扫描 (TRIOS 3) 的牙科模型的色彩分析.
- 数字照片 (交叉偏振和非偏振) 的模型和阴影选项卡被捕获.
- 四组 (牙修复学院,研究生,本科生,牙科技术人员) 在一个校准的屏幕上进行了阴影匹配.
- 使用色度计计算颜色差异 (ΔE00),并与1.80可接受度值进行比较.
主要成果:
- 无论是交叉偏振还是非偏振摄影,都没有达到阴影匹配的临床可接受性值.
- 研究生在与不同摄影技术相匹配的阴影中显示出显著的差异 (p=0.02).
- 本科生表现明显差于其他组 (ΔE00=5.57 ± 1.07).
- 内口扫描结果显示与光谱相光仪数据的相关性很差 (kappa=0.10,p=0.32).
结论:
- 交叉偏振技术在阴影匹配方面没有比非偏振技术的优势.
- 临床经验可能与使用非极化图像的阴影匹配精度有积极的相关性.
- 评估的数字阴影匹配方法未能满足临床接受标准.
- 在这项研究中,口内扫描仪在阴影匹配方面表现不佳.
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