使用两种分光光度计系统（Vita Easyshade和Degudent Shadepilot）评估比色准确性。
Evaluation of accuracy of shade selection using two spectrophotometer systems: Vita Easyshade and Degudent Shadepilot.
作者信息
Kalantari Mohammad Hassan, Ghoraishian Seyed Ahmad, Mohaghegh Mina
机构信息
Department of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
出版信息
Eur J Dent. 2017 Apr-Jun;11(2):196-200. doi: 10.4103/ejd.ejd_195_16.
OBJECTIVE
The aim of this study was to evaluate the accuracy of shade matching using two spectrophotometric devices.
MATERIALS AND METHODS
Thirteen patients who require a full coverage restoration for one of their maxillary central incisors were selected while the adjacent central incisor was intact. 3 same frameworks were constructed for each tooth using computer-aided design and computer-aided manufacturing technology. Shade matching was performed using Vita Easyshade spectrophotometer, Shadepilot spectrophotometer, and Vitapan classical shade guide for the first, second, and third crown subsequently. After application, firing, and glazing of the porcelain, the color was evaluated and scored by five inspectors.
RESULTS
Both spectrophotometric systems showed significantly better results than visual method ( < 0.05) while there were no significant differences between Vita Easyshade and Shadepilot spectrophotometers ( < 0.05).
CONCLUSION
Spectrophotometers are a good substitute for visual color selection methods.
目的
本研究旨在评估使用两种分光光度计进行比色的准确性。
材料与方法
选择13例上颌中切牙需要进行全冠修复且相邻中切牙完好的患者。使用计算机辅助设计和计算机辅助制造技术为每颗牙齿制作3个相同的修复体框架。随后，分别使用Vita Easyshade分光光度计、Shadepilot分光光度计和Vitapan经典比色板对第一、第二和第三个全冠进行比色。在完成烤瓷的涂布、烧制和上釉后，由5名检查员对颜色进行评估并打分。
结果
两种分光光度计系统的结果均显著优于视觉比色法（<0.05），而Vita Easyshade分光光度计和Shadepilot分光光度计之间无显著差异（<0.05）。
结论
分光光度计是视觉颜色选择方法的良好替代品。
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