牙齿颜色选择的照片法与传统方法比较：一项临床评估。
Comparison of photographic and conventional methods for tooth shade selection: A clinical evaluation.
作者信息
Miyajiwala Juzer S, Kheur Mohit G, Patankar Anuya H, Lakha Tabrez A
机构信息
Private Practitioner and Consultant Prosthodontist, Zulekha Hospitals, Sharjah, United Arab Emirates.
Department of Prosthodontics, M.A. Rangoonwala College of Dental Sciences and Research Centre, Pune, Maharashtra, India.
出版信息
J Indian Prosthodont Soc. 2017 Jul-Sep;17(3):273-281. doi: 10.4103/jips.jips_342_16.
AIM
This study aimed to compare three different methods used for shade selection, i.e., visual method, spectrophotometer, and digital photography method.
MATERIALS AND METHODS
Fifty participants were selected from the Out Patient Department of Prosthodontics. Presence of the maxillary right central incisor with no history of any restorative or endodontic procedures was the primary inclusion criterion. The shade of the right maxillary central incisor was determined using all the three shade selection procedures, namely, visual, spectrophotometric, and digital photography method for all the selected participants. The shades obtained in the visual method using a shade guide were noted down for further comparisons. The spectrophotometer reported the L*, a*, and b* values along with the actual shade whereas the digital photography method reported only the L*, a*, and b* values. The agreement between the readings obtained by the three different methods was compared and subjected to appropriate statistical analysis.
RESULTS
The results showed that when the three methods studied were compared, there was a statistically significant proportion of agreement between spectrophotometric and visual method ( < 0.01) with higher proportion of "yes" (agreement) and between the spectrophotometric and digital photography method ( < 0.01) with higher proportion of "yes" (agreement). Coefficient of agreement (using Kappa coefficient) between spectrophotometric and visual shades revealed a fair agreement. The mean ΔE was 1.69. There was a statistically significant difference between the proportion of ΔE more than and <2, between spectrophotometric and digital photography methods ( < 0.01) with higher proportion of <2 ΔE. Furthermore, percentage of agreement between shades obtained by the visual and spectrophotometric method showed maximum agreement with A1 shade.
CONCLUSION
It was concluded that the digital photography method emerged as a reliable method for shade selection in a clinical setup.
目的
本研究旨在比较三种不同的选色方法，即视觉法、分光光度计法和数码摄影法。
材料与方法
从口腔修复科门诊选取50名参与者。主要纳入标准为上颌右侧中切牙存在且无任何修复或牙髓治疗史。对所有选定的参与者，使用视觉、分光光度和数码摄影这三种选色程序来确定右上颌中切牙的颜色。记录使用比色板通过视觉法获得的颜色以便进一步比较。分光光度计报告L*、a和b值以及实际颜色，而数码摄影法仅报告L*、a和b值。比较三种不同方法获得的读数之间的一致性，并进行适当的统计分析。
结果
结果显示，在所研究的三种方法中，分光光度法与视觉法之间在统计学上有显著比例的一致性（<0.01），“是”（一致性）的比例更高；分光光度法与数码摄影法之间也有显著比例的一致性（<0.01），“是”（一致性）的比例更高。分光光度法和视觉颜色之间的一致性系数（使用卡帕系数）显示出尚可的一致性。平均ΔE为1.69。分光光度法和数码摄影法之间，ΔE大于和小于2的比例在统计学上有显著差异（<0.01），ΔE小于2的比例更高。此外，视觉法和分光光度法获得的颜色之间的一致性百分比显示与A1色的一致性最高。
结论
得出的结论是，数码摄影法在临床环境中成为一种可靠的选色方法。
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