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Updated: May 30, 2026
A Standardized Approach to Extra-Oral and Intra-Oral Digital Photography
Published on: July 22, 2022
[Application of digital photography in color matching in dentistry]
Xiao-ting Shen1, Yi Fan, Li Liu
1The Affiliated Stomatology Hospital, College of Medicine, Zhejiang University, Hangzhou 310006, China.
Objective:
To develop a new color matching method in dentistry by application of digital photography.
Methods:
Digital photographs were obtained of Vitapan 3D-Master shade guide and natural teeth under the same condition, the L*a*b* values of each digital photography were assessed and analyzed by Photoshop CS4.
Results:
The Vitapan 3D-Master shade guide was divided into 5 groups, the L* values were similar in each group, but decreased from group 1 to 5. The a* values of L1.5 and L2.5 were minimum, R1.5 and R2.5 were maximum and M1-M3 were intermediate. Compared with Vitapan 3D-Master shade guide, the L*a*b* values of natural teeth were higher.
Conclusion:
Digital photography can basically reflect the color of Vitapan 3D-Master shade guide, and provides a reference for color matching in dentistry.
