Comparative characteristics of conventional visual methods and instrumental digital methods for tooth color determination

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Abstract

Shade matching is a challenging step and the major objective in esthetic and restorative dentistry. On many occasions, the production of the accurate target color will not be achieved due to errors in the registration of the target color, or errors in composing the appropriate color of the restoration in the dental laboratory. Thus, the accurate and correct shade matching of tooth and restoration is one of the most important quality criteria for the patient and the key to successful results for the dentist.

Conclusion: Spectrophotometers, colorimeters, intraoral scanners, and imaging systems are useful and relevant tools for tooth color measurement and analysis, and for the quality control of color reproduction. The combination of visual and instrumental methods of tooth color determination will complement each other, leading toward predictable esthetic results.

About the authors

M. M. Hasasna

Peoples’ Friendship University of Russia

Email: dr.akulovich@mail.ru
Russian Federation, 6, Miklukho-Maklaya street, Moscow, 117198

Andrey V. Akulovich

Peoples’ Friendship University of Russia

Author for correspondence.
Email: dr.akulovich@mail.ru

Candidate of Medical Sciences, Professor, Professor of the Department

Russian Federation, 6, Miklukho-Maklaya street, Moscow, 117198

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Supplementary files

Supplementary Files
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1. JATS XML
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2. Fig. 1. VITA Сlassical.

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3. Рис. 2. VITA Toothguide 3D-Master.

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4. Рис. 3. Chomascop Shade Guide.

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5. Рис. 4. Система для создания индивидуальной расцветки Cgtr «My Shade Guide» (Smile Line, Швейцария).

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6. Fig. 5. Spectrophotometer VITA Easyshade V.

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7. Fig. 6. Spectro Shade spectrophotometer.

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8. Fig. 8. Scanner 3Shape TRIOS.

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9. Fig. 9. Image from the display of the 3Shape TRIOS scanner after determining the color of the teeth.

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10. Fig. 10. Visual determination of tooth color using standard colors.

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11. Fig. 11. Use of the "gray card" and polarization filter for photography and further color conversion cottages.

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12. Fig. 7. Working image with various options on the display of the spectrophotometer after measuring the tooth shade.

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