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Published on: July 27, 2022
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[Coverage errors of five shade guide systems to vital natural teeth]
Li Chen1, Jian-guo Tan, Ming-yue Liu
1Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China.
Summary
Shade guide D demonstrated superior color coverage accuracy across all regions of natural teeth compared to four other shade guides. This finding is crucial for precise dental shade selection in clinical practice.
Area of Science:
- Dental Materials Science
- Color Science in Dentistry
Background:
- Accurate shade selection is critical for aesthetic dental restorations.
- Existing shade guides exhibit varying degrees of color coverage error (CE).
Purpose of the Study:
- To compare the color coverage errors (CE) of five different dental shade guides.
- To evaluate the performance of shade guides in matching anterior vital natural teeth.
Main Methods:
- Anterior vital natural teeth color coordinates were measured using a Crystaleye spectrophotometer.
- Five shade guides (VITA Classical, VITA 3D-Master, Chromascop, Shofu Vintage Halo NCC, Noritake) were analyzed.
- Color coverage errors were assessed in the cervical, body, and incisal regions of the teeth.
Main Results:
- Shade guide D exhibited the minimal CE in the cervical (1.62 ± 0.75) and incisal (1.28 ± 0.55) regions.
- In the body region, Shade guide D (1.52 ± 0.74) and Shade guide B (1.65 ± 0.64) showed lower CE than guides A, C, and E (P < 0.05).
- Shade guide A consistently showed maximal CE in the cervical and incisal regions.
Conclusions:
- Shade guide D demonstrated superior color coverage accuracy for natural teeth across cervical, body, and incisal regions.
- The findings suggest Shade guide D may offer improved precision in dental shade matching.
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