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Comparison of two digital devices 3shape TRIOS3 and Vita easyshade V in determining the color of ceramic samples based on the spectroradiometric reference system
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Reza Nahidi *    |
| Azad Islamic University |
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Abstract: (570 Views) |
Abstract
Background and Aim: Nowadays, color matching is one of the most challenging issues in dental restorations and cosmetic dentistry. As natural teeth have a wide range of colors, the proportionality of restoration or prosthesis to the remaining teeth, especially in the anterior region, is important. This study was conducted with the aim of comparing two digital devices in determining the color of ceramic samples based on the reference system of spectroradiometry.
Materials and Methods: This laboratory experimental study was performed on 48 ceramic samples of A1, B1, C1, and D2 feldspathic ceramics, with six disks of each color, according to the Vita classic shade guide with a diameter of 0.12±0.5 mm and a thickness of 2±0.5 mm. Each of the three digital devices, Vita Easyshade, 3Shape TRIOS3, and CS2000, were calibrated according to the manufacturer's instructions before starting work. In this color evaluation, each ceramic sample was matched with the reference system of CS2000 based on l, a, and b values. Then, ceramic samples were color matched with Vita Easyshade and 3Shape TRIOS3 devices based on CIE lab and Vita classic. The difference in color determination by the three digital devices compared to the reference system was evaluated by SPSS version 26 software and chi-square test (p<0.05).
Results: The 3Shape TRIOS3 group had a 66.7% error rate, while the VITA Easyshade V group had a 25% error rate. The difference in the false measurement rate between the two methods was significant (p<0.005), and using the 3Shape TRIOS3 device increased the chance of error by 2.667 times (O.R=2.667).
Conclusion: Determining color with the VITA Easyshade V device is better and more accurate than determining color with the 3Shape TRIOS3 device.
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| Keywords: Spectroradiometer, Color coordinate, All-ceramics |
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Full-Text [PDF 615 kb]
(429 Downloads)
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Type of Study: original article |
Subject:
Prothesis
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