![]() ![]() The purpose of this study was to evaluate and compare the shade matching ability of four different dental occupational groups - dental technicians (DTs), residents in prosthodontics (RPs), specialists in prosthodontics (SPs) and dental students (DSs) using the VITA 3D-Master shade guide. It allows a dentist to systematically select tooth shades by determining color appearances in accordance with natural tooth color observation under the standardized artificial daylight and color temperature of 5500 K ( 15, 16). In order to assess tooth color using the 3D Master shade guide as precise as possible and practice the procedure, the system known as the Toothguide Training Box (TTB) Mark II (Vita Zahnfabrik, Bad Sackingen, Germany) was developed to help dentists with tooth shade selection ( 12- 14). On the other hand, despite its widespread use, the VITA Classical A1-D4 shade guide demonstrated some difficulties with the shades that were not grouped systematically, and with the development of the 3D-Master shade guide a more systematic approach toward shade matching, with color distribution performed according to Munsell’s principles, was introduced in dentistry ( 10, 11). When it comes to teaching methods, a survey of European dental students published in 2011 showed that for educational purposes the most commonly used is VITA Classical A1-D4 shade guide (17-67%), followed by the VITA 3D-Master (0-47%) ( 9). proved that VITA Classical A1-D4 and VITA 3D-Master shadeguides are the most frequently used shade guides ( 8). The research carried out by Paravina et al. ![]() But color evaluation by visual comparison is a subjective method which is difficult to perform because of different environmental influences, a viewer’s interpretation and tools used ( 2- 7). The visual analysis of natural tooth in comparison with shade guide is the fastest and least expensive method, most frequently used in dentistry ( 1). Therefore, the shade determination is an important procedure in everyday dental practice, not only when using ceramic material, but also when using resins. An accurate color of restoration is of a great importance to patients’ satisfaction with esthetic dental outcome. ![]()
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