Clinical Benefit using VITA 3D Master and Classical Color Scale
Objectives: Evaluating the clinical accuracy of VITA 3D Master and Classical color scale, no match templates were used in an in vitro trial.
Methods: 57 students of dentistry from the dental schools of Berlin, Dresden, Greifswald, Leipzig participated in this study. 39 students were female, 18 male with an average age of 23.2 years. All students passed the Ishihara test.
Three sets of each ten ceramic faced crowns were used. Dental technicians had to face the sets with defined colors not within the shade tabs of 3D Master or classical toothshades with additional individualisation. Following, in ten turns, two dentists matched the color of the crowns by the help of VITA Easyshade. The mean results defined the CIELAB data of the templates. The students matched the color of the samples under defined surroundings, distance and light, using special boxes.
The option was to identify the best and a second best match using 3D Master and the Classical color scale in a randomized and double blind design.
Results: For statistical evaluation CIEDE 2000 was used. A comparison of the areas of the triangles with the points 1, LAB of the templates, 2, LAB of the first choice, and 3, LAB of the second choice, was performed.
The areas of the 3D Master had a mean of 22.267, a median of 14.92, and a standard deviation of 19.69. The areas of Classical showed a mean of 25.74, a median of 19.21, and a standard deviation of 20.69.
The areas of 3D Master were clearly smaller than the areas of the Classical. This yielded a better reproducibility for the dentist and the dental technician, and thus also for the patient. The difference was highly significant at p < 0.001.
Conclusions: We can conclude that the 3D Master color scale offers a better option to match tooth color.