ASSESSMENT OF TEETH COLOR BEFORE AND AFTER THE BLEACHING PROCEDURE USING DIGITAL VISUALIZATION

Dyscoloration of teeth hard tissues is a fairly common problem among the population of our country. Therefore, different methods of teeth whitening treatment are highly popular in the field of modern aesthetic dentistry. Due to a high demand of teeth whitening procedure, there is a great interest in researching the issue of color at dentistry. The main goal. Comparative assessment of tooth color (in vitro) using digital image before and after procedure with a help of a hydrogen peroxide-based whitening system. Materials and methods. The study was conducted on permanent teeth that were removed for orthodontic indications at patients aged from 18 to 39 years. Comparison of effectiveness color change after bleaching procedure was conducted on two halves of teeth divided in a half. The separation was carried out in the longitudinal direction along the axis of the tooth. Teeth whitening was performed according to the following steps: professional dental hygiene/Air Flow/application of the “Beyond” 35% H2O2 whitening gel/12 min, activation with blue light/3 times/remineralization therapy. Results. Comparing digital images of teeth before and after whitening with the “Beyond” system and E according to the CIELAB color space between the colors of two tooth parts we indicate from 22 to 40 units, E 34,0±5,9. The quality of whitening is mostly pronounced at patients with an average degree of staining, in which the tooth shade corresponds to shades from C2 to B3 according to the reorganized VITA scale. Conclusions. The usage of color science at dentistry, combined with instrumental methods of measuring tooth color, allows us for qualitative and accurate determination of shade and whiteness. Our patients experience rapid and safe improvement of tooth color after whitening with the Beyond system, according to the CIE L*a*b* system, E between the colors of two tooth particles is from 22 to 40 units, on average 34.0±5.9 units.