CIE L*a* b* values of cervical, middle and incisal segments of permanent maxillary central incisors

ABSTRACT

The objectives of this studs was to compare the CIE L*a*b* values of cervical, middle and incisal segments of permanent maxillary central incisors using standardized digital camera and computer software [Adobe Photoshop]. Maxillary anterior teeth of one hundred subjects were photographed under the same light effects and images were imported into the computer. The CIE L*a*b* values of the cervical middle and incisal segments [2-mm area in the center of each segment] of permanent maxillary central incisors were obtained by using the Adobe Photoshop [version 7]. SPSS version 12 was used for data analysis. Statistical significance was determined by using ANOVA at confidence interval 95%, P<0.05 was considered significant. There is significant difference in L*, a* and b* values of cervical, middle and incisor segments of maxillary central incisor [p<0.001]. Color differences in Cervical/Middle, Cervical/Incisal and Middle/Incisal were significantly different [p = 0.025]. The shade of cervical, middle and incisal segments of permanent maxillary central incisor is significantly different from each other