Estudio in vitro de la estabilidad de color post aclaramiento mediante la aplicación de diversas sustancias pigmentantes.

Abstract

INTRODUCTION: Dental whitening is a safe and highly effective procedure in most cases, being requested by patients seeking to improve the aesthetics of their smile, there are drinks that can alter the final tone of this treatment, the substances with the greatest evidence of being able to pigment the teeth are coffee, black soft drinks and wine. OBJECTIVE: To measure post-lightening color stability after the application of pigmenting substances. MATERIALS AND METHODS: A total of 60 teeth were filtered, for which 6 samples were prepared consisting of 3 lightened groups and 3 non-lightened groups, each sample contains 12 dental units, the 6 blocks were submerged in pigmenting substances such as wine, the coffee and coca cola to then take the shade, for this the Vita Easy Shade advance 4.0 spectrophotometer was used with the CIELAB color coding, for the lightening group 4 shades were taken and for the control group 3 shades , the data were averaged and subsequently compared to obtain the final results. RESULTS: Significant differences were found between the lightened groups and the control groups, in the Delta E result, the substance with the greatest pigmenting potential was wine, the greatest color change was evident at 96 hours, the canine was the dental group. with greater change in the final color, the pH had no direct relationship with the color change. CONCLUSION: In the study it was possible to demonstrate that there is a significant change in the color stability after whitening of the observed samples, it took about 48 hours to show these changes, wine being the drink that most affected the color of the teeth. The canine was the tooth that presented the greatest change in tone and it was possible to verify that the pH does not have a direct relationship in the alteration of color by means of the substances. Keywords: Dental whitening, pigmenting substances, tooth color, soft drinks, coffee, wine, hydrogen peroxide.