02502nab a2200325 a 4500 AR-ReUNN 20260702004756.0 260701s2023 ag |||||||||||||||||spa Corcodel, N. 199416 Hassel, Alexander J. 185865 Sen, S. 199417 Saure, D. 199418 Rammelsberg, Peter 169602 Lux, C. J. 199419 Zingler, S. 199420 Effect of enamel sealants on tooth bleaching and on the color stability of the result 2023 7 páginas The purpose of this in vitro study was to evaluate the effect of enamel sealants on bleaching of natural teeth by use of 40 % hydrogen peroxide in a dental surgery. The color stability of the results from bleaching was, furthermore, determined 10 months after the bleaching procedure. In a standardized setting, four sealants (Pro Seal®, Light Bond™ Sealant, Protecto®, and Clinpro™ XT Varnish) were applied to and removed from human teeth in accordance with the manufacturer's instructions. Natural teeth served as medium; half of the teeth were sealed and the others served as controls. Hydrogen peroxide gel (40 %; Opalescence Boost; Ultradent Products, South Jordan, UT, USA) was used as bleaching agent. Color measurement was performed with a spectroradiometer (Photoresearch PR670) before the bleaching process (T1) and 24 h (T2) and 10 months (T3) after bleaching. The spectroradiometer results were expressed by use of the Commission Internationale de l'Éclairage (CIE) L*a*b* color notation. The L*, a*, and b* values of the sealed and the unsealed surfaces were not significantly different at any time during the study (p > 0.05), irrespective of the sealant used. Ten months after the bleaching process, mean L*, a*, and b* values were lower than at 1-day post-bleaching; the mean value of ?E between 1-day post-bleaching and 10 months post-bleaching was 2.46 (±3.1). The results of the study suggest that the effectiveness of professional tooth whitening is not appreciably affected by the application of the four sealants tested. Color 15281 Selladores de Esmalte 199421 Estetico 175097 Ortodoncia 10277 Espectorradiometro 199422 Blanqueamiento Dental 166394 Odontology 1618-1247 v. 105 n. 2 (2017) 257190 ART (ODN)65683 266523 266523 266523 AR-ReUNN spa AR-ReUNN aacr2