title: Effect of enamel sealants on tooth bleaching and on the color stability of the result.
abstract: 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 ΔE 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.
authors.affiliation: Department of Prosthodontics, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Corcodel
authors.affiliation: Department of Prosthodontics, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
authors.forename: A J
authors.initials: AJ
authors.lastname: Hassel
authors.affiliation: Department of Orthodontics, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Sen
authors.affiliation: Institute of Medical Biometry and Informatics, University of Heidelberg, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Saure
authors.affiliation: Department of Prosthodontics, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
authors.forename: P
authors.initials: P
authors.lastname: Rammelsberg
authors.affiliation: Department of Orthodontics, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
authors.forename: C J
authors.initials: CJ
authors.lastname: Lux
authors.affiliation: Department of Orthodontics, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany. sebastian.zingler@med.uni-heidelberg.de.
authors.forename: S
authors.initials: S
authors.lastname: Zingler
mesh_terms: D003116:Color; D003188:Composite Resins; D003743:Dental Enamel / Q000187:drug effects*; D006861:Hydrogen Peroxide; D066298:In Vitro Techniques; D000068897:Iridescence; D008689:Methacrylates; D010895:Pit and Fissure Sealants / Q000494:pharmacology*; D019279:Resin Cements; D017640:Silicates; D014073:Tooth Bleaching / Q000379:methods*
chemical_list: C500418:Clinpro Sealant; D003188:Composite Resins; C000617893:Light Bond; D008689:Methacrylates; D010895:Pit and Fissure Sealants; C501632:Pro Seal; D019279:Resin Cements; D017640:Silicates; C030887:Protecto; D006861:Hydrogen Peroxide
keywords: Color; Enamel sealants; Esthetic; Orthodontics; Spectroradiometer; Tooth bleaching