title: Nightguard vital bleaching beneath existing porcelain veneers: a case report.
abstract: Dentist-prescribed, at-home bleaching with 10% carbamide peroxide was used to lighten the apparent color of teeth with preexisting porcelain veneers. Veneers had been placed over unprepared, tetracycline-stained teeth; the translucency of the veneers over the discolored teeth resulted in a graying of the veneers. A custom-fitted tray with no reservoirs and no gingival scalloping was fabricated. A 10% carbamide peroxide material was applied nightly for 9 months to achieve the maximum change in the underlying tooth color. The patient was pleased with the apparent color change. Tooth sensitivity during treatment was minimal (lasting 4 days total); the patient treated sensitivity by brushing with a potassium nitrate-containing toothpaste or applying fluoride in the tray.
authors.affiliation: Department of Oral Rehabilitation, School of Dentistry, Medical College of Georgia, Augusta 30912-1260, USA. VHAYWOOD@MAIL.MCG.EDU
authors.forename: V B
authors.initials: VB
authors.lastname: Haywood
authors.forename: M H
authors.initials: MH
authors.lastname: Parker
mesh_terms: D000328:Adult; D000077463:Carbamide Peroxide; D003776:Dental Porcelain; D003801:Dental Veneers; D004338:Drug Combinations; D005260:Female; D006801:Humans; D007180:Incisor; D008437:Maxilla; D010545:Peroxides; D013754:Tetracyclines / Q000009:adverse effects; D014073:Tooth Bleaching / Q000295:instrumentation / Q000379:methods*; D014075:Tooth Discoloration / Q000139:chemically induced / Q000628:therapy*; D014508:Urea / Q000031:analogs & derivatives*
chemical_list: D004338:Drug Combinations; D010545:Peroxides; D013754:Tetracyclines; D003776:Dental Porcelain; D000077463:Carbamide Peroxide; D014508:Urea