Efficacy and oral side effects of two highly concentrated tray-based bleaching systems.

Abstract

The aim of this study was to investigate the tooth-whitening efficacy and oral side effects of the two tray-based bleaching systems Visalys whitening (VW) and Opalescence PF (OP). A stratified, randomised distribution of the subjects (n = 60) to two treatment groups was performed according to baseline tooth brightness (L* values) as determined by colourimeter and to the criteria smoker/non-smoker. Tooth colour was evaluated by measuring L*a*b* values generated from standardised digital image analysis with Adobe Photoshop of the facial surfaces of the right central maxillary incisor. Tooth hypersensitivity, with intensity graded from 0 (no hypersensitivity) to 10 (high hypersensitivity), was assessed chair-side using an air syringe. After bleaching therapy, both treatment groups demonstrated significant improvements in tooth colour (p < or = 0.05). A shift towards less yellow (-Deltab*) and brighter (+DeltaL*) tooth colour was observed. Deltab* was significantly higher in the OP group in comparison to the VW group, DeltaL* showed no significant difference between the both treatment groups (p < or = 0.05). After bleaching, the intensity of tooth hypersensitivity was increased significantly compared to baseline in both groups (p < or = 0.05), with no significant difference between the both groups. Both highly concentrated bleaching systems are effective as tooth-whitening systems, with few reported side effects such as transient tooth hypersensitivity.

• Authors: Dirk Ziebolz, Kristina Helms, Christian Hannig, Thomas Attin
• Journal: Clinical oral investigations (Clin Oral Investig) Vol. 11 Issue 3 Pg. 267-75 (Sep 2007) ISSN: 1432-6981 [Print] Germany
• PMID: 17333304 (Publication Type: Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)

Chemical References

• Drug Combinations
• Oxidants
• Peroxides
• Carbamide Peroxide
• Urea
• Hydrogen Peroxide

Topics

• Carbamide Peroxide
• Colorimetry
• Dentin Sensitivity (chemically induced)
• Drug Combinations
• Gingivitis (chemically induced)
• Humans
• Hydrogen Peroxide (administration & dosage, adverse effects)
• Image Processing, Computer-Assisted
• Incisor (drug effects, pathology)
• Mouth (drug effects)
• Oxidants (administration & dosage, adverse effects)
• Pain (chemically induced)
• Peroxides (administration & dosage, adverse effects)
• Photography, Dental
• Smoking
• Tooth Bleaching (adverse effects, methods)
• Tooth Discoloration (drug therapy, pathology)
• Treatment Outcome
• Urea (administration & dosage, adverse effects, analogs & derivatives)