Spectrophotometric and visual evaluation of vital tooth bleaching employing different carbamide peroxide concentrations

Dental Materials : Official Publication of the Academy of Dental Materials
Andreas BraunFelix Krause

Abstract

The aim of the present study was to assess the hypothesis that the efficiency of vital tooth bleaching depends on the concentration of carbamide peroxide agents. The front teeth of 30 subjects were bleached at home with 10%, 17% or 0% (control) carbamide peroxide for 1 week in a double-blind study design. Tooth shades were determined in the LCH color space employing a visual shade matching system and a spectrophotometer. Differences in lightness (Deltal), chroma (Deltac) and hue (Deltah) were measured to assess the treatment process. After 2 weeks of no treatment, tooth shades were evaluated again to assess stability of the resultant shade. First-time changes of shade values could be observed after 3 days in the 17% group and after 7 days in the 10% group. After 1 week, in both the 17% group (Deltal: 2.80, Deltac: -3.33, Deltah: 0.60) and the 10% group (Deltal: 2.61, Deltac: -2.54, Deltah: 0.09), values for lightness and chroma were significantly different from the control (Deltal: 0.13, Deltac: 0.14, Deltah: 0.21, p<0.05) with no difference between the test groups (p>0.05). Two weeks after treatment, a rebound of shade values could be observed in the test groups (p<0.05). The study indicates that higher concentration bleaching...Continue Reading

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Citations

Sep 25, 2010·Photomedicine and Laser Surgery·Narmin MohammadiSahar Shakoui Bonab
Jun 6, 2012·Journal of Applied Oral Science : Revista FOB·Sônia Saeger MeirelesFlávio Fernando Demarco
Aug 24, 2011·Operative Dentistry·P F L DawsonP A Brunton
Jul 19, 2013·Operative Dentistry·V Alonso de la Peña, M López Ratón
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Aug 28, 2012·Journal of Dentistry·Joe C OntiverosRade Paravina
Jan 23, 2016·The Journal of Prosthetic Dentistry·Jussara Karina BernardonLuiz Narciso Baratieri
Sep 16, 2015·The Journal of Prosthetic Dentistry·Jussara Karina BernardonGabrielle Branco Rauber
Mar 3, 2012·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Maria GawriołekProf Ryszard Koczorowski
Feb 21, 2013·Acta Odontologica Scandinavica·Gabriel CôrtesJosé Roberto Lovadino
Sep 3, 2009·The Journal of the American Dental Association·Sônia Saeger MeirelesFlávio Fernando Demarco
Oct 5, 2010·The Journal of the American Dental Association·Paula C CardosoLuiz N Baratieri
Dec 5, 2008·Operative Dentistry·Sônia Saeger MeirelesFlávio Fernando Demarco
Feb 20, 2010·Operative Dentistry·Jussara K BernardonLuiz Narciso Baratieri
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Aug 4, 2020·International Journal of Clinical Pediatric Dentistry·Manisha BehlKirti Chaudhry

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