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Journal of Biomedical Optics

Peroxide dental bleaching via laser microchannels and tooth color measurements
Author(s): Gregory Altshuler; Andrey Belikov; Alexei Skrypnik; Felix Feldchtein; Alexandra Pushkareva; Ksenia Shatilova; Igor Cernavin; Valery Tuchin
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Paper Abstract

The aim of this study was to use microchannels drilled by an Er:YAG laser into a human tooth through the enamel into the dentin for direct injection of hydrogen peroxide (HP) to produce a minimally invasive, rapid, tooth bleaching effect. The experiments were conducted in vitro. Five microchannels with a diameter of ∼200  μm and a depth of ∼2  mm were drilled through the palatal side of a human tooth crown using the microbeam of an Er:YAG-laser with a wavelength of 2.94  μm. After injection of an aqueous solution of 31%-HP through the microchannels, the tooth color was evaluated using a VITA shade guide and International Commission on Illumination L*ab color parameters. A tooth model used for the evaluation of the distribution of HP concentration was created and the amount of HP which can be injected into tooth dentin to bleach it safely was estimated. Injection of 1.5±0.1  mm3 of 31%-HP into the tooth led to noticeable bleaching within 3 h and significant improvement of tooth color within 24 h.

Paper Details

Date Published: 7 December 2016
PDF: 9 pages
J. Biomed. Opt. 21(12) 125001 doi: 10.1117/1.JBO.21.12.125001
Published in: Journal of Biomedical Optics Volume 21, Issue 12
Show Author Affiliations
Gregory Altshuler, IPG Photonics Corp. (United States)
Andrey Belikov, ITMO Univ. (Russian Federation)
Alexei Skrypnik, ITMO Univ. (Russian Federation)
Felix Feldchtein, Consultant (United States)
Alexandra Pushkareva, ITMO Univ. (Russian Federation)
Ksenia Shatilova, ITMO Univ. (Russian Federation)
Igor Cernavin, The Univ. of Melbourne (Australia)
Valery Tuchin, Saratov State Univ. (Russian Federation)
Institute of Precision Mechanics and Control (Russian Federation)
National Research Tomsk State Univ. (Russian Federation)

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