PMID- 20662305
OWN - NLM
STAT- MEDLINE
DCOM- 20100831
LR  - 20131121
IS  - 0300-9149 (Print)
IS  - 0300-9149 (Linking)
VI  - 77
IP  - 2
DP  - 2010 Jun
TI  - [Development of low-concentration hydrogen peroxide whitening agent using visible 
      light-responsive titania photocatalyst].
PG  - 121-7
AB  - Although highly concentrated hydrogen peroxide (HP) has been used to bleach vital 
      discolored teeth during office whitening, low-concentration HP was recognized to 
      have insufficient whitening ability. We demonstrated that using a visible 
      light-responsive titania photocatalyst (VLRTP) and a vis-Nd : YAG laser, 3 wt% 
      HP-bleached oxytetracycline (OTC)-stained teeth models were more efficient than 
      30 wt% HP. The stained samples were prepared by soaking synthetic hydroxyapatite 
      ceramic disks in OTC aqueous solutions. Color images of the OTC-stained models 
      before and after whitening were taken with a conventional flatbed scanner and 
      calibrated using a photocell colorimeter. By VLRTP treatment with vis-Nd : YAG 
      laser irradiation, the lightness value (L*) significantly increased and the 
      yellowness index (b*) significantly approached zero. This suggests that a diluted 
      HP agent with VLRTP can more efficiently decolorize stained teeth by visible 
      light irradiation.
FAU - Arai, Hiroshi
AU  - Arai H
AD  - Department of Inorganic Materials, Division of Biomaterials, Institute of 
      Biomaterials and Bioengineering, Tokyo Medical and Dental University.
LA  - jpn
PT  - English Abstract
PT  - Journal Article
PL  - Japan
TA  - Kokubyo Gakkai Zasshi
JT  - Kokubyo Gakkai zasshi. The Journal of the Stomatological Society, Japan
JID - 0413677
RN  - 15FIX9V2JP (titanium dioxide)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - D1JT611TNE (Titanium)
SB  - IM
MH  - Catalysis
MH  - Hydrogen Peroxide/*pharmacology
MH  - *Lasers, Solid-State
MH  - Light
MH  - Titanium/*pharmacology
MH  - Tooth Bleaching/*methods
MH  - Tooth Discoloration
EDAT- 2010/07/29 06:00
MHDA- 2010/09/02 06:00
CRDT- 2010/07/29 06:00
PHST- 2010/07/29 06:00 [entrez]
PHST- 2010/07/29 06:00 [pubmed]
PHST- 2010/09/02 06:00 [medline]
PST - ppublish
SO  - Kokubyo Gakkai Zasshi. 2010 Jun;77(2):121-7.