Whitening and Deodorization Ability by Peroxide and Hydroxyapatite Compound



In this paper, a low concentration of Hydrogen Peroxide (H2O2) was added to the hydroxyapatite ceramics to develop HA/H2O2 compound. The HA/H2O2 was tested for the whitening and deodorizing ability. HA/H2O2 composite was added with glycerin and was tested on the enamel layer for lightness changes on the tooth layer. The lightness result was compared with 100[ppm] of H2O2 treatment by Spectro Color Meter and enamel layers structure observation by optical microscope. In deodorization test, 20[g] of clove garlic and slice garlic were identified for garlic aroma peak. 20[g] of HA/H2O2 compound, HA alone and charcoal respectively were tested for the garlic aroma adsorption ability. Identification and quantification of the garlic aroma peak area decrease was observed by gas chromatography. In the whitening result, HA/H2O2 compound and H2O2 alone treatment obtained 68 and 67 respectively. From the structure observation, HA/H2O2 composite treatment was the best since the smooth and unharmed enamel layer of the tooth was observed. Deodorization ability for HA/H2O2 compound has the similarity rate as charcoal at 82.3[%]. The HA/H2O2 composite has an ability of whitening and deodorizing at even low concentration.





Panjian Li, Kai Zhang and Clifford W. Colwell, Jr.




J. M. Janurudin et al., "Whitening and Deodorization Ability by Peroxide and Hydroxyapatite Compound", Key Engineering Materials, Vols. 284-286, pp. 27-30, 2005


April 2005




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