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Journal of Dental Research
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Effects of Hydrogen Peroxide on Human Dentin Structure

T. Jiang1,2, X. Ma1, Y. Wang1,*, Z. Zhu, H. Tong2 and J. Hu2,*

1 Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, PR China;
2 Institute of Analytical and Biomedical Science, Wuhan University, Wuhan 430072, PR China; and
3 College of Physical Science and Technology, HuaZhong Normal University, Wuhan, PR China


Figure 1
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  		Figure 1. Comparison of Fourier transform infrared spectroscopy (FTIR) (lower) and attenuated total reflection (ATR) spectra (upper) of human intact dentin. (A) Typical FTIR and ATR spectra. The spectra have been normalized to amide I. (B) Second-derivative spectra (multiplied by –1) of FTIR and ATR in the phosphate v1, v3 region.

 

Figure 2
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  		Figure 2. Representative attenuated total reflection (ATR) spectra, difference spectra, and second-derivative spectra of the Dentin+H2O2 (upper) and Dentin+HBSS groups (lower). (A) ATR spectra of the Dentin+H2O2 and Dentin+HBSS groups before (solid line) and after (dotted line) treatment. The spectra have been normalized to phosphate v1, v3. (B) Difference spectra (after-before) of the Dentin+H2O2 and Dentin+HBSS groups. (C) Second-derivative spectra (multiplied by –1) of the Dentin+H2O2 and Dentin+HBSS groups before (solid line) and after (dotted line) treatment at the phosphate v1, v3 region. Five specimens in each group were analyzed.

 

Figure 3
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  		Figure 3. Representative attenuated total reflection (ATR) and difference spectra of the Demin+HBSS (upper) and Demin+HCl groups (lower). (A) ATR spectra of the Demin+HBSS and Demin+HCl groups before (solid line) and after (dotted line) treatment. The spectra have been normalized to amide I. (B) Difference spectra (after-before) of the Demin+HBSS and Demin+HCl groups. Five specimens in each group were analyzed.

 

Journal of Dental Research, Vol. 86, No. 11, 1040-1045 (2007)
DOI: 10.1177/154405910708601104
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