2009 Volume 29 Issue 2 Pages 134-138
This study investigated chemical components of coronal and radicular dentin using Fourier transform infrared spectroscopy. Five bovine teeth were divided into coronal and radicular portions, and coronal and radicular dentin slabs were prepared horizontally. The area intensities of amide I, amide II, amide III and phosphate of the coronal and radicular dentin were evaluated by Fourier transform infrared spectroscopy at two locations per tooth. The mean area intensities were compared statistically by one-way ANOVA and Fisher's PLSD tests. The amide I area intensity of coronal dentin was 8.67±2.20 and that of radicular dentin was 12.29±2.47. The amide II area intensity of coronal dentin was 0.84±0.25 and that of radicular dentin was 1.94±0.45. The amide III area intensity of coronal dentin was 0.17±0.03 and that of radicular dentin was 0.50±0.10. Additionally, the phosphate area intensity of coronal dentin was 24.45±9.23 and that of radicular dentin was 42.05±3.67. All of the area intensities of coronal dentin were lower than those of radicular dentin.
