Author/Editor     Skalerič, Uroš; Cevc, Pavle; Gašpirc, Boris; Schara, Milan
Title     Crystallite arrangement of hydroxyapatite microcrystals in human tooth cementum as revealed by electron paramagnetic resonance (EPR)
Type     članek
Source     Eur J Oral Sci
Vol. and No.     Letnik 106, št. Suppl 1
Publication year     1998
Volume     str. 365-7
Language     eng
Abstract     Human dental cementum was analyzed by electron paramagnetic resonance (EPR). The measured EPR powder spectra of gamma-irradiated enamel. Both spectra were characterized by the same line shapes and g values. The position of the extrene frst derivate ieaps can be described bu g1=2.0023 and g2=1.9971+-0.002, and are assignable to the CO3-/3 center. The angular dependence of the cementum EPR spectra indicates a different arrangement of the hydroxyapatite microcrystals compared to that of enamel. A corresponding model of cementum microcrystal alignment has been proposed. The methodology presented can be utilized for studying the mineralization process of root cementum and other mineralized tissues.
Descriptors     DENTAL CEMENTUM
DURAPATITE
ADULT
CRYSTALLIZATION
ELECTRON SPIN RESONANCE SPECTROSCOPY
GAMMA RAYS