Characterization of enamel with variable caries risk.
Small angle X-ray scattering (SAXS), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) have been used to look at enamel from nine premolars, three each from individuals in low, medium and high risk caries groups. Only SAXS was able to detect consistent differences between any of the groups. In enamel from the high caries risk group, the micropores between the hydroxyapatite crystals were laminar. In enamel from the low caries risk group, the micropores were cylindrical. Other parameters varied between teeth but were not correlated with caries risk.
Gutierrez
Pilar
P
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 México, D.F., Mexico.
Piña
Cristina
C
Lara
Victor Hugo
VH
Bosch
Pedro
P
D000293:Adolescent; D001641:Bicuspid / Q000473:pathology; D001672:Biocompatible Materials / Q000032:analysis; D003460:Crystallization; D003731:Dental Caries / Q000175:diagnosis* / Q000473:pathology; D003733:Dental Caries Susceptibility / Q000502:physiology; D003743:Dental Enamel / Q000473:pathology*; D017886:Durapatite / Q000032:analysis; D006801:Humans; D012307:Risk Factors; D012542:Scattering, Radiation; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D014961:X-Ray Diffraction / Q000379:methods
D001672:Biocompatible Materials; D017886:Durapatite