Polarizing microscopy and microradiography of sound enamel
article
Plano-parallel longitudinal sections from 19 sound human premolars were imbibed in water and air. The total birefringence of the occlusal, the midcoronal and the cervical region of the sound buccal enamel cap was subsequently determined. The percentage of mineral by volume was measured in the same areas using semi-quantative microradiography. The results show that when the mean values of both water and air imbibed by occlusal and midcoronal enamel are considered, there is a positive correlation between the observed total birefringence and the mineral content. The cervical, fissure and cuspal regions showed a poor correlation between mineral content and total birefringence. In longitudinal sections, the influence of the structural organisation and the organic matrix is not marked in the occlusal and midcoronal regions, although the cervical, fissure and cuspal regions are probably influenced most by these factors.
Chemicals/CAS: Minerals; Water, 7732-18-5
Chemicals/CAS: Minerals; Water, 7732-18-5
Topics
TNO Identifier
228900
ISSN
03013952
Source
Journal de Biologie Buccale, 8(3), pp. 229-238.
Pages
229-238
Files
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