Osteodentine and vascular osteodentine of Anarhichas lupus (L.) |
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Authors: | Professor Bertrand Kerebel Marie-Thérèse Le Cabellec Guy Daculsi Lise-Marie Kerebel |
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Affiliation: | (1) Centre de Recherche, Faculté de Chirurgie Dentaire, Nantes, France;(2) Centre de Recherche, Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042 Nantes, France |
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Abstract: | Summary TEM, SEM and X-ray diffraction analysis demonstrate the heterogeneity of the dentinal tissue of Anarhichas lupus, a vascular osteodentine. The disordered aspect of collagen fibres, incompletely mineralized (the periodical striation being still visible), explains the scattered distribution of crystallites since they are responsible for their arrangement. The low degree of mineralization revealed by the visible collagen striation is confirmed by X-ray diffraction analysis (the crystallinity of vascular osteodentine being much lower than that of the peripheral dental tissue) as well as by high resolution TEM, since no lattice planes could be observed. Osteodentine, supporting bone and proper bone have in common a mineral phase, more or less organized, different from the apatite system.The authors thank Mireille Cottrel-Gengoux for her technical assistance |
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Keywords: | Osteodentine Anarhichas lupus Ultrastructure X-ray diffraction |
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