Dental Papilla
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. A histological study of the innervation of developing mouse teeth.
The innervation of developing mouse teeth between initial formation and crown formation was investigated using silver-stained serial sections. The developing innervation correlated with the stage of development of individual teeth rather than the chronological age of the mice. Nerves approached the developing dental papilla during the bud stage and formed a
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14. The early innervation of the developing deciduous teeth.
Ingrowth of dental nerve fibres into the mesenchyme of the tooth-bearing areas of the mouth takes place at an relatively early stage, when the dental laminae are forming but the tooth buds are undeveloped. By the time a developing tooth has reached the cap and bell stages small nerve bundles have begun to enter the mesenchyme from which the dental papilla an
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15. A fine structural study of coronal and root dentinogensis in the mouse: observations on the so-called 'von Korff fibres' and their contribution to mantle dentine.
The fine structure of mantle dentine formation has been studied in the mouse molar. No evidence was found for the presence of collagenous von Korff fibres arising from the dental papilla, passing between odontoblasts and fanning out to form the collagenous matrix of mantle detine. Instead, large collagen fibrils were first demonstrable in the matrix peripher
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16. De novo induction of a gene product during heterologous epithelial-mesenchymal interactions in vitro
Mesenchymal specification of epithelial cytodifferentiation and morphogenesis has been considered to be a general feature of various epithelial-mesenchymal interacting systems (e.g., salivary gland, mammary gland, feather, hair, and tooth morphogenesis). In contrast, we have demonstrated that a mesenchyme can be induced by a heterologous epithelium to synthe
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17. The pattern of histogenesis and growth of tooth plates in larval stages of extant lungfish.
Comparison of new data obtained in this study on Protopterus aethiopicus with that published on Protopterus aethiopicus and Neoceratodus forsteri has confirmed the suggestion that the pattern of histogenesis of tooth plates in the early larval stages is very similar in the two genera. These similarities are more apparent both when a common terminology is ado
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18. Features of the aperiodic microfibrils associated with mouse dental basement membrane demonstrated by ultrastructural histochemistry.
Histochemical features of aperiodic microfibrils (AMF) in mouse tooth germs were examined at the electron microscopic level. Intact and EDTA-isolated materials obtained from one day old first molars were used for ruthenium red (RR) staining, ferritin permeability, periodic acid-silver methenamine (PAM) impregnation, fibronectin localisation, negative stainin