Faculty of Health Sciences
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Item Failure at the dental restorative-etched enamel interface(1973) Retief, D. H.Item Failure at the dental restorative etched enamel interface(1973) Retief, D. H.None of the restorative materials available to the dental profession adhere to tooth structure. The bonding of these materials could be greatly increased by etching the enamel surface prior to the placement of the restorative material. Conditioning of the enamel surface with phosphoric acid or an attenuated phosphoric acid solution is now an accepted procedure and widely applied in restorative and preventive dentistry.Item A comparative sem study of keratinized and non-keratinized oral mucosa of the vervet monkey(1981) Grossman, E. S.; Cleaton-Jones, P. E.Scanning electron microscopy has revealed that the surfaces of keratinized and non-keratinized oral epithelial cells have characteristic features which enable these tissue types to be readily distinguished. These features include pits, villus-like projections and ridge-like folds called microplications. The origin and functional significance of these structures is not known, although several hypotheses have been proposed. Microplications have been interpreted as a reserve area for cell stretching but further studies have yielded conflicting results. Cellular interdigitation resulting from the microplications may aid adhesion between the stratified epithelial cells. This view has been supported by subsequent investigations of superficial epithelial cells. The situation in the deeper cell layers is not entirely clear.Item Intercellular junctions in the attached gingiva and alveolar mucosa in the vervet monkey (cercopithecus aethiops)(1979) Grossman, E. S.; Austin, J. C.; Cleaton-Jones, P.This study was undertaken to determine the distribution of hemidesmosomes on the basal cell membranes adjacent to the basement lamina and the spinous cell membranes on unloaded keratinized AG and non- keratinized AM.Item Ultrastructural features of exfoliating surface cells in keratinised and non-keratinised oral mucosa(1979) Austin, J. C.; Grossman, E. S.; Cleaton-Jones, P.Healthy keratinised and non-keratinised oral mucosa (attached gingiva and alveolar mucosa) were obtained from 6 adult vervet monkeys, fixed in situ by simultaneous perfusion and immersion fixation using cacodylate buffered 2,5% glutaraldehyde and prepared for examination by SEM and TEM.Item The Auricle. 1963; April(The Students` Medical Council University of the Witwatersrand, 1963-04) Students` Medical CouncilItem The Auricle. 1963; March(The Students` Medical Council University of the Witwatersrand, 1963-03) Students` Medical CouncilItem The Auricle. 1963; February(The Students` Medical Council University of the Witwatersrand, 1963-02) Students` Medical CouncilItem The Auricle. 1962; March(The Students` Medical Council University of the Witwatersrand, 1962-03) Students` Medical CouncilItem The Auricle. 1962; June(The Students` Medical Council University of the Witwatersrand, 1962-06) Students` Medical Council