[Clinical course and histological evaluation of hydantoin-induced gingival hyperplasia].
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Biomedical subjects
Publications and source records attributed to E Bollobás.
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Development of the maxilla has been studied based on 50 fetal maxillae. The morphological findings are supplemented with data of measurements where necessary. The frontal surface of the maxilla was examined, and its measurements were compared to those of the surrounding structures in fetal life and in adults. A detailed analysis deals with the alveolar process, its walls (laminae), the topography and measurements of the maxilla and the zygomatic bone, the relationship between the frontal process and the nasal bone as well as the frontal bone, with special regard to postnatal changes in these relations, followed by the morphology of the palatine process and the canine fossa. Some of the morphological findings are explained by ontogenetic and phylogenetic factors.
A brief analysis of the apertures, canals and syndesmoses of the maxilla is given on the basis of examination of 50 fetal maxillae. Analysis of the macerated and dried bone preparations was supplemented with the examination of soft parts in 10 embryonic and 10 adult skulls. This was necessary partly for detecting the pre-growth relations and partly for following the completion of growth. Examination by means of a binocular magnifying glass was extended to the infraorbital foramen; the infraorbital canal and sulcus; the inferior orbital fissure; the median and transverse palatine sutures; the foramina of the palatine process; the nutritive foramina; the incisive canal; the maxillary and maxilloethmoidal sutures. For certain morphological changes occurring in fetal age biological explanations have been provided.
On the basis of examination of 50 fetal mandibles, development of the mandibular canal is described. The development of the foramen mandibulae, foramen mentale, the lingula, the alveolar process, and the morphological changes in the mandible due to the effect of the development of the mandibular canal are discussed. The anatomical conditions examined may also have clinical implications.
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