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The purpose of this study was to describe the prenatal formation of the human mandibular canal. Since bony canals develop in prenatal life around the nerve paths, it was assumed that the canal pattern could reflect the pattern of innervation of the dentition. Mapping of this early canal pattern does not appear to have been undertaken before. The material(More)
The purpose of the present investigation was to consider possible aetiological aspects of mandibular tooth agenesis by comparing the pattern of mandibular molar and premolar agenesis with radiological evidence of the mandibular canal. Orthopantomograms from 33 children affected by agenesis of at least four premolar and/or molar teeth in the mandible were(More)
The purpose of this study was to examine the association between the number of congenitally missing permanent teeth, excluding third molars, and the craniofacial morphology. The sample comprised 118 children with five or more congenitally missing teeth. Twenty-seven reference points were digitized from lateral cephalometric radiographs and 13 angular(More)
OBJECTIVES To examine and compare the cervical column morphology in adult patients with skeletal open bite with the cervical column morphology of an adult control group with neutral occlusion and normal craniofacial morphology. DESIGN A retrospective case-control study. SETTING AND SAMPLE POPULATION Thirty-eight open bite patients, 27 women, aged 17-39(More)
The purpose of this study was to describe in 49 normal human prenatal specimens, 15-156 mm crown-rump length (CRL), the histomorphological development of the bilateral vomeronasal organ localized in the mucosa of the nasal septum. In addition, immunohistochemical localization of luteinizing hormone-releasing hormone (LHRH) was undertaken. The material was(More)
In earlier studies, a sella turcica bridge was stated to occur in 1.75 to 6 per cent of the population. The occurrence of a sella turcica bridge has not previously been studied in a group of patients with craniofacial deviations treated by surgery. Profile radiographs from 177 individuals who had undergone combined orthodontic and surgical treatment at the(More)
The frequency, gender, and maxillary/mandibular occurrences of third molar agenesis have been studied in a Danish population of Down syndrome individuals (39 F and 31 M). The study was based on radiological examination and compared with 2 control groups of normal Caucasian populations. We found that the occurrence of third molar agenesis in Down syndrome(More)
Williams syndrome is a rare congenital syndrome with distinctive craniofacial features, cardiovascular abnormalities, and behavior characteristics including mental retardation. The dental abnormalities have received scant attention in previous literature. The aim of this study was to describe dental characteristics in individuals with Williams syndrome. In(More)
  • I Kjaer
  • 1990
The factors initiating the onset of desmal jaw formation are not known. The purpose of the present report was to examine the correlation between the appearance of ossification and nerve tissue in human fetal jaws. This was done through elaboration of similarities in occurrence of tissue types at four different sites of initial bone formation in the jaws.(More)
  • I Kjaer
  • 1995
A survey is given of current knowledge of the interrelationship between facial, cranial and brain development in humans. First, normal facial, cranial (mandible, maxilla, palatine bone, cranial base, theca cranii, dentition), and brain development are described separately. Then, developmental interrelationships are illustrated under normal and pathologic(More)