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Abstract
Age-related differences in the height of the mandibular basal bone were compared between young and old dentate subjects and between dentate and old edentulous subjects by means of panoramic radiographs. The distances of the mental foramen and mandibular canal from the lower border of the mandible, when measured, showed the mandibular basal bones in old dentate and in old edentulous men to be higher than those of young dentate men in the molar region (P < 0.05). The height of the basal bone below the mental foramen was smaller in old edentulous women than in young and old dentate women (P < 0.05). A slight bone deposition along the lower border of the mandible in the molar region seems to take place with increasing age. The mental foramina of edentulous women move toward the lower border of the mandible as a result of alveolar bone resorption.
