Specifics of the indicators of the width of the apical arches of the lower jaws in the brachicranial skull type

To improve and develop new methods for diagnosis and treatment of dentoalveolar anomalies, the study of questions relating to the morphology of the apical arches is relevant. Morphometric indices of the width of the apical arches of the lower jaw with brachicranial type of the skull structure were investigated. The work was performed on 144 preparations of the mandible of persons of mature age of both sexes with physiological occlusion of teeth. The width of the dental arch was measured between canines, premolars and molars. As a result of the study, the minimum and maximum confidence limits of the widths of dental arches at different levels of measurement were determined. The range of these boundaries was set. Reliability of the difference in the average statistical indices of the vestibular and lingual apical arches of the lower jaw in men and women was observed only at the level of the second premolars. At the remaining levels of measurement, the indicators were similar.