© 1987 by European Orthodontic Society
The relationship between craniofacial morphology, head posture and spinal curvature in 8, 11 and 15-year-old children
*Department of Orthodontics, Karolinska Institutet
**Department of Orthopaedics, Huddinge University Hospital Sweden
Dr Eva Hellsing Department of Orthodontics Karolinska Institutet Box 4064 S-14104 HUDDINGE Sweden
The associations between craniofacial morphology, head posture and spinal curvatures were examined in a sample of 125 children, 63 boys and 62 girls equally divided into three age groups of 8, 11 and 15 years of age. Variables concerning craniofacial morphology, head posture and cervical lordosis were measured from lateral skull radiographs. The curvature of thoracic kyphosis and lumbar lordosis was measured using a kyphometer. The systematic effects of sex and age were eliminated in the statistical analysis and it was found that a straighter cervical lordosis, measured from the second to the sixth vertebra was correlated to extension of the head in relation to the second cervical vertebra, an increased inclination of the mandible and increased anterior facial height. It was also found that extension of the head to a true vertical was related to increased cervical lordosis, indicating a compensatory curvature of the cervical spine with a changed centre of gravity of the craniofacial complex. An increased curvature of the thoracic spine was also correlated to increased facial prognathism and an increased anterposterior dimension of the mandible.
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