Associations between thoracic kyphosis, head posture, and craniofacial morphology in young adults

Inta Zepa Department of Orthodontics, Karolinska Institutet, Huddinge, Sweden; Department of Pedodontics and Orthodontics, Department of Radiology, Department of Stomatognathic Physiology and Prosthodontics, Institute of Dentistry, University of Helsinki, Finland; Riihimäki Hospital, Riihimäki, Finland; Helsinki University Central Hospital, Department of Oral and Maxillofacial Diseases, Finland; Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore, Singapore

Kirsti Hurmerinta Department of Orthodontics, Karolinska Institutet, Huddinge, Sweden; Department of Pedodontics and Orthodontics, Department of Radiology, Department of Stomatognathic Physiology and Prosthodontics, Institute of Dentistry, University of Helsinki, Finland; Riihimäki Hospital, Riihimäki, Finland; Helsinki University Central Hospital, Department of Oral and Maxillofacial Diseases, Finland; Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore, Singapore

Outi Kovero Department of Orthodontics, Karolinska Institutet, Huddinge, Sweden; Department of Pedodontics and Orthodontics, Department of Radiology, Department of Stomatognathic Physiology and Prosthodontics, Institute of Dentistry, University of Helsinki, Finland; Riihimäki Hospital, Riihimäki, Finland; Helsinki University Central Hospital, Department of Oral and Maxillofacial Diseases, Finland; Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore, Singapore

Maunu Nissinen Department of Orthodontics, Karolinska Institutet, Huddinge, Sweden; Department of Pedodontics and Orthodontics, Department of Radiology, Department of Stomatognathic Physiology and Prosthodontics, Institute of Dentistry, University of Helsinki, Finland; Riihimäki Hospital, Riihimäki, Finland; Helsinki University Central Hospital, Department of Oral and Maxillofacial Diseases, Finland; Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore, Singapore

Mauno Könönen Department of Orthodontics, Karolinska Institutet, Huddinge, Sweden; Department of Pedodontics and Orthodontics, Department of Radiology, Department of Stomatognathic Physiology and Prosthodontics, Institute of Dentistry, University of Helsinki, Finland; Riihimäki Hospital, Riihimäki, Finland; Helsinki University Central Hospital, Department of Oral and Maxillofacial Diseases, Finland; Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore, Singapore

Jan Huggare Department of Orthodontics, Karolinska Institutet, Huddinge, Sweden; Department of Pedodontics and Orthodontics, Department of Radiology, Department of Stomatognathic Physiology and Prosthodontics, Institute of Dentistry, University of Helsinki, Finland; Riihimäki Hospital, Riihimäki, Finland; Helsinki University Central Hospital, Department of Oral and Maxillofacial Diseases, Finland; Department of Preventive Dentistry, Faculty of Dentistry, National University of Singapore, Singapore

Abstract

The aim of the present study was to investigate associations between thoracic hyper- and hypokyphosis, head posture, and craniofacial morphology in young adults. Using forward bending test and spinal pantographic measurements, 31 subjects, 16 with thoracic hyper- and 15 with hypokyphosis, were selected from a population-based cohort of 430 young adults. Lateral roentgen-cephalograms were taken in natural head posture and craniofacial and postural angular measurements were calculated. Any statistically significant differences between the groups - thoracic hyperkyphosis and thoracic hypokyphosis - were analysed using Student's t test. Subjects with thoracic hyperkyphosis had a larger atlantocervical angle (At/CVT, P < 0.01) than subjects with thoracic hypokyphosis. However, head position (NSL/VER)was similar in both groups, probably owing to the visual perception control of craniovertical relation. There was no statistically significant difference in craniofacial morphology between the groups.

Keywords

Atlanto-CERVICAL Angle Craniofacial Morphology Head Posture Spinal Posture

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Associations between thoracic kyphosis, head posture, and craniofacial morphology in young adults

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Associations between thoracic kyphosis, head posture, and craniofacial morphology in young adults

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