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Associations between the Cervical Vertebral Column and Craniofacial Morphology.

Sonnesen L - Int J Dent (2010)

Bottom Line: Conclusion.It is suggested that fusion of the cervical vertebral column is associated with development and function of the craniofacial morphology.This finding is expected to have importance for diagnostics and elucidation of aetiology and thereby for optimal treatment.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthodontics, Institute of Odontology, Faculty of Health Sciences, University of Copenhagen, 2200 Copenhagen, Denmark.

ABSTRACT
Aim. To summarize recent studies on morphological deviations of the cervical vertebral column and associations with craniofacial morphology and head posture in nonsyndromic patients and in patients with obstructive sleep apnoea (OSA). Design. In these recent studies, visual assessment of the cervical vertebral column and cephalometric analysis of the craniofacial skeleton were performed on profile radiographs of subjects with neutral occlusion, patients with severe skeletal malocclusions and patients with OSA. Material from human triploid foetuses and mouse embryos was analysed histologically. Results. Recent studies have documented associations between fusion of the cervical vertebral column and craniofacial morphology, including head posture in patients with severe skeletal malocclusions. Histological studies on prenatal material supported these findings. Conclusion. It is suggested that fusion of the cervical vertebral column is associated with development and function of the craniofacial morphology. This finding is expected to have importance for diagnostics and elucidation of aetiology and thereby for optimal treatment.

No MeSH data available.


Related in: MedlinePlus

Illustration of the extension of the notochord (N). The black line indicates the caudocranial extension of the notochord through the vertebral bodies and the posterior part of the cranial base.
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fig2: Illustration of the extension of the notochord (N). The black line indicates the caudocranial extension of the notochord through the vertebral bodies and the posterior part of the cranial base.

Mentions: An explanation for the association between fusion of the cervical column and a large cranial base angle could be found in the early embryogenesis. The notochord develops in the human germ disc and determines the development of the cervical vertebrae, especially the vertebral bodies, and also the basilar part of the occipital bone in the cranial base [55–59] (Figure 2). The para-axial mesoderm forming the vertebral arches and remaining parts of the occipital bone are also formed from notochordal inductions. Therefore, a deviation in the development of the notochord may influence the surrounding bone tissue in the vertebral column as well as in the posterior part of the cranial base. It can be observed on postnatal profile radiographs that the bone tissue formed around the notochord is the vertebral bodies and the basilar part of the occipital bone. The shared origin of the vertebral column and the posterior part of the cranial base supports the new hypothesis that associations between the cervical vertebral column and the cranial base exist [60, 61].


Associations between the Cervical Vertebral Column and Craniofacial Morphology.

Sonnesen L - Int J Dent (2010)

Illustration of the extension of the notochord (N). The black line indicates the caudocranial extension of the notochord through the vertebral bodies and the posterior part of the cranial base.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC2901616&req=5

fig2: Illustration of the extension of the notochord (N). The black line indicates the caudocranial extension of the notochord through the vertebral bodies and the posterior part of the cranial base.
Mentions: An explanation for the association between fusion of the cervical column and a large cranial base angle could be found in the early embryogenesis. The notochord develops in the human germ disc and determines the development of the cervical vertebrae, especially the vertebral bodies, and also the basilar part of the occipital bone in the cranial base [55–59] (Figure 2). The para-axial mesoderm forming the vertebral arches and remaining parts of the occipital bone are also formed from notochordal inductions. Therefore, a deviation in the development of the notochord may influence the surrounding bone tissue in the vertebral column as well as in the posterior part of the cranial base. It can be observed on postnatal profile radiographs that the bone tissue formed around the notochord is the vertebral bodies and the basilar part of the occipital bone. The shared origin of the vertebral column and the posterior part of the cranial base supports the new hypothesis that associations between the cervical vertebral column and the cranial base exist [60, 61].

Bottom Line: Conclusion.It is suggested that fusion of the cervical vertebral column is associated with development and function of the craniofacial morphology.This finding is expected to have importance for diagnostics and elucidation of aetiology and thereby for optimal treatment.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthodontics, Institute of Odontology, Faculty of Health Sciences, University of Copenhagen, 2200 Copenhagen, Denmark.

ABSTRACT
Aim. To summarize recent studies on morphological deviations of the cervical vertebral column and associations with craniofacial morphology and head posture in nonsyndromic patients and in patients with obstructive sleep apnoea (OSA). Design. In these recent studies, visual assessment of the cervical vertebral column and cephalometric analysis of the craniofacial skeleton were performed on profile radiographs of subjects with neutral occlusion, patients with severe skeletal malocclusions and patients with OSA. Material from human triploid foetuses and mouse embryos was analysed histologically. Results. Recent studies have documented associations between fusion of the cervical vertebral column and craniofacial morphology, including head posture in patients with severe skeletal malocclusions. Histological studies on prenatal material supported these findings. Conclusion. It is suggested that fusion of the cervical vertebral column is associated with development and function of the craniofacial morphology. This finding is expected to have importance for diagnostics and elucidation of aetiology and thereby for optimal treatment.

No MeSH data available.


Related in: MedlinePlus