| Cervical column morphology and craniofacial profiles in monozygotic twins. | |
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MedLine Citation:
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PMID: 18251680 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Previous studies have described the relationships between cervical column morphology and craniofacial morphology. The aims of the present study were to describe cervical column morphology in 38 pairs of adult monozygotic (MZ) twins, and compare craniofacial morphology in twins with fusions with craniofacial morphology in twins without fusion. Visual assessment of cervical column morphology and cephalometric measurements of craniofacial morphology were performed on profile radiographs. In the cervical column, fusion between corpora of the second and third vertebrae was registered as fusion. In the twin group, 8 twin pairs had fusion of the cervical column in both individuals within the pair (sub-group A), 25 pairs had no fusions (subgroup B), and in 5 pairs, cervical column morphology was different within the pair (subgroup C), as one twin had fusion and the other did not. Comparison of craniofacial profiles showed a tendency to increased jaw retrognathia, larger cranial base angle, and larger mandibular inclination in subgroup A than in subgroup B. The same tendency was observed within subgroup C between the individual twins with fusion compared with those without fusion. These results confirm that cervical fusions and craniofacial morphology may be interrelated in twins when analysed on profile radiographs. The study also documents that differences in cervical column morphology can occur in individuals within a pair of MZ twins. It illustrates that differences in craniofacial morphology between individuals within a pair of MZ twins can be associated with cervical fusion. |
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Authors:
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Liselotte Sonnesen; Carsten Pallisgaard; Inger Kjaer |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Twin Study |
Journal Detail:
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Title: Twin research and human genetics : the official journal of the International Society for Twin Studies Volume: 11 ISSN: 1832-4274 ISO Abbreviation: - Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-02-06 Completed Date: 2008-05-30 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101244624 Medline TA: Twin Res Hum Genet Country: Australia |
Other Details:
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Languages: eng Pagination: 84-92 Citation Subset: IM |
Affiliation:
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Department of Orthodontics, Institute of Odontology, Faculty of Health Sciences, Copenhagen University, Denmark. lls@odont.ku.dk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Cephalometry Cervical Vertebrae / anatomy & histology*, radiography Face / anatomy & histology* Female Humans Male Quantitative Trait, Heritable* Skull / anatomy & histology*, radiography Twins, Monozygotic* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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