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Article: Malocclusions in Xia Dynasty in China

TitleMalocclusions in Xia Dynasty in China
Authors
KeywordsMalocclusion
Xia Dynasty skulls
Tooth crowding
Diastema
Individual tooth malposition
Issue Date2012
PublisherChinese Medical Association. The Journal's web site is located at http://www.cmj.org/
Citation
Chinese Medical Journal, 2012, v. 125 n. 1, p. 119-122 How to Cite?
Abstract
BACKGROUND: The prevalence of malocclusion in modern population is higher than that in the excavated samples from the ancient times. Presently, the prevalence of juvenile malocclusion in the early stage of permanent teeth is as high as 72.92% in China. This study aimed to observe and evaluate the prevalence and severity of malocclusions in a sample of Xia Dynasty in China, and to compare these findings with the modern Chinese population. METHODS: The material consisted of 38 male and 18 female protohistoric skulls of Xia Dynasty 4000 years ago. Of 86 dental arches, 29 cases had the jaw relationships. Tooth crowding, diastema, individual tooth malposition and malocclusion were studied. RESULTS: Of the samples, 23.3% showed tooth alignment problems including crowding (8.1%), diastema (9.3%), and individual tooth malposition (5.8%). The prevalence of malocclusion was 27.6%, mainly presented as Angle Class I. CONCLUSIONS: It is indicated that over thousands of years from Neolithic Age (6000 - 7000 years ago) to Xia Dynasty (4000 years ago), the prevalence of malocclusion did not change significantly. The prevalence of malocclusion of Xia Dynasty samples was much lower than that of modern population.
DescriptionFulltext link: http://www.ecmj.org.cn/ch/reader/view_abstract.aspx?volume=125&issue=1&start_page=119
Persistent Identifierhttp://hdl.handle.net/10722/146832
ISSN
2013 Impact Factor: 1.016
2013 SCImago Journal Rankings: 0.433
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China30271429
Funding Information:

This study was supported by a grant from National Natural Science Foundation of China (No. 30271429).

 

DC FieldValueLanguage
dc.contributor.authorWang, Wen_US
dc.contributor.authorZeng, Xen_US
dc.contributor.authorZhang, Cen_US
dc.contributor.authorYang, Yen_US
dc.date.accessioned2012-05-23T05:28:08Z-
dc.date.available2012-05-23T05:28:08Z-
dc.date.issued2012en_US
dc.identifier.citationChinese Medical Journal, 2012, v. 125 n. 1, p. 119-122en_US
dc.identifier.issn0366-6999-
dc.identifier.urihttp://hdl.handle.net/10722/146832-
dc.descriptionFulltext link: http://www.ecmj.org.cn/ch/reader/view_abstract.aspx?volume=125&issue=1&start_page=119-
dc.description.abstractBACKGROUND: The prevalence of malocclusion in modern population is higher than that in the excavated samples from the ancient times. Presently, the prevalence of juvenile malocclusion in the early stage of permanent teeth is as high as 72.92% in China. This study aimed to observe and evaluate the prevalence and severity of malocclusions in a sample of Xia Dynasty in China, and to compare these findings with the modern Chinese population. METHODS: The material consisted of 38 male and 18 female protohistoric skulls of Xia Dynasty 4000 years ago. Of 86 dental arches, 29 cases had the jaw relationships. Tooth crowding, diastema, individual tooth malposition and malocclusion were studied. RESULTS: Of the samples, 23.3% showed tooth alignment problems including crowding (8.1%), diastema (9.3%), and individual tooth malposition (5.8%). The prevalence of malocclusion was 27.6%, mainly presented as Angle Class I. CONCLUSIONS: It is indicated that over thousands of years from Neolithic Age (6000 - 7000 years ago) to Xia Dynasty (4000 years ago), the prevalence of malocclusion did not change significantly. The prevalence of malocclusion of Xia Dynasty samples was much lower than that of modern population.-
dc.languageengen_US
dc.publisherChinese Medical Association. The Journal's web site is located at http://www.cmj.org/-
dc.relation.ispartofChinese Medical Journalen_US
dc.subjectMalocclusion-
dc.subjectXia Dynasty skulls-
dc.subjectTooth crowding-
dc.subjectDiastema-
dc.subjectIndividual tooth malposition-
dc.subject.meshChina - epidemiology-
dc.subject.meshDiastema-
dc.subject.meshHistory, Ancient-
dc.subject.meshMale-
dc.subject.meshMalocclusion - epidemiology - history-
dc.subject.meshFemale-
dc.subject.meshHumans-
dc.titleMalocclusions in Xia Dynasty in Chinaen_US
dc.typeArticleen_US
dc.identifier.emailWang, W: wangwei9196@sina.comen_US
dc.identifier.emailZhang, C: zhangcf@hku.hk-
dc.identifier.emailYang, Y: yangyanq@hkucc.hku.hk-
dc.identifier.authorityZhang, C=rp01408en_US
dc.identifier.authorityYang, Y=rp00045-
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.3760/cma.j.issn.0366-6999.2012.01.022-
dc.identifier.pmid22340477-
dc.identifier.scopuseid_2-s2.0-84862909950-
dc.identifier.hkuros199775en_US
dc.identifier.volume125en_US
dc.identifier.issue1en_US
dc.identifier.spage119en_US
dc.identifier.epage122en_US
dc.identifier.isiWOS:000300749400022-
dc.publisher.placeChina-
dc.customcontrol.immutablehys 130314-

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