Article: Malocclusions in Xia Dynasty in China

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TitleMalocclusions in Xia Dynasty in China
AuthorsWang, W2
Zeng, X
Zhang, C1
Yang, Y
KeywordsMalocclusion
Xia Dynasty skulls
Tooth crowding
Diastema
Individual tooth malposition
Issue Date2012
PublisherZhonghua Yixuehui. The Journal's web site is located at http://med.wanfangdata.com.cn/Paper/PeriodicalInfo.aspx?periodicalID=zhcmj
CitationChinese Medical Journal, 2012, v. 125 n. 1, p. 119-122 [How to Cite?]
DOI: http://dx.doi.org/10.3760/cma.j.issn.0366-6999.2012.01.022
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.
DescriptionOriginal article
Open Access Journal
ISSN0366-6999
2011 Impact Factor: 0.864
2011 SCImago Journal Rankings: 0.077
DOIhttp://dx.doi.org/10.3760/cma.j.issn.0366-6999.2012.01.022
ISI Accession Number IDWOS:000300749400022
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 Field
Value
dc.contributor.authorWang, W
dc.contributor.authorZeng, X
dc.contributor.authorZhang, C
dc.contributor.authorYang, Y
dc.date.accessioned2012-05-23T05:28:08Z
dc.date.available2012-05-23T05:28:08Z
dc.date.issued2012
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.description.naturelink_to_OA_fulltext
dc.descriptionOriginal article
dc.descriptionOpen Access Journal
dc.identifier.citationChinese Medical Journal, 2012, v. 125 n. 1, p. 119-122 [How to Cite?]
DOI: http://dx.doi.org/10.3760/cma.j.issn.0366-6999.2012.01.022
dc.identifier.doihttp://dx.doi.org/10.3760/cma.j.issn.0366-6999.2012.01.022
dc.identifier.epage122
dc.identifier.hkuros199775
dc.identifier.isiWOS:000300749400022
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.identifier.issn0366-6999
2011 Impact Factor: 0.864
2011 SCImago Journal Rankings: 0.077
dc.identifier.issue1
dc.identifier.pmid22340477
dc.identifier.scopuseid_2-s2.0-84862909950
dc.identifier.spage119
dc.identifier.urihttp://hdl.handle.net/10722/146832
dc.identifier.volume125
dc.languageeng
dc.publisherZhonghua Yixuehui. The Journal's web site is located at http://med.wanfangdata.com.cn/Paper/PeriodicalInfo.aspx?periodicalID=zhcmj
dc.publisher.placeChina
dc.relation.ispartofChinese Medical Journal
dc.relation.ispartof中华医学杂誌 (英文版)
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.subjectMalocclusion
dc.subjectXia Dynasty skulls
dc.subjectTooth crowding
dc.subjectDiastema
dc.subjectIndividual tooth malposition
dc.titleMalocclusions in Xia Dynasty in China
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Peking University