Dental and prosthodontic status of an over 40 year-old population in Shandong Province, China
Identifieur interne : 002862 ( Pmc/Curation ); précédent : 002861; suivant : 002863Dental and prosthodontic status of an over 40 year-old population in Shandong Province, China
Auteurs : Qian Zhang [République populaire de Chine] ; Dick J. Witter [Pays-Bas] ; Ewald M. Bronkhorst [Pays-Bas] ; Nico Hj Creugers [Pays-Bas]Source :
- BMC Public Health [ 1471-2458 ] ; 2011.
Abstract
This study aims to (1) describe the dental status using DMFT for the whole dentition and the anterior, premolar and molar regions; (2) determine associations of demographic variables and socio-economic status (SES) with DMFT and tooth replacement; (3) analyze to what extent the goal as proposed by the WHO -'the retention of not less than 20 teeth throughout life' is achieved.
DMFT and tooth replacement data of 1588 subjects over 40 years from urban and rural sites in Qingdao (Shandong Province, China) were collected. Relative D, M, and F scores per dental region were calculated and compared by paired T-tests. Multivariable logistic regression was used to determine relationships with age, gender, place of residence, and SES.
Mean numbers of D and F were low (1.36 respectively 0.27) at all ages. Molars had highest chance for D and M. For the molar region every additional year of age gave significantly lower chance for D and higher chance for M (OR: 0.98 and 1.02 respectively; both p ≤ 0.01). Mean number of M was associated with age (approximately 1.5 in each jaw at 40 years and 6 at 80 years). Females had higher chance for D (OR: 1.34; p ≤ 0.05) and F (OR: 1.69; p ≤ 0.01), and lower chance for M (OR: 0.60; p ≤ 0.01). Urban and rural subjects had similar chance for D; urban subjects had approximately 5 times more chance for F (p ≤ 0.01). SES had no relationship with D and M, however SES low was associated with F (OR: 0.45; p ≤ 0.01). Replacements were significantly associated with age (all dental regions except anterior region), gender (all dental regions), place of residence (whole dentition and molar region), and SES (whole dentition and premolar and molar regions).
The majority of subjects presented a reduced dentition. Molars were most frequently affected by D and M. D, M, F and replaced teeth were associated with the background variables, however differently for different dental regions. Above the age of 70 years, only 64% of the subjects presented 'not less than 20 natural teeth'.
Url:
DOI: 10.1186/1471-2458-11-420
PubMed: 21631917
PubMed Central: 3129312
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<author><name sortKey="Zhang, Qian" sort="Zhang, Qian" uniqKey="Zhang Q" first="Qian" last="Zhang">Qian Zhang</name>
<affiliation wicri:level="1"><nlm:aff id="I1">Department of Prosthetic Dentistry, Affiliated Hospital of Medical School, Qingdao University, Jiangsu Road 16#, Qingdao, P.R. China</nlm:aff>
<country xml:lang="fr" wicri:curation="lc">République populaire de Chine</country>
<wicri:regionArea>Department of Prosthetic Dentistry, Affiliated Hospital of Medical School, Qingdao University, Jiangsu Road 16#, Qingdao</wicri:regionArea>
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<author><name sortKey="Witter, Dick J" sort="Witter, Dick J" uniqKey="Witter D" first="Dick J" last="Witter">Dick J. Witter</name>
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<author><name sortKey="Zhang, Qian" sort="Zhang, Qian" uniqKey="Zhang Q" first="Qian" last="Zhang">Qian Zhang</name>
<affiliation wicri:level="1"><nlm:aff id="I1">Department of Prosthetic Dentistry, Affiliated Hospital of Medical School, Qingdao University, Jiangsu Road 16#, Qingdao, P.R. China</nlm:aff>
<country xml:lang="fr" wicri:curation="lc">République populaire de Chine</country>
<wicri:regionArea>Department of Prosthetic Dentistry, Affiliated Hospital of Medical School, Qingdao University, Jiangsu Road 16#, Qingdao</wicri:regionArea>
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<author><name sortKey="Witter, Dick J" sort="Witter, Dick J" uniqKey="Witter D" first="Dick J" last="Witter">Dick J. Witter</name>
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<country xml:lang="fr">Pays-Bas</country>
<wicri:regionArea>Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen</wicri:regionArea>
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<author><name sortKey="Bronkhorst, Ewald M" sort="Bronkhorst, Ewald M" uniqKey="Bronkhorst E" first="Ewald M" last="Bronkhorst">Ewald M. Bronkhorst</name>
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<author><name sortKey="Creugers, Nico Hj" sort="Creugers, Nico Hj" uniqKey="Creugers N" first="Nico Hj" last="Creugers">Nico Hj Creugers</name>
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<country xml:lang="fr">Pays-Bas</country>
<wicri:regionArea>Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen</wicri:regionArea>
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<front><div type="abstract" xml:lang="en"><sec><title>Background</title>
<p>This study aims to (1) describe the dental status using DMFT for the whole dentition and the anterior, premolar and molar regions; (2) determine associations of demographic variables and socio-economic status (SES) with DMFT and tooth replacement; (3) analyze to what extent the goal as proposed by the WHO -'the retention of not less than 20 teeth throughout life' is achieved.</p>
</sec>
<sec><title>Methods</title>
<p>DMFT and tooth replacement data of 1588 subjects over 40 years from urban and rural sites in Qingdao (Shandong Province, China) were collected. Relative D, M, and F scores per dental region were calculated and compared by paired T-tests. Multivariable logistic regression was used to determine relationships with age, gender, place of residence, and SES.</p>
</sec>
<sec><title>Results</title>
<p>Mean numbers of D and F were low (1.36 respectively 0.27) at all ages. Molars had highest chance for D and M. For the molar region every additional year of age gave significantly lower chance for D and higher chance for M (OR: 0.98 and 1.02 respectively; both p ≤ 0.01). Mean number of M was associated with age (approximately 1.5 in each jaw at 40 years and 6 at 80 years). Females had higher chance for D (OR: 1.34; p ≤ 0.05) and F (OR: 1.69; p ≤ 0.01), and lower chance for M (OR: 0.60; p ≤ 0.01). Urban and rural subjects had similar chance for D; urban subjects had approximately 5 times more chance for F (p ≤ 0.01). SES had no relationship with D and M, however SES low was associated with F (OR: 0.45; p ≤ 0.01). Replacements were significantly associated with age (all dental regions except anterior region), gender (all dental regions), place of residence (whole dentition and molar region), and SES (whole dentition and premolar and molar regions).</p>
</sec>
<sec><title>Conclusions</title>
<p>The majority of subjects presented a reduced dentition. Molars were most frequently affected by D and M. D, M, F and replaced teeth were associated with the background variables, however differently for different dental regions. Above the age of 70 years, only 64% of the subjects presented 'not less than 20 natural teeth'.</p>
</sec>
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<front><journal-meta><journal-id journal-id-type="nlm-ta">BMC Public Health</journal-id>
<journal-title-group><journal-title>BMC Public Health</journal-title>
</journal-title-group>
<issn pub-type="epub">1471-2458</issn>
<publisher><publisher-name>BioMed Central</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">21631917</article-id>
<article-id pub-id-type="pmc">3129312</article-id>
<article-id pub-id-type="publisher-id">1471-2458-11-420</article-id>
<article-id pub-id-type="doi">10.1186/1471-2458-11-420</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject>
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<title-group><article-title>Dental and prosthodontic status of an over 40 year-old population in Shandong Province, China</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" corresp="yes" id="A1"><name><surname>Zhang</surname>
<given-names>Qian</given-names>
</name>
<xref ref-type="aff" rid="I1">1</xref>
<email>q.zhang@dent.umcn.nl</email>
</contrib>
<contrib contrib-type="author" id="A2"><name><surname>Witter</surname>
<given-names>Dick J</given-names>
</name>
<xref ref-type="aff" rid="I2">2</xref>
<email>d.witter@dent.umcn.nl</email>
</contrib>
<contrib contrib-type="author" id="A3"><name><surname>Bronkhorst</surname>
<given-names>Ewald M</given-names>
</name>
<xref ref-type="aff" rid="I3">3</xref>
<email>e.bronkhorst@dent.umcn.nl</email>
</contrib>
<contrib contrib-type="author" id="A4"><name><surname>Creugers</surname>
<given-names>Nico HJ</given-names>
</name>
<xref ref-type="aff" rid="I2">2</xref>
<email>n.creugers@dent.umcn.nl</email>
</contrib>
</contrib-group>
<aff id="I1"><label>1</label>
Department of Prosthetic Dentistry, Affiliated Hospital of Medical School, Qingdao University, Jiangsu Road 16#, Qingdao, P.R. China</aff>
<aff id="I2"><label>2</label>
Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen, The Netherlands</aff>
<aff id="I3"><label>3</label>
Department of Preventive and Restorative Dentistry, College of Dental Science, Radboud University Nijmegen Medical Centre, Philips van Leydenlaan 25, 6525 EX, Nijmegen, The Netherlands</aff>
<pub-date pub-type="collection"><year>2011</year>
</pub-date>
<pub-date pub-type="epub"><day>1</day>
<month>6</month>
<year>2011</year>
</pub-date>
<volume>11</volume>
<fpage>420</fpage>
<lpage>420</lpage>
<history><date date-type="received"><day>9</day>
<month>11</month>
<year>2010</year>
</date>
<date date-type="accepted"><day>1</day>
<month>6</month>
<year>2011</year>
</date>
</history>
<permissions><copyright-statement>Copyright ©2011 Zhang et al; licensee BioMed Central Ltd.</copyright-statement>
<copyright-year>2011</copyright-year>
<copyright-holder>Zhang et al; licensee BioMed Central Ltd.</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/2.0">http://creativecommons.org/licenses/by/2.0</ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://www.biomedcentral.com/1471-2458/11/420"></self-uri>
<abstract><sec><title>Background</title>
<p>This study aims to (1) describe the dental status using DMFT for the whole dentition and the anterior, premolar and molar regions; (2) determine associations of demographic variables and socio-economic status (SES) with DMFT and tooth replacement; (3) analyze to what extent the goal as proposed by the WHO -'the retention of not less than 20 teeth throughout life' is achieved.</p>
</sec>
<sec><title>Methods</title>
<p>DMFT and tooth replacement data of 1588 subjects over 40 years from urban and rural sites in Qingdao (Shandong Province, China) were collected. Relative D, M, and F scores per dental region were calculated and compared by paired T-tests. Multivariable logistic regression was used to determine relationships with age, gender, place of residence, and SES.</p>
</sec>
<sec><title>Results</title>
<p>Mean numbers of D and F were low (1.36 respectively 0.27) at all ages. Molars had highest chance for D and M. For the molar region every additional year of age gave significantly lower chance for D and higher chance for M (OR: 0.98 and 1.02 respectively; both p ≤ 0.01). Mean number of M was associated with age (approximately 1.5 in each jaw at 40 years and 6 at 80 years). Females had higher chance for D (OR: 1.34; p ≤ 0.05) and F (OR: 1.69; p ≤ 0.01), and lower chance for M (OR: 0.60; p ≤ 0.01). Urban and rural subjects had similar chance for D; urban subjects had approximately 5 times more chance for F (p ≤ 0.01). SES had no relationship with D and M, however SES low was associated with F (OR: 0.45; p ≤ 0.01). Replacements were significantly associated with age (all dental regions except anterior region), gender (all dental regions), place of residence (whole dentition and molar region), and SES (whole dentition and premolar and molar regions).</p>
</sec>
<sec><title>Conclusions</title>
<p>The majority of subjects presented a reduced dentition. Molars were most frequently affected by D and M. D, M, F and replaced teeth were associated with the background variables, however differently for different dental regions. Above the age of 70 years, only 64% of the subjects presented 'not less than 20 natural teeth'.</p>
</sec>
</abstract>
</article-meta>
</front>
</pmc>
</record>
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