Reasons for tooth extractions in dental practices in Ontario, Canada according to tooth type
Identifieur interne : 004D78 ( Istex/Corpus ); précédent : 004D77; suivant : 004D79Reasons for tooth extractions in dental practices in Ontario, Canada according to tooth type
Auteurs : H. Murray ; M. Clarke ; D. Locker ; E. J. KaySource :
- International Dental Journal [ 0020-6539 ] ; 1997-02.
English descriptors
- KwdEn :
- Anterior teeth, Average number, Canadian population, Canine, Caries, Comm dent health, Common tooth type, Community dent, Current course, Dent, Dent assoc, Dental caries, Dental practices, Dental practitioners, Different tooth types, Extraction, Extractions dentaires, Health promotion survey, Higher percentage, Incisor, Lower canines, Lower incisors, Lower molars, Lower premolars, Molar, Month period, More extractions, More teeth, Ontario, Ontario health survey, Periodontal, Periodontal disease, Permanent teeth, Posterior teeth, Practice patterns, Premolar, Present study, Prosthodontic considerations, Reference week, Risk factors, Sampling frame, Second molars, Significant differences, Third molars, Tooth extraction, Tooth extractions, Tooth loss, Tooth type, Tooth types.
- Teeft :
- Anterior teeth, Average number, Canadian population, Canine, Caries, Comm dent health, Common tooth type, Community dent, Current course, Dent, Dent assoc, Dental caries, Dental practices, Dental practitioners, Different tooth types, Extraction, Extractions dentaires, Health promotion survey, Higher percentage, Incisor, Lower canines, Lower incisors, Lower molars, Lower premolars, Molar, Month period, More extractions, More teeth, Ontario, Ontario health survey, Periodontal, Periodontal disease, Permanent teeth, Posterior teeth, Practice patterns, Premolar, Present study, Prosthodontic considerations, Reference week, Risk factors, Sampling frame, Second molars, Significant differences, Third molars, Tooth extraction, Tooth extractions, Tooth loss, Tooth type, Tooth types.
Abstract
In a study of tooth extractions in general dental practices in Ontario, Canada, 165 dental practitioners provided information on 6134 patients attending during a reference week. Of these, 11.6 per cent of patients had one or more permanent teeth extracted. Periodontal disease was given as the reason for 35.9 per cent of these extractions and caries for 28.9 per cent. Analysis by tooth type showed that third molars were the most common tooth type extracted. However, there were differences in the types of teeth extracted by age. Posterior teeth were most frequently lost by the younger age groups and anterior teeth by older subjects. There were also differences in the reasons for the loss of different tooth types. A comparison of these results with those of a similar study in Scotland suggests that age and tooth type does not account for the excess of extractions due to periodontal disease in this Canadian population. Differences in practice patterns and attitudes towards the retention of teeth may be contributing factors. Raisons pour extractions dentaires dans des cabinets de l'Ontario, Canada, selon le type des dents
Url:
DOI: 10.1111/j.1875-595X.1997.tb00670.x
Links to Exploration step
ISTEX:9B6328555D6BEE48AE83AC169BE2D0708B892E31Le document en format XML
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Locker</name><affiliation><mods:affiliation>Toronto, Canada</mods:affiliation></affiliation></author><author><name sortKey="Kay, E J" sort="Kay, E J" uniqKey="Kay E" first="E. J." last="Kay">E. J. Kay</name><affiliation><mods:affiliation>Manchester, UK</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:9B6328555D6BEE48AE83AC169BE2D0708B892E31</idno><date when="1997" year="1997">1997</date><idno type="doi">10.1111/j.1875-595X.1997.tb00670.x</idno><idno type="url">https://api.istex.fr/document/9B6328555D6BEE48AE83AC169BE2D0708B892E31/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">004D78</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">004D78</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main">Reasons for tooth extractions in dental practices in Ontario, Canada according to tooth type</title><author><name sortKey="Murray, H" sort="Murray, H" uniqKey="Murray H" first="H." last="Murray">H. Murray</name><affiliation><mods:affiliation>Toronto, Canada</mods:affiliation></affiliation><affiliation><mods:affiliation>Correspondence address: Community Dental Health Services Research Unit, Faculty of Dentistry, University of Toronto, Toronto, Canada.</mods:affiliation></affiliation></author><author><name sortKey="Clarke, M" sort="Clarke, M" uniqKey="Clarke M" first="M." last="Clarke">M. Clarke</name><affiliation><mods:affiliation>Toronto, Canada</mods:affiliation></affiliation></author><author><name sortKey="Locker, D" sort="Locker, D" uniqKey="Locker D" first="D." last="Locker">D. Locker</name><affiliation><mods:affiliation>Toronto, Canada</mods:affiliation></affiliation></author><author><name sortKey="Kay, E J" sort="Kay, E J" uniqKey="Kay E" first="E. J." last="Kay">E. J. 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Of these, 11.6 per cent of patients had one or more permanent teeth extracted. Periodontal disease was given as the reason for 35.9 per cent of these extractions and caries for 28.9 per cent. Analysis by tooth type showed that third molars were the most common tooth type extracted. However, there were differences in the types of teeth extracted by age. Posterior teeth were most frequently lost by the younger age groups and anterior teeth by older subjects. There were also differences in the reasons for the loss of different tooth types. A comparison of these results with those of a similar study in Scotland suggests that age and tooth type does not account for the excess of extractions due to periodontal disease in this Canadian population. Differences in practice patterns and attitudes towards the retention of teeth may be contributing factors. 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Murray</name><affiliations><json:string>Toronto, Canada</json:string><json:string>Correspondence address: Community Dental Health Services Research Unit, Faculty of Dentistry, University of Toronto, Toronto, Canada.</json:string></affiliations></json:item><json:item><name>M. Clarke</name><affiliations><json:string>Toronto, Canada</json:string></affiliations></json:item><json:item><name>D. Locker</name><affiliations><json:string>Toronto, Canada</json:string></affiliations></json:item><json:item><name>E.J. Kay</name><affiliations><json:string>Manchester, UK</json:string></affiliations></json:item></author><articleId><json:string>IDJ670</json:string></articleId><arkIstex>ark:/67375/WNG-JBQT6H73-F</arkIstex><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>In a study of tooth extractions in general dental practices in Ontario, Canada, 165 dental practitioners provided information on 6134 patients attending during a reference week. Of these, 11.6 per cent of patients had one or more permanent teeth extracted. Periodontal disease was given as the reason for 35.9 per cent of these extractions and caries for 28.9 per cent. Analysis by tooth type showed that third molars were the most common tooth type extracted. However, there were differences in the types of teeth extracted by age. Posterior teeth were most frequently lost by the younger age groups and anterior teeth by older subjects. There were also differences in the reasons for the loss of different tooth types. A comparison of these results with those of a similar study in Scotland suggests that age and tooth type does not account for the excess of extractions due to periodontal disease in this Canadian population. Differences in practice patterns and attitudes towards the retention of teeth may be contributing factors. 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Summary
<p>In a study of tooth extractions in general dental practices in Ontario, Canada, 165 dental practitioners provided information on 6134 patients attending during a reference week. Of these, 11.6 per cent of patients had one or more permanent teeth extracted. Periodontal disease was given as the reason for 35.9 per cent of these extractions and caries for 28.9 per cent. Analysis by tooth type showed that third molars were the most common tooth type extracted. However, there were differences in the types of teeth extracted by age. Posterior teeth were most frequently lost by the younger age groups and anterior teeth by older subjects. There were also differences in the reasons for the loss of different tooth types. A comparison of these results with those of a similar study in Scotland suggests that age and tooth type does not account for the excess of extractions due to periodontal disease in this Canadian population. Differences in practice patterns and attitudes towards the retention of teeth may be contributing factors.</p><p>Raisons pour extractions dentaires dans des cabinets de l'Ontario, Canada, selon le type des dents</p>
R<hi rend="smallCaps">ésumé</hi><p>Dans une étude sur les extractions dentaires de tous les cabinets dentaires de l'Ontario, Canada, 165 praticiens dentaires avaient fourni des informations sur 6.134 patients pendant la semaine de l'étude. 11,6 pour cent des patients présentaient au moins une dent permanente extraite. La raison donnée pour 35,9 pour cent de ces extractions était la parodontopathie, alors que pour 28,9 pour cent, c'était la carie. Une analyse par type de dents indiquait que la troisième molaire était la dent la plus communément extraite. Cependant, il y avait des différences selon l'âge dans le type de dents extraites. Les groupes d'âge les plus jeunes présentaient des dents postérieures plus fréquemment absentes, alors que pour les sujets plus âgés, c'était les dents antérieures. Il existait également des raisons variées ayant provoqué la chute des différents types de dents. Une comparaison de ces résultats avec ceux d'une étude similaire réalisée en Ecosse suggère que l'âge et le type des dents n'avaient aucune influence sur le nombre excessif d'extractions dues aux parodontopathies chez cette population canadienne. Des différences dans les schémas d'exercice et les attitudes concernant la conservation de dents pouvaient être des facteurs complémentaires.</p><p>Gründe für Zahnextraktionen unter Berücksichtigung des Zahntyps – aufgezeigt am Beispiel von Praxen in Ontario</p>
Zusammenfassung
<p>Im Rahmen einer in allgemeinen Zahnarztpraxen der kanadischen Stadt Ontario durchgeführten Untersuchung stellten 165 Zahnäarzte Informationen zu insgesamt 6134 Patienten zur Verfügung, die sich auf einen einwöchigen Zeitraum beziehen. Bei 11,6 Prozent der Personen erfolgte die Extraktion eines oder mehrerer bleibender Zähne. In 35,9 Prozent der Fälle wurden Parodontalerkrankungen und bei 28,9 Prozent Karies als Extraktionsursache angeführt. In der Mehrzahl der Fälle handelte es sich bei dem extrahierten Zahntyp um den dritten Molar. Allerdings ergaben sich Unterschiede bei Mitberücksichtigung des Patientenalters als Kriterium. Innerhalb der jüngeren Altersgruppen kam es häufiger zur Extraktion hinterer Zähne, während es sich bei den höheren Altersgruppen vorwiegend um vordere Zähne handelte. Unterschiede bestanden auch hinsichtlich der Ursache für den Verlust des jeweiligen Zahntyps. Der Vergleich dieser Resultate mit denen einer ähnlichen, in Schottland durchgeführten Studie läßt die Schlußfolgerung zu, daß die Faktoren Alter und Zahntyp in bezug auf die übermäßige Zahl von Extraktionen aufgrund von Parodontalerkrankungen in der kanadischen Studie ausscheiden. Wahrscheinlicher sind vielmehr unterschiedliche Auffassungen bezüglich der Behandlungsweise und des Erhalts der eigenen Zähne.</p><p>Causas de las exodoncias realizadas en clínicas dentales de Ontario, Canadá, según el tipo de diente</p>
Resumen
<p>En un estudio sobre extracciones dentales realizadas en las clínicas dentales generates de Ontario, Canadá, 165 odontólogos proporcionaron información sobre 6.134 pacientes que asistieron durante una determinada semana. De estos pacientes, 11,6 por ciento sufrieron la extración de uno o más dientes permanentes. En 35,9 por ciento de estos casos se citó a la enfermedad periodontal como causa de las extracciones y a la caries en 28,9 por ciento de ellos. El análisis por tipo de diente mostró que los terceros molares constituyeron el tipo de diente extraído con mayor frecuencia. Sin embargo, hubo diferencias en el tipo de dientes extraídos según la edad. Entre los individuos de mayor edad las piezas dentales perdidas con mayor frecuencia fueron las anteriores y entre los grupos más jóvenes fueron las posteriores. También hubo diferencias entre las causas de la pérdida de diferentes tipos de dientes. La comparación de estos resultados con los de un estudio anterior realizado en Escocia sugiere que la edad y el tipo de dientes no pueden justificar, por sí solos, la mayor cantidad de extracciones atribuidas a la enfermedad periodontal que se realiza en esta población de Canadá. Las diferencias en los patrones de práctica odontológica y en las actitudes respecto a la retención de los dientes naturales pueden haber sido factores contribuyentes.</p></abstract><textClass><keywords rend="tocHeading1"><term>Original Article</term></keywords></textClass><langUsage><language ident="en"></language></langUsage></profileDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/9B6328555D6BEE48AE83AC169BE2D0708B892E31/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Ltd</publisherName><publisherLoc>Oxford, UK</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1002/(ISSN)1875-595X</doi><issn type="print">0020-6539</issn><issn type="electronic">1875-595X</issn><idGroup><id type="product" value="IDJ"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="INTERNATIONAL DENTAL JOURNAL">International Dental Journal</title></titleGroup></publicationMeta><publicationMeta level="part" position="02101"><doi origin="wiley">10.1111/idj.1997.47.issue-1</doi><numberingGroup><numbering type="journalVolume" number="47">47</numbering><numbering type="journalIssue" number="1">1</numbering></numberingGroup><coverDate startDate="1997-02">February 1997</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="1" status="forIssue"><doi origin="wiley">10.1111/j.1875-595X.1997.tb00670.x</doi><idGroup><id type="unit" value="IDJ670"></id></idGroup><countGroup><count type="pageTotal" number="6"></count></countGroup><titleGroup><title type="tocHeading1">Original Article</title></titleGroup><copyright>1997 FDI/World Dental Press</copyright><eventGroup><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:2.4.9 mode:FullText" date="2011-05-09"></event><event type="firstOnline" date="2011-09-06"></event><event type="publishedOnlineFinalForm" date="2011-09-06"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-27"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-23"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="3">3</numbering><numbering type="pageLast" number="8">8</numbering></numberingGroup><correspondenceTo>Community Dental Health Services Research Unit, Faculty of Dentistry, University of Toronto, Toronto, Canada.</correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:IDJ.IDJ670.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="referenceTotal" number="20"></count><count type="linksCrossRef" number="5"></count></countGroup><titleGroup><title type="main">Reasons for tooth extractions in dental practices in Ontario, Canada according to tooth type</title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1" corresponding="yes"><personName><givenNames>H.</givenNames><familyName>Murray</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a1"><personName><givenNames>M.</givenNames><familyName>Clarke</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a1"><personName><givenNames>D.</givenNames><familyName>Locker</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a2"><personName><givenNames>E.J.</givenNames><familyName>Kay</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="CA"><unparsedAffiliation>Toronto, Canada</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="GB"><unparsedAffiliation>Manchester, UK</unparsedAffiliation></affiliation></affiliationGroup><abstractGroup><abstract type="main" xml:lang="en"><section xml:id="abs1-1"><title type="main">Summary</title><p>In a study of tooth extractions in general dental practices in Ontario, Canada, 165 dental practitioners provided information on 6134 patients attending during a reference week. Of these, 11.6 per cent of patients had one or more permanent teeth extracted. Periodontal disease was given as the reason for 35.9 per cent of these extractions and caries for 28.9 per cent. Analysis by tooth type showed that third molars were the most common tooth type extracted. However, there were differences in the types of teeth extracted by age. Posterior teeth were most frequently lost by the younger age groups and anterior teeth by older subjects. There were also differences in the reasons for the loss of different tooth types. A comparison of these results with those of a similar study in Scotland suggests that age and tooth type does not account for the excess of extractions due to periodontal disease in this Canadian population. Differences in practice patterns and attitudes towards the retention of teeth may be contributing factors.</p><p>Raisons pour extractions dentaires dans des cabinets de l'Ontario, Canada, selon le type des dents</p></section><section xml:id="abs1-2"><title type="main">R<sc>ésumé</sc></title><p>Dans une étude sur les extractions dentaires de tous les cabinets dentaires de l'Ontario, Canada, 165 praticiens dentaires avaient fourni des informations sur 6.134 patients pendant la semaine de l'étude. 11,6 pour cent des patients présentaient au moins une dent permanente extraite. La raison donnée pour 35,9 pour cent de ces extractions était la parodontopathie, alors que pour 28,9 pour cent, c'était la carie. Une analyse par type de dents indiquait que la troisième molaire était la dent la plus communément extraite. Cependant, il y avait des différences selon l'âge dans le type de dents extraites. Les groupes d'âge les plus jeunes présentaient des dents postérieures plus fréquemment absentes, alors que pour les sujets plus âgés, c'était les dents antérieures. Il existait également des raisons variées ayant provoqué la chute des différents types de dents. Une comparaison de ces résultats avec ceux d'une étude similaire réalisée en Ecosse suggère que l'âge et le type des dents n'avaient aucune influence sur le nombre excessif d'extractions dues aux parodontopathies chez cette population canadienne. Des différences dans les schémas d'exercice et les attitudes concernant la conservation de dents pouvaient être des facteurs complémentaires.</p><p>Gründe für Zahnextraktionen unter Berücksichtigung des Zahntyps – aufgezeigt am Beispiel von Praxen in Ontario</p></section><section xml:id="abs1-3"><title type="main">Zusammenfassung</title><p>Im Rahmen einer in allgemeinen Zahnarztpraxen der kanadischen Stadt Ontario durchgeführten Untersuchung stellten 165 Zahnäarzte Informationen zu insgesamt 6134 Patienten zur Verfügung, die sich auf einen einwöchigen Zeitraum beziehen. Bei 11,6 Prozent der Personen erfolgte die Extraktion eines oder mehrerer bleibender Zähne. In 35,9 Prozent der Fälle wurden Parodontalerkrankungen und bei 28,9 Prozent Karies als Extraktionsursache angeführt. In der Mehrzahl der Fälle handelte es sich bei dem extrahierten Zahntyp um den dritten Molar. Allerdings ergaben sich Unterschiede bei Mitberücksichtigung des Patientenalters als Kriterium. Innerhalb der jüngeren Altersgruppen kam es häufiger zur Extraktion hinterer Zähne, während es sich bei den höheren Altersgruppen vorwiegend um vordere Zähne handelte. Unterschiede bestanden auch hinsichtlich der Ursache für den Verlust des jeweiligen Zahntyps. Der Vergleich dieser Resultate mit denen einer ähnlichen, in Schottland durchgeführten Studie läßt die Schlußfolgerung zu, daß die Faktoren Alter und Zahntyp in bezug auf die übermäßige Zahl von Extraktionen aufgrund von Parodontalerkrankungen in der kanadischen Studie ausscheiden. Wahrscheinlicher sind vielmehr unterschiedliche Auffassungen bezüglich der Behandlungsweise und des Erhalts der eigenen Zähne.</p><p>Causas de las exodoncias realizadas en clínicas dentales de Ontario, Canadá, según el tipo de diente</p></section><section xml:id="abs1-4"><title type="main">Resumen</title><p>En un estudio sobre extracciones dentales realizadas en las clínicas dentales generates de Ontario, Canadá, 165 odontólogos proporcionaron información sobre 6.134 pacientes que asistieron durante una determinada semana. De estos pacientes, 11,6 por ciento sufrieron la extración de uno o más dientes permanentes. En 35,9 por ciento de estos casos se citó a la enfermedad periodontal como causa de las extracciones y a la caries en 28,9 por ciento de ellos. El análisis por tipo de diente mostró que los terceros molares constituyeron el tipo de diente extraído con mayor frecuencia. Sin embargo, hubo diferencias en el tipo de dientes extraídos según la edad. Entre los individuos de mayor edad las piezas dentales perdidas con mayor frecuencia fueron las anteriores y entre los grupos más jóvenes fueron las posteriores. También hubo diferencias entre las causas de la pérdida de diferentes tipos de dientes. La comparación de estos resultados con los de un estudio anterior realizado en Escocia sugiere que la edad y el tipo de dientes no pueden justificar, por sí solos, la mayor cantidad de extracciones atribuidas a la enfermedad periodontal que se realiza en esta población de Canadá. Las diferencias en los patrones de práctica odontológica y en las actitudes respecto a la retención de los dientes naturales pueden haber sido factores contribuyentes.</p></section></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Reasons for tooth extractions in dental practices in Ontario, Canada according to tooth type</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Reasons for tooth extractions in dental practices in Ontario, Canada according to tooth type</title></titleInfo><name type="personal"><namePart type="given">H.</namePart><namePart type="family">Murray</namePart><affiliation>Toronto, Canada</affiliation><affiliation>Correspondence address: Community Dental Health Services Research Unit, Faculty of Dentistry, University of Toronto, Toronto, Canada.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Clarke</namePart><affiliation>Toronto, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">D.</namePart><namePart type="family">Locker</namePart><affiliation>Toronto, Canada</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">E.J.</namePart><namePart type="family">Kay</namePart><affiliation>Manchester, UK</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-6N5SZHKN-D">article</genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">1997-02</dateIssued><copyrightDate encoding="w3cdtf">1997</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><extent unit="references">20</extent><extent unit="linksCrossRef">5</extent></physicalDescription><abstract lang="en">In a study of tooth extractions in general dental practices in Ontario, Canada, 165 dental practitioners provided information on 6134 patients attending during a reference week. Of these, 11.6 per cent of patients had one or more permanent teeth extracted. Periodontal disease was given as the reason for 35.9 per cent of these extractions and caries for 28.9 per cent. Analysis by tooth type showed that third molars were the most common tooth type extracted. However, there were differences in the types of teeth extracted by age. Posterior teeth were most frequently lost by the younger age groups and anterior teeth by older subjects. There were also differences in the reasons for the loss of different tooth types. A comparison of these results with those of a similar study in Scotland suggests that age and tooth type does not account for the excess of extractions due to periodontal disease in this Canadian population. Differences in practice patterns and attitudes towards the retention of teeth may be contributing factors. Raisons pour extractions dentaires dans des cabinets de l'Ontario, Canada, selon le type des dents</abstract><abstract>Dans une étude sur les extractions dentaires de tous les cabinets dentaires de l'Ontario, Canada, 165 praticiens dentaires avaient fourni des informations sur 6.134 patients pendant la semaine de l'étude. 11,6 pour cent des patients présentaient au moins une dent permanente extraite. La raison donnée pour 35,9 pour cent de ces extractions était la parodontopathie, alors que pour 28,9 pour cent, c'était la carie. Une analyse par type de dents indiquait que la troisième molaire était la dent la plus communément extraite. Cependant, il y avait des différences selon l'âge dans le type de dents extraites. Les groupes d'âge les plus jeunes présentaient des dents postérieures plus fréquemment absentes, alors que pour les sujets plus âgés, c'était les dents antérieures. Il existait également des raisons variées ayant provoqué la chute des différents types de dents. Une comparaison de ces résultats avec ceux d'une étude similaire réalisée en Ecosse suggère que l'âge et le type des dents n'avaient aucune influence sur le nombre excessif d'extractions dues aux parodontopathies chez cette population canadienne. Des différences dans les schémas d'exercice et les attitudes concernant la conservation de dents pouvaient être des facteurs complémentaires. Gründe für Zahnextraktionen unter Berücksichtigung des Zahntyps – aufgezeigt am Beispiel von Praxen in Ontario</abstract><abstract lang="de">Im Rahmen einer in allgemeinen Zahnarztpraxen der kanadischen Stadt Ontario durchgeführten Untersuchung stellten 165 Zahnäarzte Informationen zu insgesamt 6134 Patienten zur Verfügung, die sich auf einen einwöchigen Zeitraum beziehen. Bei 11,6 Prozent der Personen erfolgte die Extraktion eines oder mehrerer bleibender Zähne. In 35,9 Prozent der Fälle wurden Parodontalerkrankungen und bei 28,9 Prozent Karies als Extraktionsursache angeführt. In der Mehrzahl der Fälle handelte es sich bei dem extrahierten Zahntyp um den dritten Molar. Allerdings ergaben sich Unterschiede bei Mitberücksichtigung des Patientenalters als Kriterium. Innerhalb der jüngeren Altersgruppen kam es häufiger zur Extraktion hinterer Zähne, während es sich bei den höheren Altersgruppen vorwiegend um vordere Zähne handelte. Unterschiede bestanden auch hinsichtlich der Ursache für den Verlust des jeweiligen Zahntyps. Der Vergleich dieser Resultate mit denen einer ähnlichen, in Schottland durchgeführten Studie läßt die Schlußfolgerung zu, daß die Faktoren Alter und Zahntyp in bezug auf die übermäßige Zahl von Extraktionen aufgrund von Parodontalerkrankungen in der kanadischen Studie ausscheiden. Wahrscheinlicher sind vielmehr unterschiedliche Auffassungen bezüglich der Behandlungsweise und des Erhalts der eigenen Zähne. Causas de las exodoncias realizadas en clínicas dentales de Ontario, Canadá, según el tipo de diente</abstract><abstract lang="es">En un estudio sobre extracciones dentales realizadas en las clínicas dentales generates de Ontario, Canadá, 165 odontólogos proporcionaron información sobre 6.134 pacientes que asistieron durante una determinada semana. De estos pacientes, 11,6 por ciento sufrieron la extración de uno o más dientes permanentes. En 35,9 por ciento de estos casos se citó a la enfermedad periodontal como causa de las extracciones y a la caries en 28,9 por ciento de ellos. El análisis por tipo de diente mostró que los terceros molares constituyeron el tipo de diente extraído con mayor frecuencia. Sin embargo, hubo diferencias en el tipo de dientes extraídos según la edad. Entre los individuos de mayor edad las piezas dentales perdidas con mayor frecuencia fueron las anteriores y entre los grupos más jóvenes fueron las posteriores. También hubo diferencias entre las causas de la pérdida de diferentes tipos de dientes. La comparación de estos resultados con los de un estudio anterior realizado en Escocia sugiere que la edad y el tipo de dientes no pueden justificar, por sí solos, la mayor cantidad de extracciones atribuidas a la enfermedad periodontal que se realiza en esta población de Canadá. Las diferencias en los patrones de práctica odontológica y en las actitudes respecto a la retención de los dientes naturales pueden haber sido factores contribuyentes.</abstract><relatedItem type="host"><titleInfo><title>International Dental Journal</title></titleInfo><genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><identifier type="ISSN">0020-6539</identifier><identifier type="eISSN">1875-595X</identifier><identifier type="DOI">10.1002/(ISSN)1875-595X</identifier><identifier type="PublisherID">IDJ</identifier><part><date>1997</date><detail type="volume"><caption>vol.</caption><number>47</number></detail><detail type="issue"><caption>no.</caption><number>1</number></detail><extent unit="pages"><start>3</start><end>8</end><total>6</total></extent></part></relatedItem><identifier type="istex">9B6328555D6BEE48AE83AC169BE2D0708B892E31</identifier><identifier type="ark">ark:/67375/WNG-JBQT6H73-F</identifier><identifier type="DOI">10.1111/j.1875-595X.1997.tb00670.x</identifier><identifier type="ArticleID">IDJ670</identifier><accessCondition type="use and reproduction" contentType="copyright">1997 FDI/World Dental Press</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-L0C46X92-X">wiley</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/9B6328555D6BEE48AE83AC169BE2D0708B892E31/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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