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Article: Root canal filled versus non-root canal filled teeth: A retrospective comparison of survival times

TitleRoot canal filled versus non-root canal filled teeth: A retrospective comparison of survival times
Authors
KeywordsEpidemiology
Proportional hazards regression
Root canal therapy
Survival analysis
Tooth loss
Issue Date2005
PublisherAmerican Association of Public Health Dentistry. The Journal's web site is located at http://www.aaphd.org/default.asp?page=masthead.htm
Citation
Journal Of Public Health Dentistry, 2005, v. 65 n. 2, p. 90-96 How to Cite?
AbstractObjective: This matched cohort study used data from a large dental HMO in the Pacific Northwest to evaluate the degree to which pulpal involvement and subsequent endodontic therapy affects tooth survival. Root canal filled (RCF) teeth were used as an indicator of pulpal involvement. Our hypothesis was that RCF teeth would be extracted sooner than non-RCF teeth matched within subjects, controlling for tooth-level variables of interest. Methods: The HMO's treatment databases and a subsequent chart audit were used to identify 202 eligible subjects, each of whom had one tooth endodontically treated in 1987-88 and a similar contralateral tooth that was non-RCF at that time. Both teeth were followed from the endodontic access date through the extraction date, the endodontic access date (for initially non-RCF teeth), or 12/31/94, whichever was earliest. Time-to-event analyses were carried out, with Kaplan-Meier curves generated and multivariable marginal proportional hazards regression models fitted to describe the effect of RCF status on tooth survival. All statistical analyses accounted for the complex sampling strategy used in generating the dataset. Results: Teeth were followed for up to eight (median=6.7) years. RCF teeth had substantially worse survival than their non-RCF counterparts (p<0.001), with a greater effect of RCF status evident among molars than non-molars. Adjusted hazard ratios (95% confidence intervals) for loss of RCF versus non-RCF molars and non-molars were 7.4 (3.2-15.1) and 1.8 (0.7-4.6), respectively. Conclusion: Though endodontic therapy can prolong tooth survival, pulpal involvement still may hasten tooth loss, underscoring the importance of caries prevention and prompt restorative care.
Persistent Identifierhttp://hdl.handle.net/10722/146560
ISSN
2015 Impact Factor: 1.182
2015 SCImago Journal Rankings: 0.603
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCaplan, DJen_HK
dc.contributor.authorCai, Jen_HK
dc.contributor.authorYin, Gen_HK
dc.contributor.authorWhite, BAen_HK
dc.date.accessioned2012-05-02T08:37:01Z-
dc.date.available2012-05-02T08:37:01Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal Of Public Health Dentistry, 2005, v. 65 n. 2, p. 90-96en_HK
dc.identifier.issn0022-4006en_HK
dc.identifier.urihttp://hdl.handle.net/10722/146560-
dc.description.abstractObjective: This matched cohort study used data from a large dental HMO in the Pacific Northwest to evaluate the degree to which pulpal involvement and subsequent endodontic therapy affects tooth survival. Root canal filled (RCF) teeth were used as an indicator of pulpal involvement. Our hypothesis was that RCF teeth would be extracted sooner than non-RCF teeth matched within subjects, controlling for tooth-level variables of interest. Methods: The HMO's treatment databases and a subsequent chart audit were used to identify 202 eligible subjects, each of whom had one tooth endodontically treated in 1987-88 and a similar contralateral tooth that was non-RCF at that time. Both teeth were followed from the endodontic access date through the extraction date, the endodontic access date (for initially non-RCF teeth), or 12/31/94, whichever was earliest. Time-to-event analyses were carried out, with Kaplan-Meier curves generated and multivariable marginal proportional hazards regression models fitted to describe the effect of RCF status on tooth survival. All statistical analyses accounted for the complex sampling strategy used in generating the dataset. Results: Teeth were followed for up to eight (median=6.7) years. RCF teeth had substantially worse survival than their non-RCF counterparts (p<0.001), with a greater effect of RCF status evident among molars than non-molars. Adjusted hazard ratios (95% confidence intervals) for loss of RCF versus non-RCF molars and non-molars were 7.4 (3.2-15.1) and 1.8 (0.7-4.6), respectively. Conclusion: Though endodontic therapy can prolong tooth survival, pulpal involvement still may hasten tooth loss, underscoring the importance of caries prevention and prompt restorative care.en_HK
dc.languageengen_US
dc.publisherAmerican Association of Public Health Dentistry. The Journal's web site is located at http://www.aaphd.org/default.asp?page=masthead.htmen_HK
dc.relation.ispartofJournal of Public Health Dentistryen_HK
dc.subjectEpidemiologyen_HK
dc.subjectProportional hazards regressionen_HK
dc.subjectRoot canal therapyen_HK
dc.subjectSurvival analysisen_HK
dc.subjectTooth lossen_HK
dc.subject.meshAdulten_US
dc.subject.meshDmf Indexen_US
dc.subject.meshDental Pulp Diseases - Epidemiologyen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshNorthwestern United States - Epidemiologyen_US
dc.subject.meshProportional Hazards Modelsen_US
dc.subject.meshRetrospective Studiesen_US
dc.subject.meshSurvival Analysisen_US
dc.subject.meshTooth Loss - Epidemiologyen_US
dc.subject.meshTooth, Nonvital - Epidemiologyen_US
dc.titleRoot canal filled versus non-root canal filled teeth: A retrospective comparison of survival timesen_HK
dc.typeArticleen_HK
dc.identifier.emailYin, G: gyin@hku.hken_HK
dc.identifier.authorityYin, G=rp00831en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid15929546-
dc.identifier.scopuseid_2-s2.0-17844381840en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-17844381840&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume65en_HK
dc.identifier.issue2en_HK
dc.identifier.spage90en_HK
dc.identifier.epage96en_HK
dc.identifier.isiWOS:000228789800004-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCaplan, DJ=7103249899en_HK
dc.identifier.scopusauthoridCai, J=7403153136en_HK
dc.identifier.scopusauthoridYin, G=8725807500en_HK
dc.identifier.scopusauthoridWhite, BA=35461620300en_HK

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