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Article: Long-term survival of primary root canal treatment carried out in a dental teaching hospital

TitleLong-term survival of primary root canal treatment carried out in a dental teaching hospital
Authors
KeywordsFailure
Longevity
Success
Survival analysis
Treatment outcome
Issue Date2003
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/IEJ
Citation
International Endodontic Journal, 2003, v. 36 n. 2, p. 117-128 How to Cite?
AbstractAim: This study aimed to examine clinically and radiographically the survival of primary root canal treatment completed in a dental teaching hospital between 10 and 20 years previously. Methodology: A data collection form was used to collate all information obtained from the written patients' records along with the results from clinical and radiographic examination of 608 teeth, out of a total of 986 randomly selected teeth that had been root filled in the Prince Philip Dental Hospital (PPDH), Hong Kong, between 1981 and 1989. The criteria for failure were extractions (except for documented nonendodontic reason), retreatments and presence of a periapical radiolucency. The survival function of the treated teeth was plotted against the calculated date of failure using the Kaplan-Meier (K-M) method. Covariables were examined further by Cox Regression analysis with a backward stepwise method. Results: A total of 314 teeth (52%) were either documented or deemed to have failed after examination. The median survival time was 111 months. Cox Regression analysis indicated that the survival of root-filled teeth was significantly influenced by the tooth type, preoperative periapical status and the type of coronal restoration. The survival function declined with time. with a rapid drop in the first 18 months or so. The rate at which failures occurred appeared to slow down with a longer observation time. Conclusions: There was a nonlinear decline in the cumulative survival probability of primary root canal treatment. Tooth type, preoperative periapical status and type of post and final restoration significantly affected the long-term survival of the treated teeth.
Persistent Identifierhttp://hdl.handle.net/10722/67205
ISSN
2015 Impact Factor: 2.842
2015 SCImago Journal Rankings: 2.020
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheung, GSPen_HK
dc.contributor.authorChan, TKen_HK
dc.date.accessioned2010-09-06T05:52:52Z-
dc.date.available2010-09-06T05:52:52Z-
dc.date.issued2003en_HK
dc.identifier.citationInternational Endodontic Journal, 2003, v. 36 n. 2, p. 117-128en_HK
dc.identifier.issn0143-2885en_HK
dc.identifier.urihttp://hdl.handle.net/10722/67205-
dc.description.abstractAim: This study aimed to examine clinically and radiographically the survival of primary root canal treatment completed in a dental teaching hospital between 10 and 20 years previously. Methodology: A data collection form was used to collate all information obtained from the written patients' records along with the results from clinical and radiographic examination of 608 teeth, out of a total of 986 randomly selected teeth that had been root filled in the Prince Philip Dental Hospital (PPDH), Hong Kong, between 1981 and 1989. The criteria for failure were extractions (except for documented nonendodontic reason), retreatments and presence of a periapical radiolucency. The survival function of the treated teeth was plotted against the calculated date of failure using the Kaplan-Meier (K-M) method. Covariables were examined further by Cox Regression analysis with a backward stepwise method. Results: A total of 314 teeth (52%) were either documented or deemed to have failed after examination. The median survival time was 111 months. Cox Regression analysis indicated that the survival of root-filled teeth was significantly influenced by the tooth type, preoperative periapical status and the type of coronal restoration. The survival function declined with time. with a rapid drop in the first 18 months or so. The rate at which failures occurred appeared to slow down with a longer observation time. Conclusions: There was a nonlinear decline in the cumulative survival probability of primary root canal treatment. Tooth type, preoperative periapical status and type of post and final restoration significantly affected the long-term survival of the treated teeth.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/IEJen_HK
dc.relation.ispartofInternational Endodontic Journalen_HK
dc.rightsInternational Endodontic Journal. Copyright © Blackwell Publishing Ltd.en_HK
dc.subjectFailureen_HK
dc.subjectLongevityen_HK
dc.subjectSuccessen_HK
dc.subjectSurvival analysisen_HK
dc.subjectTreatment outcomeen_HK
dc.titleLong-term survival of primary root canal treatment carried out in a dental teaching hospitalen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0143-2885&volume=36&spage=117&epage=128&date=2003&atitle=Long-term+Survival+of+Primary+Root+Canal+Treatment+Carried+out+in+a+Dental+Teaching+Hospitalen_HK
dc.identifier.emailCheung, GSP:spcheung@hkucc.hku.hken_HK
dc.identifier.authorityCheung, GSP=rp00016en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1365-2591.2003.00639.xen_HK
dc.identifier.scopuseid_2-s2.0-0038485654en_HK
dc.identifier.hkuros78391en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0038485654&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume36en_HK
dc.identifier.issue2en_HK
dc.identifier.spage117en_HK
dc.identifier.epage128en_HK
dc.identifier.isiWOS:000180744400006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheung, GSP=7005809531en_HK
dc.identifier.scopusauthoridChan, TK=7402687535en_HK

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