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Article: Fate of vital pulps beneath a metal-ceramic crown or a bridge retainer

TitleFate of vital pulps beneath a metal-ceramic crown or a bridge retainer
Authors
Issue Date2005
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/IEJ
Citation
International Endodontic Journal, 2005, v. 38 n. 8, p. 521-530 How to Cite?
AbstractAim: To investigate the incidence of and factors associated with pulpal necrosis in vital teeth restored with metal-ceramic crowns (CMCs) or crowned as part of a fixed-fixed bridge. Methodology: Patients who had a CMC or bridge retainer (BR) placed on a tooth with no previous history of root canal treatment from 1981 to 1989 were retrieved from computer records. The collated patients were randomly selected and their clinical records examined. Those who satisfied the inclusion criteria were contacted and offered a review. After clinical examination, long-cone paralleling periapical radiographs were taken of the selected teeth, which were then assessed by two precalibrated operators to ascertain the pulpal status. Factors that might contribute to loss of pulp vitality and the tooth type were also recorded. The collected data were analysed statistically using the chi-square test and subject to Bonferroni adjustment where indicated. Results: The numbers of preoperatively vital teeth in the CMC and BR groups were 122 and 77, and the mean observation periods were 169 ± 25 (SD) and 187 ± 23 months, respectively. In the CMC group, 19 failed cases (15.6%) were due to an endodontic reason; total number of failures was 34. In the BR group, 25 (32.5%) showed signs of pulpal necrosis; a significant association with maxillary anterior teeth was noted. The survival rates for pulp vitality were 84.4% (CMC) and 70.8% (BR) after 10 years, and 81.2% (SC) and 66.2% (BR) after 15 years. The difference between the two groups was significant. Conclusion: The survival of the vital pulp in teeth restored with a single-unit CMC was significantly higher than those serving as an abutment of a fixed-fixed bridge. Maxillary anterior teeth used as bridge abutments had a higher rate of pulpal necrosis than any other tooth types. © 2005 International Endodontic Journal.
Persistent Identifierhttp://hdl.handle.net/10722/67235
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.authorLai, SCNen_HK
dc.contributor.authorNg, RPYen_HK
dc.date.accessioned2010-09-06T05:53:07Z-
dc.date.available2010-09-06T05:53:07Z-
dc.date.issued2005en_HK
dc.identifier.citationInternational Endodontic Journal, 2005, v. 38 n. 8, p. 521-530en_HK
dc.identifier.issn0143-2885en_HK
dc.identifier.urihttp://hdl.handle.net/10722/67235-
dc.description.abstractAim: To investigate the incidence of and factors associated with pulpal necrosis in vital teeth restored with metal-ceramic crowns (CMCs) or crowned as part of a fixed-fixed bridge. Methodology: Patients who had a CMC or bridge retainer (BR) placed on a tooth with no previous history of root canal treatment from 1981 to 1989 were retrieved from computer records. The collated patients were randomly selected and their clinical records examined. Those who satisfied the inclusion criteria were contacted and offered a review. After clinical examination, long-cone paralleling periapical radiographs were taken of the selected teeth, which were then assessed by two precalibrated operators to ascertain the pulpal status. Factors that might contribute to loss of pulp vitality and the tooth type were also recorded. The collected data were analysed statistically using the chi-square test and subject to Bonferroni adjustment where indicated. Results: The numbers of preoperatively vital teeth in the CMC and BR groups were 122 and 77, and the mean observation periods were 169 ± 25 (SD) and 187 ± 23 months, respectively. In the CMC group, 19 failed cases (15.6%) were due to an endodontic reason; total number of failures was 34. In the BR group, 25 (32.5%) showed signs of pulpal necrosis; a significant association with maxillary anterior teeth was noted. The survival rates for pulp vitality were 84.4% (CMC) and 70.8% (BR) after 10 years, and 81.2% (SC) and 66.2% (BR) after 15 years. The difference between the two groups was significant. Conclusion: The survival of the vital pulp in teeth restored with a single-unit CMC was significantly higher than those serving as an abutment of a fixed-fixed bridge. Maxillary anterior teeth used as bridge abutments had a higher rate of pulpal necrosis than any other tooth types. © 2005 International Endodontic Journal.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.subject.meshCrownsen_HK
dc.subject.meshCuspid - radiographyen_HK
dc.subject.meshDental Abutmentsen_HK
dc.subject.meshDental Pulp - physiology - radiographyen_HK
dc.subject.meshDental Pulp Necrosis - etiology - radiographyen_HK
dc.subject.meshDental Restoration Failureen_HK
dc.subject.meshDenture Retentionen_HK
dc.subject.meshDenture, Partial, Fixeden_HK
dc.subject.meshFemaleen_HK
dc.subject.meshFollow-Up Studiesen_HK
dc.subject.meshHumansen_HK
dc.subject.meshIncisor - radiographyen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMaxilla - radiographyen_HK
dc.subject.meshMetal Ceramic Alloysen_HK
dc.subject.meshRetrospective Studiesen_HK
dc.subject.meshRisk Factorsen_HK
dc.titleFate of vital pulps beneath a metal-ceramic crown or a bridge retaineren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0143-2885&volume=38&spage=521&epage=530&date=2005&atitle=Fate+of+vital+pulps+beneath+a+metal-ceramic+crown+or+a+bridge+retaineren_HK
dc.identifier.emailCheung, GSP:spcheung@hkucc.hku.hken_HK
dc.identifier.authorityCheung, GSP=rp00016en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-2591.2005.00982.xen_HK
dc.identifier.pmid16011770-
dc.identifier.scopuseid_2-s2.0-22544457618en_HK
dc.identifier.hkuros111944en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-22544457618&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume38en_HK
dc.identifier.issue8en_HK
dc.identifier.spage521en_HK
dc.identifier.epage530en_HK
dc.identifier.isiWOS:000230432500005-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheung, GSP=7005809531en_HK
dc.identifier.scopusauthoridLai, SCN=36935849700en_HK
dc.identifier.scopusauthoridNg, RPY=35805157800en_HK
dc.identifier.citeulike254074-

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