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Article: Morphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molars

TitleMorphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molars
Authors
Issue Date2007
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/IEJ
Citation
International Endodontic Journal, 2007, v. 40 n. 4, p. 239-246 How to Cite?
AbstractAim To investigate the apical anatomy of C-shaped canal systems in mandibular second molars by micro-computerized tomography (μCT) and stereomicroscopy. Methodology Forty-four permanent mandibular second molars with a C-shaped root canal systems from a native Chinese population were scanned at 100 μm intervals by μCT at a resolution of 30 × 30 μm. The apical 5 mm of each tooth was reconstructed three-dimensionally for visualization and classification of the canal configuration using Vertucci's criteria. The main and auxiliary (accessory) foramina were examined under a stereomicroscope. Results Type IV and VIII canal configurations were most often found in the apical 5 mm of these canal systems. The prevalence of accessory canals, lateral canals, inter-canal communications and apical delta were 41%, 25%, 27% and 11%, respectively. Approximately 80% of C-shaped canals had 1-3 apical foramina; the prevalence of accessory foramina was about 48%. The mean distance between the main foramen and the anatomic root apex was 0.84 mm, and that between the accessory foramen and the apex was 1.61 mm. The mean (shortest and longest) diameters of major and accessory foramina were 0.19-0.32 mm and 0.07-0.10 mm, with a mean form factor of 0.73 and 0.82, respectively. Conclusion The apical anatomy of C-shaped root canal systems in mandibular second molars is extremely complex with many anatomical variations. © 2007 International Endodontic Journal.
Persistent Identifierhttp://hdl.handle.net/10722/66920
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.authorYang, Jen_HK
dc.contributor.authorFan, Ben_HK
dc.date.accessioned2010-09-06T05:50:27Z-
dc.date.available2010-09-06T05:50:27Z-
dc.date.issued2007en_HK
dc.identifier.citationInternational Endodontic Journal, 2007, v. 40 n. 4, p. 239-246en_HK
dc.identifier.issn0143-2885en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66920-
dc.description.abstractAim To investigate the apical anatomy of C-shaped canal systems in mandibular second molars by micro-computerized tomography (μCT) and stereomicroscopy. Methodology Forty-four permanent mandibular second molars with a C-shaped root canal systems from a native Chinese population were scanned at 100 μm intervals by μCT at a resolution of 30 × 30 μm. The apical 5 mm of each tooth was reconstructed three-dimensionally for visualization and classification of the canal configuration using Vertucci's criteria. The main and auxiliary (accessory) foramina were examined under a stereomicroscope. Results Type IV and VIII canal configurations were most often found in the apical 5 mm of these canal systems. The prevalence of accessory canals, lateral canals, inter-canal communications and apical delta were 41%, 25%, 27% and 11%, respectively. Approximately 80% of C-shaped canals had 1-3 apical foramina; the prevalence of accessory foramina was about 48%. The mean distance between the main foramen and the anatomic root apex was 0.84 mm, and that between the accessory foramen and the apex was 1.61 mm. The mean (shortest and longest) diameters of major and accessory foramina were 0.19-0.32 mm and 0.07-0.10 mm, with a mean form factor of 0.73 and 0.82, respectively. Conclusion The apical anatomy of C-shaped root canal systems in mandibular second molars is extremely complex with many anatomical variations. © 2007 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.meshAsian Continental Ancestry Groupen_HK
dc.subject.meshDental Pulp Cavity - anatomy & histology - radiographyen_HK
dc.subject.meshHumansen_HK
dc.subject.meshImaging, Three-Dimensionalen_HK
dc.subject.meshMandibleen_HK
dc.subject.meshMolar - anatomy & histology - radiographyen_HK
dc.subject.meshTomography, X-Ray Computeden_HK
dc.subject.meshTooth Apex - anatomy & histology - radiographyen_HK
dc.titleMorphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molarsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0143-2885&volume=40&spage=239&epage=246&date=2007&atitle=Morphometric+study+of+the+apical+anatomy+of+C-shaped+root+canal+systems+in+mandibular+second+molarsen_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.1365-2591.2007.01193.xen_HK
dc.identifier.pmid17284270en_HK
dc.identifier.scopuseid_2-s2.0-33947420122en_HK
dc.identifier.hkuros126618en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33947420122&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume40en_HK
dc.identifier.issue4en_HK
dc.identifier.spage239en_HK
dc.identifier.epage246en_HK
dc.identifier.isiWOS:000245052200001-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheung, GSP=7005809531en_HK
dc.identifier.scopusauthoridYang, J=10540515100en_HK
dc.identifier.scopusauthoridFan, B=7102879328en_HK
dc.identifier.citeulike1183008-

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