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Article: C-shaped canal system in mandibular second molars part III: the morphology of the pulp chamber floor

TitleC-shaped canal system in mandibular second molars part III: the morphology of the pulp chamber floor
Authors
Issue Date2006
PublisherElsevier Inc. The Journal's web site is located at http://www.jendodon.com
Citation
Journal of Endodontics, 2006, v. 32 n. 12, p. 1155-1159 How to Cite?
AbstractThe purpose of this study was to investigate the morphology of pulp chamber floors in mandibular second molars with a C-shaped canal system. Forty-four extracted mandibular second molars with C-shaped roots were collected from a native Chinese population. After the teeth were scanned by the micro-computed tomography (μCT), the pulp chamber floors were reconstructed three-dimensionally using three-dimensional software. The reconstructed images were classified into four types based on the shape of the pulp chamber floor and the location of the dentin fusion between the peninsular-like floor and the pulp chamber wall. Of the 44 reconstructed pulpal floors, 38 (86.37%) were C-shaped (peninsula-like floor) in which 8 (18.18%) had a continuous C-shaped orifice (type I); 16 (36.37%) had a dentin fusion between the peninsula-like floor and buccal pulp chamber wall, forming one or two mesial orifice(s) and a distal orifice (type II); and 14 (31.82%) had a dentin fusion between the peninsula-like floor and the mesial pulp chamber wall, forming a large mesiobuccal-distal (MB-D) orifice and a small mesiolingual orifice (type III). Six (13.63%) teeth did not have a C-shaped floor configuration (type IV). The number and configuration of the canals at different levels below the orifices were analyzed. The results suggested that most teeth in this study with C-shaped roots also have a C-shaped pulpal floor and that a new classification of pulpal floor anatomy would be helpful in locating the C-shaped canals. © 2006 American Association of Endodontists.
Persistent Identifierhttp://hdl.handle.net/10722/66460
ISSN
2015 Impact Factor: 2.904
2015 SCImago Journal Rankings: 1.681
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMin, Yen_HK
dc.contributor.authorFan, Ben_HK
dc.contributor.authorCheung, GSPen_HK
dc.contributor.authorGutmann, JLen_HK
dc.contributor.authorFan, Men_HK
dc.date.accessioned2010-09-06T05:46:33Z-
dc.date.available2010-09-06T05:46:33Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal of Endodontics, 2006, v. 32 n. 12, p. 1155-1159en_HK
dc.identifier.issn0099-2399en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66460-
dc.description.abstractThe purpose of this study was to investigate the morphology of pulp chamber floors in mandibular second molars with a C-shaped canal system. Forty-four extracted mandibular second molars with C-shaped roots were collected from a native Chinese population. After the teeth were scanned by the micro-computed tomography (μCT), the pulp chamber floors were reconstructed three-dimensionally using three-dimensional software. The reconstructed images were classified into four types based on the shape of the pulp chamber floor and the location of the dentin fusion between the peninsular-like floor and the pulp chamber wall. Of the 44 reconstructed pulpal floors, 38 (86.37%) were C-shaped (peninsula-like floor) in which 8 (18.18%) had a continuous C-shaped orifice (type I); 16 (36.37%) had a dentin fusion between the peninsula-like floor and buccal pulp chamber wall, forming one or two mesial orifice(s) and a distal orifice (type II); and 14 (31.82%) had a dentin fusion between the peninsula-like floor and the mesial pulp chamber wall, forming a large mesiobuccal-distal (MB-D) orifice and a small mesiolingual orifice (type III). Six (13.63%) teeth did not have a C-shaped floor configuration (type IV). The number and configuration of the canals at different levels below the orifices were analyzed. The results suggested that most teeth in this study with C-shaped roots also have a C-shaped pulpal floor and that a new classification of pulpal floor anatomy would be helpful in locating the C-shaped canals. © 2006 American Association of Endodontists.en_HK
dc.languageengen_HK
dc.publisherElsevier Inc. The Journal's web site is located at http://www.jendodon.comen_HK
dc.relation.ispartofJournal of Endodonticsen_HK
dc.rightsThe Journal of Endodontics. Copyright © Lippincott Williams & Wilkins.en_HK
dc.subject.meshAnatomy, Cross-Sectionalen_HK
dc.subject.meshAsian Continental Ancestry Groupen_HK
dc.subject.meshChinaen_HK
dc.subject.meshClassificationen_HK
dc.subject.meshComputer Graphicsen_HK
dc.subject.meshDental Pulp Cavity - anatomy & histologyen_HK
dc.subject.meshDentinen_HK
dc.subject.meshHumansen_HK
dc.subject.meshImaging, Three-Dimensionalen_HK
dc.subject.meshMandibleen_HK
dc.subject.meshMolar - anatomy & histologyen_HK
dc.subject.meshOdontometryen_HK
dc.subject.meshTomography, X-Ray Computed - methodsen_HK
dc.subject.meshTooth Root - anatomy & histologyen_HK
dc.titleC-shaped canal system in mandibular second molars part III: the morphology of the pulp chamber flooren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2399&volume=32&spage=1155&epage=1159&date=2006&atitle=C-shaped+canal+system+in+mandibular+second+molars+Part+III:+The+morphology+of+the+pulp+chamber+flooren_HK
dc.identifier.emailCheung, GSP:spcheung@hkucc.hku.hken_HK
dc.identifier.authorityCheung, GSP=rp00016en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.joen.2006.07.004en_HK
dc.identifier.pmid17174671-
dc.identifier.scopuseid_2-s2.0-33845335197en_HK
dc.identifier.hkuros125898en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33845335197&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume32en_HK
dc.identifier.issue12en_HK
dc.identifier.spage1155en_HK
dc.identifier.epage1159en_HK
dc.identifier.isiWOS:000242954600006-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridMin, Y=7202198565en_HK
dc.identifier.scopusauthoridFan, B=7102879328en_HK
dc.identifier.scopusauthoridCheung, GSP=7005809531en_HK
dc.identifier.scopusauthoridGutmann, JL=7103288888en_HK
dc.identifier.scopusauthoridFan, M=7201970773en_HK

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