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- Publisher Website: 10.1111/j.1365-2591.2007.01193.x
- Scopus: eid_2-s2.0-33947420122
- PMID: 17284270
- WOS: WOS:000245052200001
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Article: Morphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molars
Title | Morphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molars |
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Authors | |
Keywords | C-shaped canal Dental anatomy Microcomputerized tomography Stereomicroscopy Tooth morphology |
Issue Date | 2007 |
Publisher | Blackwell 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? |
Abstract | Aim 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 Identifier | http://hdl.handle.net/10722/66920 |
ISSN | 2023 Impact Factor: 5.4 2023 SCImago Journal Rankings: 2.155 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Cheung, GSP | en_HK |
dc.contributor.author | Yang, J | en_HK |
dc.contributor.author | Fan, B | en_HK |
dc.date.accessioned | 2010-09-06T05:50:27Z | - |
dc.date.available | 2010-09-06T05:50:27Z | - |
dc.date.issued | 2007 | en_HK |
dc.identifier.citation | International Endodontic Journal, 2007, v. 40 n. 4, p. 239-246 | en_HK |
dc.identifier.issn | 0143-2885 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/66920 | - |
dc.description.abstract | Aim 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.language | eng | en_HK |
dc.publisher | Blackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/IEJ | en_HK |
dc.relation.ispartof | International Endodontic Journal | en_HK |
dc.rights | International Endodontic Journal. Copyright © Blackwell Publishing Ltd. | en_HK |
dc.subject | C-shaped canal | - |
dc.subject | Dental anatomy | - |
dc.subject | Microcomputerized tomography | - |
dc.subject | Stereomicroscopy | - |
dc.subject | Tooth morphology | - |
dc.subject.mesh | Asian Continental Ancestry Group | en_HK |
dc.subject.mesh | Dental Pulp Cavity - anatomy & histology - radiography | en_HK |
dc.subject.mesh | Humans | en_HK |
dc.subject.mesh | Imaging, Three-Dimensional | en_HK |
dc.subject.mesh | Mandible | en_HK |
dc.subject.mesh | Molar - anatomy & histology - radiography | en_HK |
dc.subject.mesh | Tomography, X-Ray Computed | en_HK |
dc.subject.mesh | Tooth Apex - anatomy & histology - radiography | en_HK |
dc.title | Morphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molars | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+molars | en_HK |
dc.identifier.email | Cheung, GSP:spcheung@hkucc.hku.hk | en_HK |
dc.identifier.authority | Cheung, GSP=rp00016 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1111/j.1365-2591.2007.01193.x | en_HK |
dc.identifier.pmid | 17284270 | en_HK |
dc.identifier.scopus | eid_2-s2.0-33947420122 | en_HK |
dc.identifier.hkuros | 126618 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33947420122&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 40 | en_HK |
dc.identifier.issue | 4 | en_HK |
dc.identifier.spage | 239 | en_HK |
dc.identifier.epage | 246 | en_HK |
dc.identifier.isi | WOS:000245052200001 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Cheung, GSP=7005809531 | en_HK |
dc.identifier.scopusauthorid | Yang, J=10540515100 | en_HK |
dc.identifier.scopusauthorid | Fan, B=7102879328 | en_HK |
dc.identifier.citeulike | 1183008 | - |
dc.identifier.issnl | 0143-2885 | - |