Observation of maxillary incisive canal using dry skulls between Hellman’s dental age IA and IIIC
The maxillary incisive canals were observed in childhood from infancy to school-aged children to clarify their development. Cone-beam computed tomography was performed to investigate 44 dry child skulls. Two-dimensional images of various planes in the maxillary incisive canal were reconstructed on a...
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| Veröffentlicht in: | Okajimas Folia Anatomica Japonica 2015, Vol.92(2), pp.37-42 |
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| container_title | Okajimas Folia Anatomica Japonica |
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| creator | NAITOH, Munetaka ARIKAWA, Tomoko NISHIYAMA, Wataru GOTOH, Kenichi NAWA, Hiroyuki FUKUTA, Osamu ARIJI, Eiichiro |
| description | The maxillary incisive canals were observed in childhood from infancy to school-aged children to clarify their development. Cone-beam computed tomography was performed to investigate 44 dry child skulls. Two-dimensional images of various planes in the maxillary incisive canal were reconstructed on a computer using 3-dimensional visualization and measurement software. Then, antero-posterior angulation, and antero-posterior and lateral axes of the maxillary incisive canal were measured at the inferior and middle levels. The mean difference of angulation between the inferior and middle levels was 2.3 degrees in IIC, and 11.1 degrees in IIIC. The mean ratio of the lateral axis to antero-posterior axis at the middle level was 2.54 in IIC, and 1.93 in IIIC. In conclusion, it was antero-posteriorly straight from IA to IIC, and, after IIIA, it curved at the middle level. The cross-sectional shape in IIC was depressed with a larger lateral axis. |
| doi_str_mv | 10.2535/ofaj.92.37 |
| format | Article |
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Cone-beam computed tomography was performed to investigate 44 dry child skulls. Two-dimensional images of various planes in the maxillary incisive canal were reconstructed on a computer using 3-dimensional visualization and measurement software. Then, antero-posterior angulation, and antero-posterior and lateral axes of the maxillary incisive canal were measured at the inferior and middle levels. The mean difference of angulation between the inferior and middle levels was 2.3 degrees in IIC, and 11.1 degrees in IIIC. The mean ratio of the lateral axis to antero-posterior axis at the middle level was 2.54 in IIC, and 1.93 in IIIC. In conclusion, it was antero-posteriorly straight from IA to IIC, and, after IIIA, it curved at the middle level. The cross-sectional shape in IIC was depressed with a larger lateral axis.</description><identifier>ISSN: 0030-154X</identifier><identifier>EISSN: 1881-1736</identifier><identifier>DOI: 10.2535/ofaj.92.37</identifier><identifier>PMID: 26639564</identifier><language>eng</language><publisher>Japan: Editorial Board of Okajimas Folia Anatomica Japonica</publisher><subject>Child ; Child, Preschool ; Cone-Beam Computed Tomography ; Dental age ; Dentition ; Hellman’s classification ; Humans ; Infant ; Maxilla - anatomy & histology ; Maxilla - diagnostic imaging ; Maxillary incisive canal</subject><ispartof>Okajimas Folia Anatomica Japonica, 2015, Vol.92(2), pp.37-42</ispartof><rights>2015 Editorial Board of Okajimas Folia Anatomica Japonica</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c447t-c7280d0cc17ed4e771146cf4c7c8bc7e0871c39c0e97afacde5f1ad88912650c3</citedby><cites>FETCH-LOGICAL-c447t-c7280d0cc17ed4e771146cf4c7c8bc7e0871c39c0e97afacde5f1ad88912650c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26639564$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>NAITOH, Munetaka</creatorcontrib><creatorcontrib>ARIKAWA, Tomoko</creatorcontrib><creatorcontrib>NISHIYAMA, Wataru</creatorcontrib><creatorcontrib>GOTOH, Kenichi</creatorcontrib><creatorcontrib>NAWA, Hiroyuki</creatorcontrib><creatorcontrib>FUKUTA, Osamu</creatorcontrib><creatorcontrib>ARIJI, Eiichiro</creatorcontrib><title>Observation of maxillary incisive canal using dry skulls between Hellman’s dental age IA and IIIC</title><title>Okajimas Folia Anatomica Japonica</title><addtitle>Okajimas Folia Anat. Jpn.</addtitle><description>The maxillary incisive canals were observed in childhood from infancy to school-aged children to clarify their development. Cone-beam computed tomography was performed to investigate 44 dry child skulls. Two-dimensional images of various planes in the maxillary incisive canal were reconstructed on a computer using 3-dimensional visualization and measurement software. Then, antero-posterior angulation, and antero-posterior and lateral axes of the maxillary incisive canal were measured at the inferior and middle levels. The mean difference of angulation between the inferior and middle levels was 2.3 degrees in IIC, and 11.1 degrees in IIIC. The mean ratio of the lateral axis to antero-posterior axis at the middle level was 2.54 in IIC, and 1.93 in IIIC. In conclusion, it was antero-posteriorly straight from IA to IIC, and, after IIIA, it curved at the middle level. The cross-sectional shape in IIC was depressed with a larger lateral axis.</description><subject>Child</subject><subject>Child, Preschool</subject><subject>Cone-Beam Computed Tomography</subject><subject>Dental age</subject><subject>Dentition</subject><subject>Hellman’s classification</subject><subject>Humans</subject><subject>Infant</subject><subject>Maxilla - anatomy & histology</subject><subject>Maxilla - diagnostic imaging</subject><subject>Maxillary incisive canal</subject><issn>0030-154X</issn><issn>1881-1736</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo90M9Kw0AQBvBFFFtqLz6A7FlI3c1ussnBQylqA4VeFLyFzWRSt242JZv65-Zr-Ho-iSnVnAZmfnwwHyGXnM3CSEQ3TaW3szScCXVCxjxJeMCViE_JmDHBAh7J5xGZem8KxkKZyIin52QUxrFIo1iOCawLj-2b7kzjaFPRWn8Ya3X7SY0D480bUtBOW7r3xm1o2R_8695aTwvs3hEdXaK1tXY_X9-elui63uoN0mxOtStplmWLC3JWaetx-jcn5On-7nGxDFbrh2wxXwUgpeoCUGHCSgbAFZYSleJcxlBJUJAUoJAlioNIgWGqdKWhxKjiukySlIdxxEBMyPUxF9rG-xarfNeauv8l5yw_lJUfysrTMBeqx1dHvNsXNZYD_a-mB7dHsPVd_9AAdNsZsDhkhcfAYQ8vus3RiV_Apn3x</recordid><startdate>2015</startdate><enddate>2015</enddate><creator>NAITOH, Munetaka</creator><creator>ARIKAWA, Tomoko</creator><creator>NISHIYAMA, Wataru</creator><creator>GOTOH, Kenichi</creator><creator>NAWA, Hiroyuki</creator><creator>FUKUTA, Osamu</creator><creator>ARIJI, Eiichiro</creator><general>Editorial Board of Okajimas Folia Anatomica Japonica</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2015</creationdate><title>Observation of maxillary incisive canal using dry skulls between Hellman’s dental age IA and IIIC</title><author>NAITOH, Munetaka ; ARIKAWA, Tomoko ; NISHIYAMA, Wataru ; GOTOH, Kenichi ; NAWA, Hiroyuki ; FUKUTA, Osamu ; ARIJI, Eiichiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-c7280d0cc17ed4e771146cf4c7c8bc7e0871c39c0e97afacde5f1ad88912650c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Child</topic><topic>Child, Preschool</topic><topic>Cone-Beam Computed Tomography</topic><topic>Dental age</topic><topic>Dentition</topic><topic>Hellman’s classification</topic><topic>Humans</topic><topic>Infant</topic><topic>Maxilla - anatomy & histology</topic><topic>Maxilla - diagnostic imaging</topic><topic>Maxillary incisive canal</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>NAITOH, Munetaka</creatorcontrib><creatorcontrib>ARIKAWA, Tomoko</creatorcontrib><creatorcontrib>NISHIYAMA, Wataru</creatorcontrib><creatorcontrib>GOTOH, Kenichi</creatorcontrib><creatorcontrib>NAWA, Hiroyuki</creatorcontrib><creatorcontrib>FUKUTA, Osamu</creatorcontrib><creatorcontrib>ARIJI, Eiichiro</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Okajimas Folia Anatomica Japonica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>NAITOH, Munetaka</au><au>ARIKAWA, Tomoko</au><au>NISHIYAMA, Wataru</au><au>GOTOH, Kenichi</au><au>NAWA, Hiroyuki</au><au>FUKUTA, Osamu</au><au>ARIJI, Eiichiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of maxillary incisive canal using dry skulls between Hellman’s dental age IA and IIIC</atitle><jtitle>Okajimas Folia Anatomica Japonica</jtitle><addtitle>Okajimas Folia Anat. Jpn.</addtitle><date>2015</date><risdate>2015</risdate><volume>92</volume><issue>2</issue><spage>37</spage><epage>42</epage><pages>37-42</pages><issn>0030-154X</issn><eissn>1881-1736</eissn><abstract>The maxillary incisive canals were observed in childhood from infancy to school-aged children to clarify their development. Cone-beam computed tomography was performed to investigate 44 dry child skulls. Two-dimensional images of various planes in the maxillary incisive canal were reconstructed on a computer using 3-dimensional visualization and measurement software. Then, antero-posterior angulation, and antero-posterior and lateral axes of the maxillary incisive canal were measured at the inferior and middle levels. The mean difference of angulation between the inferior and middle levels was 2.3 degrees in IIC, and 11.1 degrees in IIIC. The mean ratio of the lateral axis to antero-posterior axis at the middle level was 2.54 in IIC, and 1.93 in IIIC. In conclusion, it was antero-posteriorly straight from IA to IIC, and, after IIIA, it curved at the middle level. The cross-sectional shape in IIC was depressed with a larger lateral axis.</abstract><cop>Japan</cop><pub>Editorial Board of Okajimas Folia Anatomica Japonica</pub><pmid>26639564</pmid><doi>10.2535/ofaj.92.37</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Okajimas Folia Anatomica Japonica, 2015, Vol.92(2), pp.37-42 |
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| source | J-STAGE Free; MEDLINE; EZB-FREE-00999 freely available EZB journals |
| subjects | Child Child, Preschool Cone-Beam Computed Tomography Dental age Dentition Hellman’s classification Humans Infant Maxilla - anatomy & histology Maxilla - diagnostic imaging Maxillary incisive canal |
| title | Observation of maxillary incisive canal using dry skulls between Hellman’s dental age IA and IIIC |
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