Proximity of the Mandibular Canal to Teeth and Cortical Bone
Abstract Introduction The proximity of the inferior alveolar canal to the mandibular molar roots may pose a risk of injury during various dental surgeries. The purpose of this study was to evaluate age-related and gender-related changes by using cone-beam computed tomography images between the roots...
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| Veröffentlicht in: | Journal of endodontics 2016-02, Vol.42 (2), p.221-224 |
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| container_title | Journal of endodontics |
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| creator | Kawashima, Yusuke, DDS Sakai, Osamu, MD, PhD Shosho, Dhurata, MD, MA Kaneda, Takashi, DDS, PhD Gohel, Anita, BDS, PhD |
| description | Abstract Introduction The proximity of the inferior alveolar canal to the mandibular molar roots may pose a risk of injury during various dental surgeries. The purpose of this study was to evaluate age-related and gender-related changes by using cone-beam computed tomography images between the roots of the second molars, mandibular cortex, and the inferior alveolar canal. Methods One hundred fifty-five patients (68 men, 87 women), 20 years and older, who had previous cone-beam computed tomography scans were enrolled in this study. The patients were subcategorized by gender and age (group I, 40 years). Distance between the mandibular canal (MC) and the second molar distal root apex as well as the 3 mandibular cortical regions (inferior cortex, buccal cortex, and lingual cortex) were measured. Results In men, the second molar root apex to the MC distance was significantly shorter in group I than in group III ( P |
| doi_str_mv | 10.1016/j.joen.2015.11.009 |
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The purpose of this study was to evaluate age-related and gender-related changes by using cone-beam computed tomography images between the roots of the second molars, mandibular cortex, and the inferior alveolar canal. Methods One hundred fifty-five patients (68 men, 87 women), 20 years and older, who had previous cone-beam computed tomography scans were enrolled in this study. The patients were subcategorized by gender and age (group I, <21 years; group II, 21–40 years; and group III, >40 years). Distance between the mandibular canal (MC) and the second molar distal root apex as well as the 3 mandibular cortical regions (inferior cortex, buccal cortex, and lingual cortex) were measured. Results In men, the second molar root apex to the MC distance was significantly shorter in group I than in group III ( P < .01). In women, the second molar root apex to the MC distance was significantly shorter in group I than in group II and group III ( P < .05). In both men and women, the buccal cortex of the mandible to the MC distance was significantly shorter on the right side compared with the left side ( P < .01). Conclusions Our study shows that age, gender, and region have an influence on the location of the MC in the second molar area.</description><identifier>ISSN: 0099-2399</identifier><identifier>EISSN: 1878-3554</identifier><identifier>DOI: 10.1016/j.joen.2015.11.009</identifier><identifier>PMID: 26725176</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject><![CDATA[Adult ; Age Factors ; Cone-Beam Computed Tomography - methods ; Cortical Bone - anatomy & histology ; Cortical Bone - diagnostic imaging ; Dental Pulp Cavity - diagnostic imaging ; Dentistry ; Endocrinology & Metabolism ; Female ; Humans ; Inferior alveolar nerve ; Male ; Mandible - anatomy & histology ; Mandible - diagnostic imaging ; Mandible - innervation ; mandibular canal ; mandibular cortex ; Mandibular Nerve - anatomy & histology ; Mandibular Nerve - diagnostic imaging ; mandibular second molar ; Middle Aged ; Molar - anatomy & histology ; Molar - diagnostic imaging ; Odontometry ; Sex Factors ; Tooth Apex - anatomy & histology ; Tooth Apex - diagnostic imaging ; Tooth Apex - innervation ; Tooth Root - anatomy & histology ; Tooth Root - diagnostic imaging ; Young Adult]]></subject><ispartof>Journal of endodontics, 2016-02, Vol.42 (2), p.221-224</ispartof><rights>American Association of Endodontists</rights><rights>2016 American Association of Endodontists</rights><rights>Copyright © 2016 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c547t-f2adc6e2c10dca3445f0ac65e8214b39ae82b00b760f5a8ce2f3f77ed09f61743</citedby><cites>FETCH-LOGICAL-c547t-f2adc6e2c10dca3445f0ac65e8214b39ae82b00b760f5a8ce2f3f77ed09f61743</cites><orcidid>0000-0002-2314-6593 ; 0000-0002-3413-124X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0099239915010067$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26725176$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kawashima, Yusuke, DDS</creatorcontrib><creatorcontrib>Sakai, Osamu, MD, PhD</creatorcontrib><creatorcontrib>Shosho, Dhurata, MD, MA</creatorcontrib><creatorcontrib>Kaneda, Takashi, DDS, PhD</creatorcontrib><creatorcontrib>Gohel, Anita, BDS, PhD</creatorcontrib><title>Proximity of the Mandibular Canal to Teeth and Cortical Bone</title><title>Journal of endodontics</title><addtitle>J Endod</addtitle><description>Abstract Introduction The proximity of the inferior alveolar canal to the mandibular molar roots may pose a risk of injury during various dental surgeries. The purpose of this study was to evaluate age-related and gender-related changes by using cone-beam computed tomography images between the roots of the second molars, mandibular cortex, and the inferior alveolar canal. Methods One hundred fifty-five patients (68 men, 87 women), 20 years and older, who had previous cone-beam computed tomography scans were enrolled in this study. The patients were subcategorized by gender and age (group I, <21 years; group II, 21–40 years; and group III, >40 years). Distance between the mandibular canal (MC) and the second molar distal root apex as well as the 3 mandibular cortical regions (inferior cortex, buccal cortex, and lingual cortex) were measured. Results In men, the second molar root apex to the MC distance was significantly shorter in group I than in group III ( P < .01). In women, the second molar root apex to the MC distance was significantly shorter in group I than in group II and group III ( P < .05). In both men and women, the buccal cortex of the mandible to the MC distance was significantly shorter on the right side compared with the left side ( P < .01). Conclusions Our study shows that age, gender, and region have an influence on the location of the MC in the second molar area.</description><subject>Adult</subject><subject>Age Factors</subject><subject>Cone-Beam Computed Tomography - methods</subject><subject>Cortical Bone - anatomy & histology</subject><subject>Cortical Bone - diagnostic imaging</subject><subject>Dental Pulp Cavity - diagnostic imaging</subject><subject>Dentistry</subject><subject>Endocrinology & Metabolism</subject><subject>Female</subject><subject>Humans</subject><subject>Inferior alveolar nerve</subject><subject>Male</subject><subject>Mandible - anatomy & histology</subject><subject>Mandible - diagnostic imaging</subject><subject>Mandible - innervation</subject><subject>mandibular canal</subject><subject>mandibular cortex</subject><subject>Mandibular Nerve - anatomy & histology</subject><subject>Mandibular Nerve - diagnostic imaging</subject><subject>mandibular second molar</subject><subject>Middle Aged</subject><subject>Molar - anatomy & histology</subject><subject>Molar - diagnostic imaging</subject><subject>Odontometry</subject><subject>Sex Factors</subject><subject>Tooth Apex - anatomy & histology</subject><subject>Tooth Apex - diagnostic imaging</subject><subject>Tooth Apex - innervation</subject><subject>Tooth Root - anatomy & histology</subject><subject>Tooth Root - diagnostic imaging</subject><subject>Young Adult</subject><issn>0099-2399</issn><issn>1878-3554</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUFv1DAQhS0EotvCH-CAcuSSMGPHcSJVSHQFBakIJMrZcpyx6pCNi50g9t_jaAsHDpxszbz3pPcNYy8QKgRsXo_VGGiuOKCsECuA7hHbYavaUkhZP2a7POlKLrrujJ2nNAKgEkI9ZWe8UVyianbs8ksMv_zBL8ciuGK5o-KTmQffr5OJxd7MZiqWUNwSLXdFXhT7EBdv8_QqzPSMPXFmSvT84b1g396_u91_KG8-X3_cv70prazVUjpuBtsQtwiDNaKupQNjG0ktx7oXncmfHqBXDThpWkvcCacUDdC5BlUtLtirU-59DD9WSos--GRpmsxMYU06N0FQrZCblJ-kNoaUIjl9H_3BxKNG0Bs1PeqNmt6oaUSdGWXTy4f8tT_Q8NfyB1MWXJ4ElFv-9BR1sp5mS4OPZBc9BP___Df_2O3k5w3jdzpSGsMaM-jcQyeuQX_d7radDSUgQKPEb8mRkaE</recordid><startdate>20160201</startdate><enddate>20160201</enddate><creator>Kawashima, Yusuke, DDS</creator><creator>Sakai, Osamu, MD, PhD</creator><creator>Shosho, Dhurata, MD, MA</creator><creator>Kaneda, Takashi, DDS, PhD</creator><creator>Gohel, Anita, BDS, PhD</creator><general>Elsevier Inc</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><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-2314-6593</orcidid><orcidid>https://orcid.org/0000-0002-3413-124X</orcidid></search><sort><creationdate>20160201</creationdate><title>Proximity of the Mandibular Canal to Teeth and Cortical Bone</title><author>Kawashima, Yusuke, DDS ; Sakai, Osamu, MD, PhD ; Shosho, Dhurata, MD, MA ; Kaneda, Takashi, DDS, PhD ; Gohel, Anita, BDS, PhD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c547t-f2adc6e2c10dca3445f0ac65e8214b39ae82b00b760f5a8ce2f3f77ed09f61743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Adult</topic><topic>Age Factors</topic><topic>Cone-Beam Computed Tomography - methods</topic><topic>Cortical Bone - anatomy & histology</topic><topic>Cortical Bone - diagnostic imaging</topic><topic>Dental Pulp Cavity - diagnostic imaging</topic><topic>Dentistry</topic><topic>Endocrinology & Metabolism</topic><topic>Female</topic><topic>Humans</topic><topic>Inferior alveolar nerve</topic><topic>Male</topic><topic>Mandible - anatomy & histology</topic><topic>Mandible - diagnostic imaging</topic><topic>Mandible - innervation</topic><topic>mandibular canal</topic><topic>mandibular cortex</topic><topic>Mandibular Nerve - anatomy & histology</topic><topic>Mandibular Nerve - diagnostic imaging</topic><topic>mandibular second molar</topic><topic>Middle Aged</topic><topic>Molar - anatomy & histology</topic><topic>Molar - diagnostic imaging</topic><topic>Odontometry</topic><topic>Sex Factors</topic><topic>Tooth Apex - anatomy & histology</topic><topic>Tooth Apex - diagnostic imaging</topic><topic>Tooth Apex - innervation</topic><topic>Tooth Root - anatomy & histology</topic><topic>Tooth Root - diagnostic imaging</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kawashima, Yusuke, DDS</creatorcontrib><creatorcontrib>Sakai, Osamu, MD, PhD</creatorcontrib><creatorcontrib>Shosho, Dhurata, MD, MA</creatorcontrib><creatorcontrib>Kaneda, Takashi, DDS, PhD</creatorcontrib><creatorcontrib>Gohel, Anita, BDS, PhD</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of endodontics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kawashima, Yusuke, DDS</au><au>Sakai, Osamu, MD, PhD</au><au>Shosho, Dhurata, MD, MA</au><au>Kaneda, Takashi, DDS, PhD</au><au>Gohel, Anita, BDS, PhD</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Proximity of the Mandibular Canal to Teeth and Cortical Bone</atitle><jtitle>Journal of endodontics</jtitle><addtitle>J Endod</addtitle><date>2016-02-01</date><risdate>2016</risdate><volume>42</volume><issue>2</issue><spage>221</spage><epage>224</epage><pages>221-224</pages><issn>0099-2399</issn><eissn>1878-3554</eissn><abstract>Abstract Introduction The proximity of the inferior alveolar canal to the mandibular molar roots may pose a risk of injury during various dental surgeries. The purpose of this study was to evaluate age-related and gender-related changes by using cone-beam computed tomography images between the roots of the second molars, mandibular cortex, and the inferior alveolar canal. Methods One hundred fifty-five patients (68 men, 87 women), 20 years and older, who had previous cone-beam computed tomography scans were enrolled in this study. The patients were subcategorized by gender and age (group I, <21 years; group II, 21–40 years; and group III, >40 years). Distance between the mandibular canal (MC) and the second molar distal root apex as well as the 3 mandibular cortical regions (inferior cortex, buccal cortex, and lingual cortex) were measured. Results In men, the second molar root apex to the MC distance was significantly shorter in group I than in group III ( P < .01). In women, the second molar root apex to the MC distance was significantly shorter in group I than in group II and group III ( P < .05). In both men and women, the buccal cortex of the mandible to the MC distance was significantly shorter on the right side compared with the left side ( P < .01). Conclusions Our study shows that age, gender, and region have an influence on the location of the MC in the second molar area.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>26725176</pmid><doi>10.1016/j.joen.2015.11.009</doi><tpages>4</tpages><orcidid>https://orcid.org/0000-0002-2314-6593</orcidid><orcidid>https://orcid.org/0000-0002-3413-124X</orcidid></addata></record> |
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| subjects | Adult Age Factors Cone-Beam Computed Tomography - methods Cortical Bone - anatomy & histology Cortical Bone - diagnostic imaging Dental Pulp Cavity - diagnostic imaging Dentistry Endocrinology & Metabolism Female Humans Inferior alveolar nerve Male Mandible - anatomy & histology Mandible - diagnostic imaging Mandible - innervation mandibular canal mandibular cortex Mandibular Nerve - anatomy & histology Mandibular Nerve - diagnostic imaging mandibular second molar Middle Aged Molar - anatomy & histology Molar - diagnostic imaging Odontometry Sex Factors Tooth Apex - anatomy & histology Tooth Apex - diagnostic imaging Tooth Apex - innervation Tooth Root - anatomy & histology Tooth Root - diagnostic imaging Young Adult |
| title | Proximity of the Mandibular Canal to Teeth and Cortical Bone |
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