Dentine thickness in maxillary fused molars depends on the fusion type: An ex vivo micro‐computed tomography study
Aim The present study aimed to determine and compare the dentine thickness around the root canals of maxillary molars with fusion using micro‐computed tomography (micro‐CT). Methodology A total of 120 fused maxillary molars having more than a single canal with distinct canal orifices near the cement...
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| Veröffentlicht in: | International endodontic journal 2023-05, Vol.56 (5), p.637-646 |
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| creator | Keskin, Cangül Toplu, Defne Keleş, Ali |
| description | Aim
The present study aimed to determine and compare the dentine thickness around the root canals of maxillary molars with fusion using micro‐computed tomography (micro‐CT).
Methodology
A total of 120 fused maxillary molars having more than a single canal with distinct canal orifices near the cementoenamel junction were selected from a pool of extracted maxillary molars, which were scanned on a micro‐CT device (SkyScan 1172, Bruker‐microCT). The minimum dentine thickness around the root canals in furcal direction was measured using CTAn software (v.1.18.8 Bruker‐microCT) at each millimetre. The specimens were grouped according to their fusion type, and dentine thickness around the canals was compared. The data were statistically analysed using anova and post hoc Tukey–Kramer tests following an assessment of the normality of their distribution with the Kolmogorov–Smirnov test (p < .05).
Results
Dentine thickness showed a statistically significant decrease at 2 mm apical to the orifice level irrespective of fusion type. The minimum dentine thickness values were detected around the second mesiobuccal canal as 0.30 mm at 6 mm below orifice. Dentine thickness around the mesiobuccal canal was significantly greater in fusion type 1 than those of types 2 and 3 (p |
| doi_str_mv | 10.1111/iej.13891 |
| format | Article |
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The present study aimed to determine and compare the dentine thickness around the root canals of maxillary molars with fusion using micro‐computed tomography (micro‐CT).
Methodology
A total of 120 fused maxillary molars having more than a single canal with distinct canal orifices near the cementoenamel junction were selected from a pool of extracted maxillary molars, which were scanned on a micro‐CT device (SkyScan 1172, Bruker‐microCT). The minimum dentine thickness around the root canals in furcal direction was measured using CTAn software (v.1.18.8 Bruker‐microCT) at each millimetre. The specimens were grouped according to their fusion type, and dentine thickness around the canals was compared. The data were statistically analysed using anova and post hoc Tukey–Kramer tests following an assessment of the normality of their distribution with the Kolmogorov–Smirnov test (p < .05).
Results
Dentine thickness showed a statistically significant decrease at 2 mm apical to the orifice level irrespective of fusion type. The minimum dentine thickness values were detected around the second mesiobuccal canal as 0.30 mm at 6 mm below orifice. Dentine thickness around the mesiobuccal canal was significantly greater in fusion type 1 than those of types 2 and 3 (p < .05), while those of distobuccal and palatal canals were significantly thinner in type 3 fusion compared with type 1 or 6 (pDentine thickness showed a statistically significant decrease at 2 mm apical to the orifice level irrespective of fusion type. The minimum dentine thickness values were detected around the second mesiobuccal canal as 0.30 mm at 6 mm below orifice. Dentine thickness around the mesiobuccal canal was significantly greater in fusion type 1 than those of types 2 and 3 (
Conclusion
Minimum dentine thickness values at the danger zone of distobuccal and palatal canals change according to the fusion type in fused maxillary second molars.</description><identifier>ISSN: 0143-2885</identifier><identifier>EISSN: 1365-2591</identifier><identifier>DOI: 10.1111/iej.13891</identifier><identifier>PMID: 36637890</identifier><language>eng</language><publisher>England: Wiley Subscription Services, Inc</publisher><subject>Computed tomography ; danger zone ; Dental Pulp Cavity - diagnostic imaging ; Dentin - diagnostic imaging ; dentine thickness ; Endodontics ; fusion ; Maxilla ; Maxilla - diagnostic imaging ; microtomography ; Molar - diagnostic imaging ; Molars ; root canal anatomy ; Root canals ; Statistical analysis ; Teeth ; Tomography ; Tooth Root ; X-Ray Microtomography</subject><ispartof>International endodontic journal, 2023-05, Vol.56 (5), p.637-646</ispartof><rights>2023 British Endodontic Society. Published by John Wiley & Sons Ltd</rights><rights>2023 British Endodontic Society. Published by John Wiley & Sons Ltd.</rights><rights>Copyright © 2023 International Endodontic Journal. Published by John Wiley & Sons Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c3131-ce0e7ae432a805a188b147ffe298cf528267fa021006a7fbe29d943ccbe8e4183</cites><orcidid>0000-0001-8990-4847 ; 0000-0003-2835-767X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fiej.13891$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fiej.13891$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36637890$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Keskin, Cangül</creatorcontrib><creatorcontrib>Toplu, Defne</creatorcontrib><creatorcontrib>Keleş, Ali</creatorcontrib><title>Dentine thickness in maxillary fused molars depends on the fusion type: An ex vivo micro‐computed tomography study</title><title>International endodontic journal</title><addtitle>Int Endod J</addtitle><description>Aim
The present study aimed to determine and compare the dentine thickness around the root canals of maxillary molars with fusion using micro‐computed tomography (micro‐CT).
Methodology
A total of 120 fused maxillary molars having more than a single canal with distinct canal orifices near the cementoenamel junction were selected from a pool of extracted maxillary molars, which were scanned on a micro‐CT device (SkyScan 1172, Bruker‐microCT). The minimum dentine thickness around the root canals in furcal direction was measured using CTAn software (v.1.18.8 Bruker‐microCT) at each millimetre. The specimens were grouped according to their fusion type, and dentine thickness around the canals was compared. The data were statistically analysed using anova and post hoc Tukey–Kramer tests following an assessment of the normality of their distribution with the Kolmogorov–Smirnov test (p < .05).
Results
Dentine thickness showed a statistically significant decrease at 2 mm apical to the orifice level irrespective of fusion type. The minimum dentine thickness values were detected around the second mesiobuccal canal as 0.30 mm at 6 mm below orifice. Dentine thickness around the mesiobuccal canal was significantly greater in fusion type 1 than those of types 2 and 3 (p < .05), while those of distobuccal and palatal canals were significantly thinner in type 3 fusion compared with type 1 or 6 (pDentine thickness showed a statistically significant decrease at 2 mm apical to the orifice level irrespective of fusion type. The minimum dentine thickness values were detected around the second mesiobuccal canal as 0.30 mm at 6 mm below orifice. Dentine thickness around the mesiobuccal canal was significantly greater in fusion type 1 than those of types 2 and 3 (
Conclusion
Minimum dentine thickness values at the danger zone of distobuccal and palatal canals change according to the fusion type in fused maxillary second molars.</description><subject>Computed tomography</subject><subject>danger zone</subject><subject>Dental Pulp Cavity - diagnostic imaging</subject><subject>Dentin - diagnostic imaging</subject><subject>dentine thickness</subject><subject>Endodontics</subject><subject>fusion</subject><subject>Maxilla</subject><subject>Maxilla - diagnostic imaging</subject><subject>microtomography</subject><subject>Molar - diagnostic imaging</subject><subject>Molars</subject><subject>root canal anatomy</subject><subject>Root canals</subject><subject>Statistical analysis</subject><subject>Teeth</subject><subject>Tomography</subject><subject>Tooth Root</subject><subject>X-Ray Microtomography</subject><issn>0143-2885</issn><issn>1365-2591</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kcFOxCAQhonR6Lp68AUMiRc9VKGUlnrb6KprTLzouaF0qqxbqKXV7c1H8Bl9ElmrHkzkAgzf_MzMj9AeJcfUrxMN82PKRErX0IiymAchT-k6GhEasSAUgm-hbefmhBBOGN1EWyyOWSJSMkLtOZhWG8Dto1ZPBpzD2uBKLvViIZsel52DAlfWXxwuoAZTOGyNx2H1plfHvoZTPDEYlvhFv1hcadXYj7d3Zau6a316ayv70Mj6sceu7Yp-B22UcuFg93sfo_uL6d3ZVXBzezk7m9wEilFGAwUEEgkRC6UgXFIhcholZQlhKlTJQxHGSSlJSAmJZVLmPl6kEVMqBwERFWyMDgfdurHPHbg2q7RT4DszYDuXhUnMk4RHceTRgz_o3HaN8dV5Ko0Z9Z9wTx0NlG_QuQbKrG505eeUUZKtrMi8FdmXFZ7d_1bs8gqKX_Jn9h44GYBXvYD-f6VsNr0eJD8B2JOUjw</recordid><startdate>202305</startdate><enddate>202305</enddate><creator>Keskin, Cangül</creator><creator>Toplu, Defne</creator><creator>Keleş, Ali</creator><general>Wiley Subscription Services, 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>7QP</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-8990-4847</orcidid><orcidid>https://orcid.org/0000-0003-2835-767X</orcidid></search><sort><creationdate>202305</creationdate><title>Dentine thickness in maxillary fused molars depends on the fusion type: An ex vivo micro‐computed tomography study</title><author>Keskin, Cangül ; Toplu, Defne ; Keleş, Ali</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3131-ce0e7ae432a805a188b147ffe298cf528267fa021006a7fbe29d943ccbe8e4183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Computed tomography</topic><topic>danger zone</topic><topic>Dental Pulp Cavity - diagnostic imaging</topic><topic>Dentin - diagnostic imaging</topic><topic>dentine thickness</topic><topic>Endodontics</topic><topic>fusion</topic><topic>Maxilla</topic><topic>Maxilla - diagnostic imaging</topic><topic>microtomography</topic><topic>Molar - diagnostic imaging</topic><topic>Molars</topic><topic>root canal anatomy</topic><topic>Root canals</topic><topic>Statistical analysis</topic><topic>Teeth</topic><topic>Tomography</topic><topic>Tooth Root</topic><topic>X-Ray Microtomography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Keskin, Cangül</creatorcontrib><creatorcontrib>Toplu, Defne</creatorcontrib><creatorcontrib>Keleş, Ali</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>International endodontic journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Keskin, Cangül</au><au>Toplu, Defne</au><au>Keleş, Ali</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dentine thickness in maxillary fused molars depends on the fusion type: An ex vivo micro‐computed tomography study</atitle><jtitle>International endodontic journal</jtitle><addtitle>Int Endod J</addtitle><date>2023-05</date><risdate>2023</risdate><volume>56</volume><issue>5</issue><spage>637</spage><epage>646</epage><pages>637-646</pages><issn>0143-2885</issn><eissn>1365-2591</eissn><abstract>Aim
The present study aimed to determine and compare the dentine thickness around the root canals of maxillary molars with fusion using micro‐computed tomography (micro‐CT).
Methodology
A total of 120 fused maxillary molars having more than a single canal with distinct canal orifices near the cementoenamel junction were selected from a pool of extracted maxillary molars, which were scanned on a micro‐CT device (SkyScan 1172, Bruker‐microCT). The minimum dentine thickness around the root canals in furcal direction was measured using CTAn software (v.1.18.8 Bruker‐microCT) at each millimetre. The specimens were grouped according to their fusion type, and dentine thickness around the canals was compared. The data were statistically analysed using anova and post hoc Tukey–Kramer tests following an assessment of the normality of their distribution with the Kolmogorov–Smirnov test (p < .05).
Results
Dentine thickness showed a statistically significant decrease at 2 mm apical to the orifice level irrespective of fusion type. The minimum dentine thickness values were detected around the second mesiobuccal canal as 0.30 mm at 6 mm below orifice. Dentine thickness around the mesiobuccal canal was significantly greater in fusion type 1 than those of types 2 and 3 (p < .05), while those of distobuccal and palatal canals were significantly thinner in type 3 fusion compared with type 1 or 6 (pDentine thickness showed a statistically significant decrease at 2 mm apical to the orifice level irrespective of fusion type. The minimum dentine thickness values were detected around the second mesiobuccal canal as 0.30 mm at 6 mm below orifice. Dentine thickness around the mesiobuccal canal was significantly greater in fusion type 1 than those of types 2 and 3 (
Conclusion
Minimum dentine thickness values at the danger zone of distobuccal and palatal canals change according to the fusion type in fused maxillary second molars.</abstract><cop>England</cop><pub>Wiley Subscription Services, Inc</pub><pmid>36637890</pmid><doi>10.1111/iej.13891</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-8990-4847</orcidid><orcidid>https://orcid.org/0000-0003-2835-767X</orcidid></addata></record> |
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| identifier | ISSN: 0143-2885 |
| ispartof | International endodontic journal, 2023-05, Vol.56 (5), p.637-646 |
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| language | eng |
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| source | MEDLINE; Wiley Journals |
| subjects | Computed tomography danger zone Dental Pulp Cavity - diagnostic imaging Dentin - diagnostic imaging dentine thickness Endodontics fusion Maxilla Maxilla - diagnostic imaging microtomography Molar - diagnostic imaging Molars root canal anatomy Root canals Statistical analysis Teeth Tomography Tooth Root X-Ray Microtomography |
| title | Dentine thickness in maxillary fused molars depends on the fusion type: An ex vivo micro‐computed tomography study |
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