{"id":"https://openalex.org/W7225416636","doi":"https://doi.org/10.2340/aos.v85.47151","title":"Prevalence and morphological types of middle mesial canals in mandibular molars according to the Barros-Costa classification: a CBCT study in a Turkish subpopulation","display_name":"Prevalence and morphological types of middle mesial canals in mandibular molars according to the Barros-Costa classification: a CBCT study in a Turkish subpopulation","publication_year":2026,"publication_date":"2026-11-06","ids":{"openalex":"https://openalex.org/W7225416636","doi":"https://doi.org/10.2340/aos.v85.47151","pmid":"https://pubmed.ncbi.nlm.nih.gov/42989999"},"language":"en","primary_location":{"id":"doi:10.2340/aos.v85.47151","doi":"https://doi.org/10.2340/aos.v85.47151","is_oa":true,"landing_page_url":"https://doi.org/10.2340/aos.v85.47151","pdf_url":"https://medicaljournalssweden.se/actaodontologica/article/download/47151/56070","source":{"id":"https://openalex.org/S42091764","display_name":"Acta Odontologica Scandinavica","issn_l":"0001-6357","issn":["0001-6357","1502-3850"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320449","host_organization_name":"Informa","host_organization_lineage":["https://openalex.org/P4310320449"],"host_organization_lineage_names":["Informa"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Odontologica Scandinavica","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://medicaljournalssweden.se/actaodontologica/article/download/47151/56070","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5046511210","display_name":"G\u00fczide Pelin Sezgin","orcid":"https://orcid.org/0000-0002-1786-1929","observed_orcids":["https://orcid.org/0000-0002-1786-1929"]},"institutions":[{"id":"https://openalex.org/I4210104933","display_name":"Biruni University","ror":"https://ror.org/01nkhmn89","country_code":"TR","type":"education","lineage":["https://openalex.org/I4210104933"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"G\u00fczide Pelin Sezgin","raw_affiliation_strings":["Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey"],"raw_orcid":"https://orcid.org/0000-0002-1786-1929","affiliations":[{"raw_affiliation_string":"Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey","institution_ids":["https://openalex.org/I4210104933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006928415","display_name":"Tuna Kaplan","orcid":"https://orcid.org/0000-0003-0554-4341","observed_orcids":["https://orcid.org/0000-0003-0554-4341"]},"institutions":[{"id":"https://openalex.org/I4210104933","display_name":"Biruni University","ror":"https://ror.org/01nkhmn89","country_code":"TR","type":"education","lineage":["https://openalex.org/I4210104933"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Tuna Kaplan","raw_affiliation_strings":["Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey"],"raw_orcid":"https://orcid.org/0000-0003-0554-4341","affiliations":[{"raw_affiliation_string":"Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey","institution_ids":["https://openalex.org/I4210104933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044141966","display_name":"Sema S\u00f6nmez Kaplan","orcid":"https://orcid.org/0000-0003-2099-4826","observed_orcids":["https://orcid.org/0000-0003-2099-4826"]},"institutions":[{"id":"https://openalex.org/I4210104933","display_name":"Biruni University","ror":"https://ror.org/01nkhmn89","country_code":"TR","type":"education","lineage":["https://openalex.org/I4210104933"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Sema S\u00f6nmez Kaplan","raw_affiliation_strings":["Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey. semak@biruni.edu.tr"],"raw_orcid":"https://orcid.org/0000-0003-2099-4826","affiliations":[{"raw_affiliation_string":"Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey. semak@biruni.edu.tr","institution_ids":["https://openalex.org/I4210104933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073794938","display_name":"Hatice Sa\u011flam","orcid":"https://orcid.org/0000-0002-8905-9345","observed_orcids":["https://orcid.org/0000-0002-8905-9345"]},"institutions":[{"id":"https://openalex.org/I57913696","display_name":"Istanbul Medeniyet University","ror":"https://ror.org/05j1qpr59","country_code":"TR","type":"education","lineage":["https://openalex.org/I57913696"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Hatice Sa\u011flam","raw_affiliation_strings":["Department of Endodontics, Faculty of Dentistry, \u0130stanbul Medeniyet University, Istanbul, Turkey"],"raw_orcid":"https://orcid.org/0000-0002-8905-9345","affiliations":[{"raw_affiliation_string":"Department of Endodontics, Faculty of Dentistry, \u0130stanbul Medeniyet University, Istanbul, Turkey","institution_ids":["https://openalex.org/I57913696"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5114324589","display_name":"Nuri Yeniev","orcid":"https://orcid.org/0009-0009-3758-8374","observed_orcids":["https://orcid.org/0009-0009-3758-8374"]},"institutions":[{"id":"https://openalex.org/I4210104933","display_name":"Biruni University","ror":"https://ror.org/01nkhmn89","country_code":"TR","type":"education","lineage":["https://openalex.org/I4210104933"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Nuri Yeniev","raw_affiliation_strings":["Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey"],"raw_orcid":"https://orcid.org/0009-0009-3758-8374","affiliations":[{"raw_affiliation_string":"Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey","institution_ids":["https://openalex.org/I4210104933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5114324146","display_name":"Metahir U\u011fur Marangoz","orcid":"https://orcid.org/0009-0008-6309-2789","observed_orcids":["https://orcid.org/0009-0008-6309-2789"]},"institutions":[{"id":"https://openalex.org/I4210104933","display_name":"Biruni University","ror":"https://ror.org/01nkhmn89","country_code":"TR","type":"education","lineage":["https://openalex.org/I4210104933"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Metahir U\u011fur Marangoz","raw_affiliation_strings":["Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey"],"raw_orcid":"https://orcid.org/0009-0008-6309-2789","affiliations":[{"raw_affiliation_string":"Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey","institution_ids":["https://openalex.org/I4210104933"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5121623793","display_name":"Ba\u015fak Mina \u00c7elik Akda\u015f","orcid":"https://orcid.org/0009-0002-3248-9165","observed_orcids":["https://orcid.org/0009-0002-3248-9165"]},"institutions":[{"id":"https://openalex.org/I4210104933","display_name":"Biruni University","ror":"https://ror.org/01nkhmn89","country_code":"TR","type":"education","lineage":["https://openalex.org/I4210104933"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Ba\u015fak Mina \u00c7elik Akda\u015f","raw_affiliation_strings":["Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey"],"raw_orcid":"https://orcid.org/0009-0002-3248-9165","affiliations":[{"raw_affiliation_string":"Department of Endodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey","institution_ids":["https://openalex.org/I4210104933"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"85","issue":null,"first_page":"752","last_page":"761"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10536","display_name":"Endodontics and Root Canal Treatments","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10536","display_name":"Endodontics and Root Canal Treatments","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11363","display_name":"Dental Radiography and Imaging","score":0.0006000000284984708,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10113","display_name":"Dental materials and restorations","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/middle-mesial-canal","display_name":"middle mesial canal","score":0.9430000185966492},{"id":"https://openalex.org/keywords/mandibular-molars","display_name":"mandibular molars","score":0.9909999966621399},{"id":"https://openalex.org/keywords/root-canal-morphology","display_name":"root canal anatomy","score":0.7770000100135803},{"id":"https://openalex.org/keywords/mesiolingual-canal","display_name":"mesiolingual canal","score":0.7789999842643738},{"id":"https://openalex.org/keywords/mesiobuccal-canal","display_name":"mesiobuccal canal","score":0.9950000047683716},{"id":"https://openalex.org/keywords/mandibular-first-molar","display_name":"mandibular first molar","score":0.843999981880188},{"id":"https://openalex.org/keywords/mandibular-second-molar","display_name":"mandibular second molar","score":0.9520000219345093},{"id":"https://openalex.org/keywords/prevalence","display_name":"prevalence","score":0.47999998927116394},{"id":"https://openalex.org/keywords/turkish-population","display_name":"Turkish population","score":0.5669999718666077},{"id":"https://openalex.org/keywords/root-canal-treatment","display_name":"endodontic treatment","score":0.8230000138282776}],"concepts":[{"id":"https://openalex.org/C202271784","wikidata":"https://www.wikidata.org/wiki/Q189218","display_name":"Molar","level":2,"score":0.802299976348877},{"id":"https://openalex.org/C29694066","wikidata":"https://www.wikidata.org/wiki/Q118301","display_name":"Orthodontics","level":1,"score":0.5593000054359436},{"id":"https://openalex.org/C2778817970","wikidata":"https://www.wikidata.org/wiki/Q7855390","display_name":"Turkish population","level":4,"score":0.5390999913215637},{"id":"https://openalex.org/C156957248","wikidata":"https://www.wikidata.org/wiki/Q1862216","display_name":"Odds ratio","level":2,"score":0.5277000069618225},{"id":"https://openalex.org/C73753567","wikidata":"https://www.wikidata.org/wiki/Q4348754","display_name":"Mandibular second molar","level":3,"score":0.5228000283241272},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.5209000110626221},{"id":"https://openalex.org/C199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","level":1,"score":0.49959999322891235},{"id":"https://openalex.org/C2781121862","wikidata":"https://www.wikidata.org/wiki/Q256","display_name":"Turkish","level":2,"score":0.47450000047683716},{"id":"https://openalex.org/C44249647","wikidata":"https://www.wikidata.org/wiki/Q208498","display_name":"Confidence interval","level":2,"score":0.4494999945163727},{"id":"https://openalex.org/C62836269","wikidata":"https://www.wikidata.org/wiki/Q11136426","display_name":"Mandibular first molar","level":3,"score":0.4090999960899353},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.40619999170303345},{"id":"https://openalex.org/C2779767645","wikidata":"https://www.wikidata.org/wiki/Q5281607","display_name":"Mandible (arthropod mouthpart)","level":3,"score":0.3082999885082245},{"id":"https://openalex.org/C151956035","wikidata":"https://www.wikidata.org/wiki/Q1132755","display_name":"Logistic regression","level":2,"score":0.29490000009536743},{"id":"https://openalex.org/C27403532","wikidata":"https://www.wikidata.org/wiki/Q5532474","display_name":"Generalized estimating equation","level":2,"score":0.27399998903274536}],"mesh":[{"descriptor_ui":"D000293","descriptor_name":"Adolescent","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000368","descriptor_name":"Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003786","descriptor_name":"Dental Pulp Cavity","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":true},{"descriptor_ui":"D003786","descriptor_name":"Dental Pulp Cavity","qualifier_ui":"Q000033","qualifier_name":"anatomy & histology","is_major_topic":true},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008334","descriptor_name":"Mandible","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":false},{"descriptor_ui":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008963","descriptor_name":"Molar","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":true},{"descriptor_ui":"D008963","descriptor_name":"Molar","qualifier_ui":"Q000033","qualifier_name":"anatomy & histology","is_major_topic":true},{"descriptor_ui":"D014421","descriptor_name":"Turkey","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015995","descriptor_name":"Prevalence","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D054893","descriptor_name":"Cone-Beam Computed Tomography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D055815","descriptor_name":"Young Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":3,"locations":[{"id":"doi:10.2340/aos.v85.47151","doi":"https://doi.org/10.2340/aos.v85.47151","is_oa":true,"landing_page_url":"https://doi.org/10.2340/aos.v85.47151","pdf_url":"https://medicaljournalssweden.se/actaodontologica/article/download/47151/56070","source":{"id":"https://openalex.org/S42091764","display_name":"Acta Odontologica Scandinavica","issn_l":"0001-6357","issn":["0001-6357","1502-3850"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320449","host_organization_name":"Informa","host_organization_lineage":["https://openalex.org/P4310320449"],"host_organization_lineage_names":["Informa"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Odontologica Scandinavica","raw_type":"journal-article"},{"id":"pmid:42989999","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/42989999","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta odontologica Scandinavica","raw_type":"Journal Article"},{"id":"pmh:oai:doaj.org/article:04c1ba2a93b4482ea57e5c06a8d86215","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/04c1ba2a93b4482ea57e5c06a8d86215","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Acta Odontologica Scandinavica, Vol 85, Iss 1 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.2340/aos.v85.47151","doi":"https://doi.org/10.2340/aos.v85.47151","is_oa":true,"landing_page_url":"https://doi.org/10.2340/aos.v85.47151","pdf_url":"https://medicaljournalssweden.se/actaodontologica/article/download/47151/56070","source":{"id":"https://openalex.org/S42091764","display_name":"Acta Odontologica Scandinavica","issn_l":"0001-6357","issn":["0001-6357","1502-3850"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320449","host_organization_name":"Informa","host_organization_lineage":["https://openalex.org/P4310320449"],"host_organization_lineage_names":["Informa"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acta Odontologica Scandinavica","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.9391000270843506,"display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7225416636.pdf","grobid_xml":"https://content.openalex.org/works/W7225416636.grobid-xml"},"referenced_works_count":45,"referenced_works":["https://openalex.org/W1913355868","https://openalex.org/W1937938323","https://openalex.org/W1980312670","https://openalex.org/W1981495983","https://openalex.org/W1986738670","https://openalex.org/W2027863505","https://openalex.org/W2028463826","https://openalex.org/W2042184448","https://openalex.org/W2047143243","https://openalex.org/W2068791121","https://openalex.org/W2076996921","https://openalex.org/W2097637947","https://openalex.org/W2119199810","https://openalex.org/W2133587828","https://openalex.org/W2144253465","https://openalex.org/W2152692813","https://openalex.org/W2160808879","https://openalex.org/W2268279278","https://openalex.org/W2603300702","https://openalex.org/W2615756642","https://openalex.org/W2752046103","https://openalex.org/W2752683435","https://openalex.org/W2785199321","https://openalex.org/W2887515512","https://openalex.org/W2892226639","https://openalex.org/W2919320221","https://openalex.org/W2929639882","https://openalex.org/W2946268861","https://openalex.org/W2978917786","https://openalex.org/W2984839463","https://openalex.org/W2996958671","https://openalex.org/W3060844998","https://openalex.org/W3097382834","https://openalex.org/W3173956320","https://openalex.org/W3176460255","https://openalex.org/W4200011467","https://openalex.org/W4289793777","https://openalex.org/W4322743874","https://openalex.org/W4387010755","https://openalex.org/W4387904660","https://openalex.org/W4390263983","https://openalex.org/W4392546637","https://openalex.org/W4396900144","https://openalex.org/W7131645009","https://openalex.org/W7158207470"],"related_works":["https://openalex.org/W4289793777","https://openalex.org/W7167454606","https://openalex.org/W4391523720","https://openalex.org/W4393182460","https://openalex.org/W6964160117","https://openalex.org/W1913355868","https://openalex.org/W3092280334","https://openalex.org/W7158207470","https://openalex.org/W7131645009","https://openalex.org/W3112147591"],"abstract_inverted_index":{"OBJECTIVE:":[0],"The":[1,164,244],"purpose":[2],"of":[3,13,41,46,186,261,267],"this":[4],"study":[5],"was":[6,108,170,248],"to":[7,28,110],"assess":[8,111],"the":[9,29,39,61,69,105,112,171,175,218,225,249,258,268],"prevalence":[10,40],"and":[11,71,82,117,121,143,207,223,263],"configurations":[12],"middle":[14],"mesial":[15,269],"canals":[16,73],"(MMCs)":[17],"in":[18,43,77,151,157,236,241],"a":[19],"Turkish":[20,48,221],"subpopulation":[21,222],"using":[22,60,74],"cone-beam":[23],"computed":[24],"tomography":[25],"(CBCT)":[26],"according":[27],"Barros-Costa":[30,62],"classification.":[31],"MATERIALS":[32],"AND":[33],"METHODS:":[34],"Two":[35],"experienced":[36],"endodontists":[37],"assessed":[38],"MMCs":[42,57,146,231,262],"mandibular":[44,126,152,179,237],"molars":[45,127,154,159,181,192,239],"213":[47],"patients":[49],"aged":[50],"18-65":[51],"years":[52],"(111":[53],"females,":[54],"102":[55],"males).":[56],"were":[58,86,147,209,232],"categorized":[59],"classification":[63],"based":[64],"on":[65],"their":[66],"association":[67],"with":[68,101,213],"mesiobuccal":[70,138],"mesiolingual":[72,135,172,245],"CBCT":[75,227],"scans":[76],"all":[78],"three":[79],"planes.":[80],"Chi-square":[81],"Fisher's":[83],"exact":[84],"tests":[85],"used":[87,109],"for":[88],"unadjusted":[89],"comparisons":[90],"(p":[91,161],"<":[92,162,203],"0.05).":[93],"A":[94],"multivariable":[95,176],"generalized":[96],"estimating":[97],"equations":[98],"(GEE)":[99],"model":[100],"patient":[102],"ID":[103],"as":[104],"clustering":[106],"variable":[107],"associations":[113],"between":[114],"MMC":[115,168,189,214],"presence":[116],"tooth":[118],"type,":[119],"age,":[120],"sex.":[122],"RESULTS:":[123],"Of":[124],"589":[125],"evaluated,":[128],"12.4%":[129],"had":[130,182],"an":[131,188],"MMC.":[132],"Distribution":[133],"was:":[134],"confluent":[136,139,144,246],"(43.8%),":[137],"(24.7%),":[140],"independent":[141],"(23.3%),":[142],"(8.2%).":[145],"significantly":[148,183,211],"more":[149,234],"frequent":[150],"first":[153,180,238],"(20.6%)":[155],"than":[156,190,240],"second":[158,191,242],"(6.6%)":[160],"0.001).":[163],"most":[165,250],"frequently":[166,235,251],"observed":[167,252],"type":[169],"confluent.":[173],"In":[174],"GEE":[177],"analysis,":[178],"higher":[184],"odds":[185,194],"presenting":[187],"(adjusted":[193],"ratio":[195],"=":[196],"3.54,":[197],"95%":[198],"confidence":[199],"interval:":[200],"2.16-5.80,":[201],"p":[202],"0.001),":[204],"whereas":[205],"age":[206],"sex":[208],"not":[210],"associated":[212],"presence.":[215],"CONCLUSIONS:":[216],"Within":[217],"examined":[219],"single-center":[220],"under":[224],"specific":[226],"acquisition":[228],"protocol":[229],"used,":[230],"detected":[233],"molars.":[243],"configuration":[247],"morphological":[253],"type.":[254],"These":[255],"findings":[256],"highlight":[257],"anatomical":[259],"variability":[260],"support":[264],"careful":[265],"assessment":[266],"root":[270],"canal":[271],"system":[272],"during":[273],"endodontic":[274],"treatment.":[275]},"counts_by_year":[],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2026-11-07T00:00:00"}
