{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T19:59:26Z","timestamp":1790625566588,"version":"4.1.0"},"reference-count":39,"publisher":"Elsevier BV","issue":"11","license":[{"start":{"date-parts":[[2024,11,1]],"date-time":"2024-11-01T00:00:00Z","timestamp":1730419200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2024,11,1]],"date-time":"2024-11-01T00:00:00Z","timestamp":1730419200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"funder":[{"DOI":"10.13039\/501100004829","name":"Science and Technology Department of Sichuan Province","doi-asserted-by":"publisher","award":["2023NSFSC0554"],"award-info":[{"award-number":["2023NSFSC0554"]}],"id":[{"id":"10.13039\/501100004829","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62373263"],"award-info":[{"award-number":["62373263"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62171193"],"award-info":[{"award-number":["62171193"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.jp","jendodon.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Journal of Endodontics"],"published-print":{"date-parts":[[2024,11]]},"DOI":"10.1016\/j.joen.2024.09.005","type":"journal-article","created":{"date-parts":[[2024,9,20]],"date-time":"2024-09-20T21:06:31Z","timestamp":1726866391000},"page":"1560-1568.e3","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":3,"title":["Micro\u2013Computed Tomographic Analysis of Radicular Dentin Thickness in Mandibular Second Molars Across Diverse Anatomic Root Variations: Identifying Potential Danger Zones"],"prefix":"10.1016","volume":"50","author":[{"given":"Min","family":"Chen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7232-5846","authenticated-orcid":false,"given":"Chialing","family":"Tsauo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shenghao","family":"Qiu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiwei","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingzhi","family":"Ma","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5222-8718","authenticated-orcid":false,"given":"Ove A.","family":"Peters","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0877-6754","authenticated-orcid":false,"given":"Yuan","family":"Gao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.joen.2024.09.005_bib1","doi-asserted-by":"crossref","first-page":"792","DOI":"10.14219\/jada.archive.1980.0427","article-title":"The anticurvature filing method to prepare the curved root canal","volume":"101","author":"Abou-Rass","year":"1980","journal-title":"J Am Dent Assoc"},{"key":"10.1016\/j.joen.2024.09.005_bib2","doi-asserted-by":"crossref","first-page":"1501","DOI":"10.1111\/iej.13141","article-title":"Anatomical danger zone reconsidered: a micro-CT study on dentine thickness in mandibular molars","volume":"52","author":"De-Deus","year":"2019","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib3","doi-asserted-by":"crossref","first-page":"524","DOI":"10.1111\/iej.13025","article-title":"Micro-CT analysis of danger zone thickness in the mesiobuccal roots of maxillary first molars","volume":"52","author":"Ordinola-Zapata","year":"2019","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib4","doi-asserted-by":"crossref","first-page":"659","DOI":"10.1016\/j.joen.2021.12.012","article-title":"Effect of Access Cavity Preparation on Dentin Preservation, Biomechanical Property, and Instrumentation Efficacy: A Micro-Computed Tomographic Study","volume":"48","author":"Peng","year":"2022","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib5","doi-asserted-by":"crossref","first-page":"672","DOI":"10.1111\/iej.13740","article-title":"A micro-CT analysis of radicular dentine thickness in mandibular first premolars presenting C-shaped root canals: Identification of potential danger zones","volume":"55","author":"Sierra-Cristancho","year":"2022","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib6","doi-asserted-by":"crossref","first-page":"973","DOI":"10.1016\/j.joen.2013.04.039","article-title":"A micro-computed tomographic analysis of wall thickness of C-shaped canals in mandibular first premolars","volume":"39","author":"Gu","year":"2013","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib7","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1186\/s12903-020-1026-8","article-title":"Root dentine thickness of danger zone in mesial roots of mandibular first molars","volume":"20","author":"Zhou","year":"2020","journal-title":"BMC Oral Health"},{"key":"10.1016\/j.joen.2024.09.005_bib8","doi-asserted-by":"crossref","first-page":"1442","DOI":"10.1016\/j.joen.2017.04.016","article-title":"Worldwide prevalence of mandibular second molar C-Shaped morphologies evaluated by cone-beam computed tomography","volume":"43","author":"von Zuben","year":"2017","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib9","doi-asserted-by":"crossref","first-page":"871","DOI":"10.1016\/j.joen.2013.10.035","article-title":"Root and root canal morphology in maxillary second molar with fused root from a native Chinese population","volume":"40","author":"Zhang","year":"2014","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib10","doi-asserted-by":"crossref","first-page":"857","DOI":"10.1111\/j.1365-2591.2011.01896.x","article-title":"C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography","volume":"44","author":"Zheng","year":"2011","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib11","first-page":"43","article-title":"Morphological studies on the roots of Japanese mandibular second molars","volume":"85","author":"Kotoku","year":"1985","journal-title":"Shikwa Gakuho"},{"key":"10.1016\/j.joen.2024.09.005_bib12","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1537\/ase.070723","article-title":"Root and canal morphology of sri lankan and Japanese premolars","volume":"116","author":"Peiris","year":"2008","journal-title":"Anthropol Sci"},{"key":"10.1016\/j.joen.2024.09.005_bib13","doi-asserted-by":"crossref","first-page":"275","DOI":"10.5357\/koubyou1927.15.4_275","article-title":"Gutter-shaped root in human mandibular molars","volume":"15","author":"Nakayama","year":"1941","journal-title":"Kokubyo Zasshi"},{"key":"10.1016\/j.joen.2024.09.005_bib14","first-page":"533","article-title":"C-shaped root canals in single-rooted mandibular second molars of Malaysians","volume":"74","author":"Thong","year":"1995","journal-title":"J Dent Res"},{"key":"10.1016\/j.joen.2024.09.005_bib15","doi-asserted-by":"crossref","first-page":"899","DOI":"10.1097\/01.don.0000136207.12204.e4","article-title":"C-shaped canal system in mandibular second molars: Part I--Anatomical features","volume":"30","author":"Fan","year":"2004","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib16","doi-asserted-by":"crossref","first-page":"1233","DOI":"10.1016\/j.joen.2008.07.015","article-title":"Evaluation of a rotary instrumentation method for C-shaped canals with micro-computed tomography","volume":"34","author":"Cheung","year":"2008","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib17","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1111\/j.1365-2591.1987.tb00586.x","article-title":"The risk of perforation in the curved canal: anticurvature filing compared with the stepback technique","volume":"20","author":"Lim","year":"1987","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib18","doi-asserted-by":"crossref","first-page":"807","DOI":"10.1111\/j.1365-2591.2012.02037.x","article-title":"A biometric study of C-shaped root canal systems in mandibular second molars using cone-beam computed tomography","volume":"45","author":"Seo","year":"2012","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib19","doi-asserted-by":"crossref","first-page":"285","DOI":"10.1111\/aej.12833","article-title":"Internal and external morphological analysis of fused-rooted mandibular second molars in the Chinese population: A micro-computed tomographic study","volume":"50","author":"Wu","year":"2024","journal-title":"Aus Endodod J"},{"key":"10.1016\/j.joen.2024.09.005_bib20","doi-asserted-by":"crossref","first-page":"1155","DOI":"10.1016\/j.joen.2006.07.004","article-title":"C-shaped canal system in mandibular second molars Part III: The morphology of the pulp chamber floor","volume":"32","author":"Min","year":"2006","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib21","doi-asserted-by":"crossref","first-page":"1062","DOI":"10.1016\/j.joen.2006.05.014","article-title":"C-shaped canal system in mandibular second molars part IV: 3-D morphological analysis and transverse measurement","volume":"32","author":"Gao","year":"2006","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib22","first-page":"142","article-title":"Microcomputed tomographic analysis of the furcation grooves of maxillary first premolars","volume":"4","author":"Al-Shahrani","year":"2013","journal-title":"Annal Stomatol"},{"key":"10.1016\/j.joen.2024.09.005_bib23","doi-asserted-by":"crossref","first-page":"597","DOI":"10.1590\/0103-6440201601784","article-title":"Micro-CT evaluation of root and canal morphology of mandibular first premolars with radicular grooves","volume":"28","author":"Boschetti","year":"2017","journal-title":"Braz Dent J"},{"key":"10.1016\/j.joen.2024.09.005_bib24","doi-asserted-by":"crossref","first-page":"81","DOI":"10.14744\/eej.2020.18189","article-title":"Comparison of dentinal wall thickness in the furcation area (Danger Zone) in the first and second mesiobuccal canals in the maxillary first and second molars using cone-beam computed tomography","volume":"5","author":"Azimi","year":"2020","journal-title":"Eur Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib25","doi-asserted-by":"crossref","first-page":"481","DOI":"10.4103\/JCD.JCD_271_18","article-title":"The internal anatomy of danger zone of mandibular molars: A cone-beam computed tomography study","volume":"21","author":"Leite Pinto","year":"2018","journal-title":"J Cons Dent"},{"key":"10.1016\/j.joen.2024.09.005_bib26","doi-asserted-by":"crossref","first-page":"160","DOI":"10.14744\/eej.2018.96158","article-title":"Root dentine thickness and concavity depth in mandibular molars: a cone beam computed tomography population study","volume":"3","author":"Olivieri","year":"2018","journal-title":"Eur Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib27","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1016\/j.archoralbio.2018.05.002","article-title":"A cone-beam computed tomography study of the mesial cervical concavity of maxillary first premolars","volume":"92","author":"Fan","year":"2018","journal-title":"Arch Oral Biol"},{"key":"10.1016\/j.joen.2024.09.005_bib28","doi-asserted-by":"crossref","first-page":"122","DOI":"10.1111\/aej.12509","article-title":"Root dentine thickness in C-shaped lower second molars after instrumentation: A CBCT and micro-CT study","volume":"47","author":"Martin","year":"2021","journal-title":"Aus Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib29","doi-asserted-by":"crossref","first-page":"3641","DOI":"10.1007\/s00784-020-03686-7","article-title":"Root groove depth and inter-orifice canal distance as anatomical predictive factors for danger zone in the mesial root of mandibular first molars","volume":"25","author":"De-Deus","year":"2021","journal-title":"Clin Oral Invest"},{"key":"10.1016\/j.joen.2024.09.005_bib30","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1111\/iej.13649","article-title":"Impact of several NiTi-thermally treated instrumentation systems on biomechanical preparation of curved root canals in extracted mandibular molars","volume":"55","author":"de Carvalho","year":"2022","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib31","doi-asserted-by":"crossref","first-page":"109.e101","DOI":"10.1016\/j.prosdent.2023.04.010","article-title":"Microcomputed tomography analysis of the radicular residual dentin thickness in mandibular second molars after virtual fiber post placement: Identification of danger zones","volume":"130","author":"Qiu","year":"2023","journal-title":"J Prosth Dent"},{"key":"10.1016\/j.joen.2024.09.005_bib32","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.joen.2005.10.007","article-title":"Anatomical study of C-shaped canals in mandibular second molars by analysis of computed tomography","volume":"32","author":"Jin","year":"2006","journal-title":"J Endod"},{"key":"10.1016\/j.joen.2024.09.005_bib33","doi-asserted-by":"crossref","first-page":"519","DOI":"10.1111\/iej.13247","article-title":"Evaluation of dentine thickness of middle mesial canals of mandibular molars prepared with rotary instruments: a micro-CT study","volume":"53","author":"Keles","year":"2020","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib34","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1111\/iej.13642","article-title":"Influence of access cavity preparation on the dentine thickness of mesial canals of mandibular molars prepared with reciprocating instruments","volume":"55","author":"Silva","year":"2022","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib35","doi-asserted-by":"crossref","first-page":"1099","DOI":"10.1007\/s00784-020-03406-1","article-title":"Dentin thickness as a risk factor for vertical root fracture in endodontically treated teeth: a case-control study","volume":"25","author":"Silva","year":"2021","journal-title":"Clin Oral Invest"},{"key":"10.1016\/j.joen.2024.09.005_bib36","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1016\/S0011-8532(22)00950-8","article-title":"Pins and posts--why, when and how","volume":"20","author":"Caputo","year":"1976","journal-title":"Dent Clin North Am"},{"key":"10.1016\/j.joen.2024.09.005_bib37","first-page":"631","article-title":"Dental anatomical anomalies in Asians and Pacific Islanders","volume":"35","author":"Jerome","year":"2007","journal-title":"J Cal Dent Assoc"},{"key":"10.1016\/j.joen.2024.09.005_bib38","doi-asserted-by":"crossref","first-page":"1354","DOI":"10.1111\/iej.13119","article-title":"Evaluation of several instrumentation techniques and irrigation methods on the percentage of untouched canal wall and accumulated dentine debris in C-shaped canals","volume":"52","author":"Zhao","year":"2019","journal-title":"Int Endod J"},{"key":"10.1016\/j.joen.2024.09.005_bib39","doi-asserted-by":"crossref","first-page":"5505","DOI":"10.1007\/s00784-021-03858-z","article-title":"Effect of canal preparation with XP-endo Shaper and ProTaper next on root canal geometry and dentin thickness of mandibular premolars with radicular grooves and two canals: a micro-CT study","volume":"25","author":"Cerqueira","year":"2021","journal-title":"Clin Oral Invest"}],"container-title":["Journal of Endodontics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0099239924005211?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0099239924005211?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T00:34:30Z","timestamp":1778632470000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0099239924005211"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11]]},"references-count":39,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2024,11]]}},"alternative-id":["S0099239924005211"],"URL":"https:\/\/doi.org\/10.1016\/j.joen.2024.09.005","relation":{},"ISSN":["0099-2399"],"issn-type":[{"value":"0099-2399","type":"print"}],"subject":[],"published":{"date-parts":[[2024,11]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Micro\u2013Computed Tomographic Analysis of Radicular Dentin Thickness in Mandibular Second Molars Across Diverse Anatomic Root Variations: Identifying Potential Danger Zones","name":"articletitle","label":"Article Title"},{"value":"Journal of Endodontics","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.joen.2024.09.005","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2024 American Association of Endodontists.","name":"copyright","label":"Copyright"}]}}