{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T20:03:24Z","timestamp":1787169804580,"version":"build-2736575974"},"reference-count":37,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE:<\/jats:title>\n                    <jats:p>To determine the prevalence of dilaceration in a sample of patients presenting for initial orthodontic care.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS:<\/jats:title>\n                    <jats:p>Examining radiographs from a random sample of orthopantomogram images was used to acquire the data. In all, 2,801 dental records were evaluated at Oman Dental College (ODC), Oman. A dental X-ray processing software was utilized to view the images. A tooth was classified as having a mesial\/distal dilaceration if its long axis exhibited an angle of 90 degrees or greater. Dilacerated roots in the buccal\/lingual direction were diagnosed by observing the appearance of a spherical opaque area with a dark shadow in its central region, projected by the apical foramen, which gave the root canal a \u201cbull's-eye\u201d appearance.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS:<\/jats:title>\n                    <jats:p>Dilacerations were found in 17.32% of the records examined. The maxillary second molars (22.71%) were the most commonly affected, followed by the mandibular third molars and mandibular lateral incisors (21.90% and 17.23%, respectively). The central incisors and canines were the least affected, with dilaceration affecting less than 0.2% of the teeth. The mandible was found to have more dilacerations than the maxilla (53.78% and 46.22%, respectively). 61.03% of dilacerations occurred in molars, 43.12% of which occurred in third molars.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSION:<\/jats:title>\n                    <jats:p>Dilaceration is a notable dental anomaly that can affect any tooth, with some teeth being more affected than others. Dilaceration in maxillary second molars and mandibular lateral incisors is more common in the population of this study than in other populations reported in the literature. Recognizing the condition will allow for more effective orthodontic treatment.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/jos.jos_75_22","type":"journal-article","created":{"date-parts":[[2023,9,7]],"date-time":"2023-09-07T00:08:51Z","timestamp":1694045331000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":6,"title":["Prevalence of mesio-distal dilaceration in patients presenting for initial orthodontic care: A retrospective study"],"prefix":"10.4103","volume":"12","author":[{"given":"Abubaker","family":"Qutieshat","sequence":"first","affiliation":[{"name":"Department of Adult Restorative Dentistry, Oman Dental College, Muscat, Oman"},{"name":"Department of Restorative Dentistry, Dundee Dental Hospital and School, University of Dundee, Dundee, Scotland, UK,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nutayla","family":"Al Harthy","sequence":"additional","affiliation":[{"name":"Department of Adult Restorative Dentistry, Oman Dental College, Muscat, Oman"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shahab","family":"Javanmardi","sequence":"additional","affiliation":[{"name":"Department of Adult Restorative Dentistry, Oman Dental College, Muscat, Oman"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gurdeep","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Adult Restorative Dentistry, Oman Dental College, Muscat, Oman"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Viresh","family":"Chopra","sequence":"additional","affiliation":[{"name":"Department of Adult Restorative Dentistry, Oman Dental College, Muscat, Oman"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rayhana","family":"Aouididi","sequence":"additional","affiliation":[{"name":"Department of Oral Biology and Diagnostic Sciences, Dawson Dental, Toronto, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Omar","family":"Al Hanashi","sequence":"additional","affiliation":[{"name":"Department of Adult Restorative Dentistry, Oman Dental College, Muscat, Oman"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdulghani","family":"Al Arabi","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Oman Dental College, Muscat, Oman"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2023,3]]},"reference":[{"key":"R1-20240830","doi-asserted-by":"crossref","first-page":"427","DOI":"10.1111\/j.1600-9657.2010.00915.x","article-title":"Dilaceration of maxillary central incisor: A literature review","volume":"26","author":"Topouzelis","year":"2010","journal-title":"Dent Traumatol"},{"key":"R2-20240830","doi-asserted-by":"crossref","first-page":"389","DOI":"10.1111\/iej.12867","article-title":"A new system for classifying tooth, root and canal anomalies","volume":"51","author":"Ahmed","year":"2018","journal-title":"Int Endod J"},{"key":"R3-20240830","first-page":"68","article-title":"Developmental anomalies affecting the morphology of teeth\u2013A review","volume":"12","author":"Shrestha","year":"2015","journal-title":"Rev Bras Odontol"},{"key":"R4-20240830","doi-asserted-by":"crossref","first-page":"462","DOI":"10.3390\/medicina58040462","article-title":"The Morphology of impacted maxillary central incisors: A systematic review","volume":"58","author":"G","year":"2022","journal-title":"Medicina (Kaunas)"},{"key":"R5-20240830","doi-asserted-by":"crossref","first-page":"390","DOI":"10.1016\/j.ajodo.2017.11.034","article-title":"New clues for early management of maxillary impacted central incisors based on 3-dimensional reconstructed models","volume":"154","author":"Lyu","year":"2018","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"R6-20240830","doi-asserted-by":"crossref","first-page":"910","DOI":"10.1046\/j.1365-2591.2002.00593.x","article-title":"Prevalence of dilaceration in Jordanian adults","volume":"35","author":"Hamasha","year":"2002","journal-title":"Int Endod J"},{"key":"R7-20240830","doi-asserted-by":"crossref","first-page":"104","DOI":"10.1016\/j.tripleo.2005.08.021","article-title":"Prevalence of root dilaceration in adult dental patients in Croatia","volume":"102","author":"Mal\u010di\u0107","year":"2006","journal-title":"Oral Surg Oral Med Oral Pathol Oral Radiol Endod"},{"key":"R8-20240830","doi-asserted-by":"crossref","first-page":"2900","DOI":"10.1016\/j.sjbs.2021.02.023","article-title":"Investigating prevalence of dental anomalies in Eastern Province of Saudi Arabia through digital orthopantomogram","volume":"28","author":"ALHumaid","year":"2021","journal-title":"Saudi J Biol Sci"},{"key":"R9-20240830","doi-asserted-by":"crossref","first-page":"61","DOI":"10.15644\/asc56\/1\/7","article-title":"Prevalence of dental anomalies in orthodontic patients","volume":"56","author":"Drenski Balija","year":"2022","journal-title":"Acta Stomatol Croat"},{"key":"R11-20240830","doi-asserted-by":"crossref","first-page":"1","DOI":"10.5624\/isd.2011.41.1.1","article-title":"Assessment of panoramic radiography as a national oral examination tool: Review of the literature","volume":"41","author":"J-W","year":"2011","journal-title":"Imaging Sci Dent"},{"key":"R12-20240830","first-page":"395","article-title":"Prevalence of dental anomalies in orthodontic patients","volume":"43","author":"Thongudomporn","year":"1998","journal-title":"Aust Dent J"},{"key":"R13-20240830","doi-asserted-by":"crossref","first-page":"1025","DOI":"10.1016\/j.joen.2007.04.013","article-title":"Dilaceration: Review of an endodontic challenge","volume":"33","author":"Jafarzadeh","year":"2007","journal-title":"J Endod"},{"key":"R14-20240830","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1067\/mod.2001.113409","article-title":"Predicting and preventing root resorption: Part I. Diagnostic factors","volume":"119","author":"Sameshima","year":"2001","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"R16-20240830","doi-asserted-by":"crossref","first-page":"439","DOI":"10.1111\/j.1600-9657.2009.00796.x","article-title":"Dilaceration among Nigerians: Prevalence, distribution, and its relationship with trauma","volume":"25","author":"Udoye","year":"2009","journal-title":"Dental Traumatol"},{"key":"R17-20240830","doi-asserted-by":"crossref","first-page":"519","DOI":"10.1016\/0030-4220(83)90239-6","article-title":"Dilaceration of permanent upper lateral incisors: Frequency, direction, and endodontic treatment implications","volume":"55","author":"Chohayeb","year":"1983","journal-title":"Oral Surgery, Oral Medicine, Oral Pathology"},{"key":"R18-20240830","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1007\/s11282-012-0105-1","article-title":"A retrospective study of the prevalence and characteristics of root dilaceration in a sample of the Turkish population","volume":"29","author":"Bodrumlu","year":"2013","journal-title":"Oral Radiol"},{"key":"R19-20240830","first-page":"140","article-title":"Prevalence of dental developmental anomalies: A radiographic study","volume":"24","author":"Ardakani","year":"2007","journal-title":"Community Dent Health"},{"key":"R20-20240830","first-page":"276","article-title":"Prevalence of developmental dental anomalies and defects: A clinical survey","volume":"14","author":"Kashmoola","year":"2021","journal-title":"J Int Dent Med Res"},{"key":"R21-20240830","doi-asserted-by":"crossref","first-page":"309","DOI":"10.4103\/jioh.jioh_199_19","article-title":"Prevalence and distribution of dental anomalies among a sample of orthodontic and non-orthodontic patients: A retrospective study","volume":"11","author":"Aldhorae","year":"2019","journal-title":"J Int Oral Health"},{"key":"R22-20240830","doi-asserted-by":"crossref","first-page":"426","DOI":"10.1016\/j.arcped.2018.07.002","article-title":"Prevalence of dental anomalies in French orthodontic patients: A retrospective study","volume":"25","author":"Baron","year":"2018","journal-title":"Arch P\u00e9diatr"},{"key":"R23-20240830","doi-asserted-by":"crossref","first-page":"323","DOI":"10.5603\/FM.a2017.0087","article-title":"Investigation of prevalence of dental anomalies by using digital panoramic radiographs","volume":"77","author":"Bilge","year":"2018","journal-title":"Folia Morphol (Warsz)"},{"key":"R24-20240830","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1590\/2177-6709.21.6.098-102.oar","article-title":"Dental anomalies in an orthodontic patient population with maxillary lateral incisor agenesis","volume":"21","author":"Citak","year":"2016","journal-title":"Dental Press J Orthod"},{"key":"R25-20240830","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1590\/S2176-94512012000600020","article-title":"Prevalence assessment of root dilaceration in permanent incisors","volume":"17","author":"Silva","year":"2012","journal-title":"Dental Press J Orthod"},{"key":"R26-20240830","doi-asserted-by":"crossref","first-page":"197","DOI":"10.5005\/jp-journals-10024-2745","article-title":"Prevalence and characteristics of three-rooted mandibular molars in Saudi population: A retrospective radiographic analysis","volume":"21","author":"Alahmed","year":"2020","journal-title":"J Contemp Dent Pract"},{"key":"R27-20240830","doi-asserted-by":"crossref","first-page":"79","DOI":"10.3390\/medicina55030079","article-title":"How to manage impacted third molars: Germectomy or delayed removal? A systematic literature review","volume":"55","author":"Staderini","year":"2019","journal-title":"Medicina (Kaunas)"},{"key":"R28-20240830","doi-asserted-by":"crossref","first-page":"2556","DOI":"10.1002\/ajmg.a.31371","article-title":"Craniofacial and dental phenotype of Smith\u2013Magenis syndrome","volume":"140","author":"Tomona","year":"2006","journal-title":"Am J Med Genet A"},{"key":"R30-20240830","doi-asserted-by":"crossref","first-page":"448","DOI":"10.1067\/mod.2000.109031","article-title":"The royal London space planning: An integration of space analysis and treatment planning: Part I: Assessing the space required to meet treatment objectives","volume":"118","author":"Kirschen","year":"2000","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"R31-20240830","doi-asserted-by":"crossref","first-page":"401","DOI":"10.1111\/edt.12433","article-title":"Frequency of crown and root dilaceration of permanent incisors after dental trauma to their predecessor teeth","volume":"34","author":"de Amorim","year":"2018","journal-title":"Dental Traumatol"},{"key":"R32-20240830","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1179\/bjo.22.3.279","article-title":"Dilaceration of a permanent mandibular incisor. A case report","volume":"22","author":"Chadwick","year":"1995","journal-title":"Br J Orthod"},{"key":"R33-20240830","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1111\/j.1600-0722.1971.tb02013.x","article-title":"The effect of traumatic injuries to primary teeth on their permanent successors: I. A clinical and histologic study of 117 injured permanent teeth","volume":"79","author":"Andreasen","year":"1971","journal-title":"Eur J Oral Sci"},{"key":"R34-20240830","first-page":"293","article-title":"Orthodontic management of a dilacerated maxillary central incisor with an unusual sequela","volume":"32","author":"McNamara","year":"1998","journal-title":"J Clin Orthod"},{"key":"R35-20240830","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1111\/j.1600-0714.1991.tb00913.x","article-title":"Eruption disturbances of permanent molars: A review","volume":"20","author":"Raghoebar","year":"1991","journal-title":"J Oral Pathol Med"},{"key":"R36-20240830","doi-asserted-by":"crossref","first-page":"220","DOI":"10.1007\/s12663-011-0286-x","article-title":"Third molars: A threat to periodontal health??","volume":"11","author":"Kaveri","year":"2012","journal-title":"J Maxillof Oral Surg"},{"key":"R37-20240830","doi-asserted-by":"crossref","first-page":"1013","DOI":"10.1111\/iej.12724","article-title":"Root and root canal morphology of the permanent dentition in a Caucasian population: A cone-beam computed tomography study","volume":"50","author":"Martins","year":"2017","journal-title":"Int Endod J"},{"key":"R38-20240830","first-page":"19","article-title":"Evaluation of root canal configuration of maxillary and mandibular anterior teeth using cone beam computed tomography: An in-vivo study","volume":"47","author":"da Silva","year":"2016","journal-title":"Quintessence Int"},{"key":"R39-20240830","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1016\/j.joen.2017.08.027","article-title":"Complicated root canal morphology of mandibular lateral incisors is associated with the presence of distolingual root in mandibular first molars: A cone-beam computed tomographic study in a Taiwanese population","volume":"44","author":"Y-C","year":"2018","journal-title":"J Endod"},{"key":"R40-20240830","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1590\/1807-3107BOR-2015.vol29.0090","article-title":"Root and canal symmetry in the mandibular anterior teeth of patients attending a dental clinic: CBCT study","volume":"29","author":"Kayaoglu","year":"2015","journal-title":"Braz Oral Res"}],"container-title":["Journal of Orthodontic Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/jos.jos_75_22","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T19:13:21Z","timestamp":1787166801000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/jos.jos_75_22"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,3]]},"references-count":37,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2023]]}},"URL":"https:\/\/doi.org\/10.4103\/jos.jos_75_22","relation":{},"ISSN":["2278-1897","2278-0203"],"issn-type":[{"value":"2278-1897","type":"print"},{"value":"2278-0203","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,3]]},"assertion":[{"value":"2022-08-09","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-11-01","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}}]}}