{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T10:40:18Z","timestamp":1756291218824,"version":"3.44.0"},"reference-count":7,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2021,3,3]]},"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:p>The mylohyoid ridges or lines are pairs of anatomical bony structures located on the internal or lingual surface of mandible. They are the origin for the mylohyoid muscle. These bony structures are distinct in the mandibular molar region, well protected and gradually become undiscernible towards anterior mandible. Bilateral, isolated fracture of the mylohyoid ridges without concomitant mandibular fracture is rare and, to the best of the authors knowledge, was never previously described. This case report describes an isolated bilateral mylohyoid groove fracture, where one side of a necrotic bone fragment at the fracture site progress to became a nidus of infection, which later caused submandibular space abscess requiring emergency surgical intervention. Diagnosis, possible theory to explain the occurrence of isolated mylohyoid groove fracture and management of these condition are explained in this report.<\/jats:p>","DOI":"10.1136\/bcr-2020-239542","type":"journal-article","created":{"date-parts":[[2021,3,17]],"date-time":"2021-03-17T12:21:29Z","timestamp":1615983689000},"page":"e239542","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Bilateral isolated mylohyoid groove fracture progressing as submandibular abscess: an usual fracture pattern of mandible"],"prefix":"10.1136","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7383-2962","authenticated-orcid":false,"given":"Jothi Raamahlingam","family":"Rajaran","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Fakulti Pergigian, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"AJ","family":"Nazimi","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, Fakulti Pergigian, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2021,3,17]]},"reference":[{"key":"2025082703103102000_14.3.e239542.1","doi-asserted-by":"crossref","first-page":"1453","DOI":"10.4103\/jfmpc.jfmpc_89_19","article-title":"A retrospective cross-sectional study of maxillofacial trauma in Delhi-NCR region","volume":"8","author":"Chandra","year":"2019","journal-title":"J Family Med Prim Care"},{"key":"2025082703103102000_14.3.e239542.2","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1038\/sj.bdj.4812536","article-title":"Fracture in the chin area: an unusual case of mandibular torus fracture","volume":"199","author":"Saura-Ingles","year":"2005","journal-title":"Br Dent J"},{"key":"2025082703103102000_14.3.e239542.3","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1631\/jzus.B1600552","article-title":"A finite element analysis of the stress distribution to the mandible from impact forces with various orientations of third molars","volume":"19","author":"Liu","year":"2018","journal-title":"J Zhejiang Univ Sci B"},{"key":"2025082703103102000_14.3.e239542.4","doi-asserted-by":"crossref","first-page":"S8","DOI":"10.4103\/jispcd.JISPCD_106_17","article-title":"Measurement of lingual cortical plate thickness and lingual position of lower third molar roots using cone beam computed tomography","volume":"7","author":"Mallick","year":"2017","journal-title":"J Int Soc Prev Community Dent"},{"key":"2025082703103102000_14.3.e239542.5","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1111\/ger.12286","article-title":"Spontaneous fracture of the genial tubercles of the mandible: a case report and review of the literature","volume":"34","author":"Wan","year":"2017","journal-title":"Gerodontology"},{"key":"2025082703103102000_14.3.e239542.6","first-page":"168","article-title":"Factors influencing lingual nerve paraesthesia following third molar surgery: a prospective clinical study","volume":"12","author":"Charan Babu","year":"2013","journal-title":"J Maxillofac Oral Surg"},{"key":"2025082703103102000_14.3.e239542.7","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1007\/s101560170036","article-title":"Incidence of deep fascial space infection after surgical removal of the mandibular third molars","volume":"7","author":"Yoshii","year":"2001","journal-title":"J Infect Chemother"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2020-239542","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T10:10:39Z","timestamp":1756289439000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2020-239542"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,3]]},"references-count":7,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2021,3,17]]},"published-print":{"date-parts":[[2021,3]]}},"alternative-id":["10.1136\/bcr-2020-239542"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2020-239542","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2021,3]]}}}