biostudies-literatureUnknown2022Wang JConcrescence reveals a rare developmental anomaly in which two fully formed teeth are joined along the root surfaces by cementum, and generally occurs in maxillary molars, especially in a third molar and a supernumerary tooth. Very few cases have been reported about the concrescence of a third molar and a supernumerary fourth molar. Based on our available knowledge, this case report described a rare presentation in which concrescence is observed between a third molar and a supernumerary fourth molar in the mandible by diagnosing with cone-beam CT and histological examination.Case reports in dentistry3771299https://www.ebi.ac.uk/biostudies/studies/S-EPMC9452987biostudies-literatureA Rare Case of Concrescence of Mandibular Third Molar and Supernumerary Fourth Molar.PMC9452987Yang XLi ZZhang JWang EYuan LWang JZhang BfalseA Rare Case of Concrescence of Mandibular Third Molar and Supernumerary Fourth Molar.Concrescence reveals a rare developmental anomaly in which two fully formed teeth are joined along the root surfaces by cementum, and generally occurs in maxillary molars, especially in a third molar and a supernumerary tooth. Very few cases have been reported about the concrescence of a third molar and a supernumerary fourth molar. Based on our available knowledge, this case report described a rare presentation in which concrescence is observed between a third molar and a supernumerary fourth molar in the mandible by diagnosing with cone-beam CT and histological examination.2022-01-01T00:00:00Z20222025-04-18T15:35:33.631Z2025-04-07T02:21:34.02ZS-EPMC94529873609069210.1155/2022/3771299