title: Inverted eruption of a supplemental lower premolar: report of an unusual case.
abstract: Eruption of an inverted tooth is a rare condition. This case report describes the inverted eruption of a supplemental lower premolar in a 10-year-old Caucasian female. The tooth erupted in a downward direction and reached the lower cortical border of the mandible 2 years later. During an 8-year follow-up period, the tooth did not interfere with eruption of permanent teeth and the patient remained symptom-free. Considering clinical examination, medical and dental history as well as scientific evidence, the inverted eruption was most likely caused by a developmental abnormality with an inverted location of the tooth bud. This reported eruption of an inverted tooth is extremely rare and requires a radiographic follow-up to evaluate the relative position of this tooth in the jaw bone and its potential interference with neighbouring teeth or anatomic structures.
authors.affiliation: Oral Imaging Center, School of Dentistry, Oral Pathology and Maxillofacial Surgery, Katholieke Universiteit Leuven, Belgium. Reinhilde.Jacobs@uz.kuleuven.ac.be
authors.forename: R
authors.initials: R
authors.lastname: Jacobs
authors.forename: G
authors.initials: G
authors.lastname: Willems
mesh_terms: D001641:Bicuspid / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology; D002648:Child; D019140:Dental Care for Children; D005260:Female; D006801:Humans; D008334:Mandible / Q000000981:diagnostic imaging; D011859:Radiography; D014078:Tooth Eruption