Journal
AMERICAN JOURNAL OF MEDICAL GENETICS PART A
Volume 149A, Issue 11, Pages 2409-2414Publisher
WILEY-LISS
DOI: 10.1002/ajmg.a.33062
Keywords
Sotos syndrome; NSD1 gene; tooth agenesis; hypodontia
Categories
Funding
- HUCH Evo
- Turku University Central Hospital
- University of Turku Foundation
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The major diagnostic manifestations in Sotos syndrome include frontal bossing, downward slanting palpebral fissures, a prominent jaw, learning disability, and childhood overgrowth. Over 90% of clinically diagnosed patients have an abnormality in the NSD1 gene. We investigated the dental manifestations of this disorder and found one or several premolar teeth were absent in 9 out of 13 (69%) affected children and adolescents. A heterozygous mutation in the NSD1 gene was identified in 12 patients, including all patients with hypodontia. The severity of the hypodontia seemed to increase with the severity of aberration of the NSD1. More than 50% of the patients had enamel defects or excessive tooth wear. Dental age, based on tooth formation, was within the normal range. A characteristic occlusion for Sotos syndrome could not be identified. As agenesis of premolars was a common feature in these patients affected with Sotos syndrome, we recommend panoramic radiography at the age of 7 years. If premolars are missing, proper preventive and restorative care is necessary to maintain the deciduous molars. (C) 2009 Wiley-Liss, Inc.
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