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Dental Management of a Child with Trisomy 9 Mosaicism: A Case Report

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This case report presents the dental management of a 13-year-old girl with mosaic trisomy 9. She had: (1) severe psychomotor retardation; (2) short stature; (3) progressive microcephaly; (4) flat feet; (5) genu valgum; and (6) severe kyphoscoliosis. Dysmorphic facial features included: (1) maxillary prognathism; (2) narrow high-arched palate; (3) short philtrum; (4) small low posterior dysplastic ears; and (5) down slanting palpebral fissures with right eye ptosis. The case report describes initial treatment under general anesthesia and further treatments using conscious sedation. Emphasis was placed on the need to adjust the treatment to patient's skeletal malformations and respiratory problems by adjusting her ability to sit in the dental chair in an upright position. Supernumerary premolars and opalescent changes of the maxillary incisors might be part of the clinical features related to trisomy 9 mosaic syndrome.
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Keywords: GENETIC DISEASE; MOSAICISM; MULTIPLE CONGENITAL ANOMALIES; TRISOMY 9

Document Type: Case Report

Publication date: May 1, 2006

More about this publication?
  • Pediatric Dentistry is the official publication of the American Academy of Pediatric Dentistry, the American Board of Pediatric Dentistry and the College of Diplomates of the American Board of Pediatric Dentistry. It is published bi-monthly and is internationally recognized as the leading journal in the area of pediatric dentistry. The journal promotes the practice, education and research specifically related to the specialty of pediatric dentistry. This peer-reviewed journal features scientific articles, case reports and abstracts of current pediatric dental research.
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