Health / Medical Topics |
Tooth and Nail Syndrome
A rare genetic disorder with an autosomal dominant pattern of inheritance. It is associated with mutations in the MSX-1 gene on chromosome 4 which alter ectodermal morphogenesis. Characteristic clinical signs include absent or poorly-formed dentition and brittle, spoon-shaped finger and toenails. Clinical course features an increased incidence of dental caries but is essentially benign. (NCI Thesaurus)
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The lower right 3rd molar, as defined by the Universal tooth numbering system.
The lower right 2nd molar, as defined by the Universal tooth numbering system.
The first, permanent, six-year molar of the lower right arch as defined by the Universal tooth numbering system.
The upper right 2nd molar, as defined by the Universal tooth numbering system.