The exact incidence of<unk>  is uncertain. Estimates vary widely, from 1 in 700 people in northern Sweden to 1 in 14,000 people in the United States. The prevalence of<unk>  in non-human animals has not been explored, however its presence has been noted. This condition is neither caused by nor the equivalent of dental fluorosis. A manifestation of<unk>  known as "snow capping" is confined to the outer prismless enamel layer. It may superficially resemble dental fluorosis, and indeed "snow capping" may be used as a descriptive term in some incidents of dental fluorosis.
Amelogenesis imperfecta
Danon disease
Panayiotopoulos syndrome
Pedophilia
Progeria
Kufs disease
Xeroderma
Hawkinsinuria