Alternative titles and symbols : Amelogenesis imperfecta, pigmented hypomaturation type, 2;
Description : Autosomal recessive amelogenesis imperfecta pigmented hypomaturation type is characterized
by enamel of normal thickness that is hypomineralized and has a mottled appearance.
The slightly soft enamel detaches easily from the dentin, and radiographs show a lack
of contrast between enamel and dentin (Witkop, 1989).;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the matrix metalloproteinase-20 gene (MMP20, 604629.0001);