Ellis-van Creveld (EVC) syndrome is an autosomal recessive chondrodysplasia. The affected individuals bear a series of skeleton defects, congenital heart septum anomalies, midfacial and dental defects. Previous studies using Evc or Evc2 mutant mice have characterized the pathological mechanism leading to various types Some patients with EVC supernumerary tooth; however, it not known yet if ther...