1985 Volume 31 Issue 10 Pages 2367-2371
Twin studies are a good source of information about the relative influence of genetic and environmental factors in human maxillofacial malformations. The one major drawback is the low frequency of twins born with congenital maiformation.
A pair of female dizygotic twins with maxillofacial malformations is described in this paper. One of them was affected by cleft lip, jaw and palate and the other by first and second branchial arch syndrome.