“…Some of the known risk factors for OFCs include polymorphisms of genes that influence orofacial development, parental lifestyle and related health conditions (i.e., smoking, obesity, and diabetes) (Åberg, Westbom, & Källén, 2001; Blanco, Colombo, & Suazo, 2015; Health & Services, 2014), pharmaceuticals and nutritional supplements (G. Shaw, 1995; G. M. Shaw, Wasserman, O'Malley, Tolarova, & Lammer, 1995), and environmental exposure to chemicals (Spinder et al, 2017). It is suspected that many OFC cases result from a combination of these factors.…”