Understanding Craniofacial Conditions and Their Impact on Speech Prevalence of Cleft Lip and Palate in the U.S. Cleft lip and palate are among the most common congenital craniofacial conditions in the United States. Approximately 1 in every 1,600 babies is born with a cleft lip combined with cleft palate. About 1 in every 2,800 babies […]