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Dr Anitha Anchan | Updated: March 4, 2014 7:10 pm. Tags: Birth Defects Gum disease Oral Health Cleft lip Tongue tie. It is likely that you have seen kids with a cleft in the lip sometimes continuing into the palate (or roof of your mouth) or tooth/teeth missing from birth. Well, these are what are called congenital anomalies or birth defects.
Failure of any these teeth to fully develop is called congenitally missing teeth or, in scientific terms, hypodontia. Congenitally missing teeth is actually one of the most common dental developmental abnormalities, even more common than double teeth and having an extra tooth.