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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.
If a child loses a baby tooth early as a result of tooth decay or an accident, the teeth beside it might drift into the empty space. Teeth in the opposite jaw might also move up or down to fill the gap. This can crowd permanent teeth and cause them to come in crooked.