The anomalies of tooth structure can be categorized as congenital, developmental, and acquired.9 Congenital anomalies are those that are present or exist at the time of birth. Such anomalies may result from genetic, infectious, environmental, or nutritional factors.7,9 Developmental anomalies are abnormalities that result from flawed growth and differentiation during tooth formation.9 By contrast, acquired anomalies are caused by external factors which affect the teeth subsequent to normal development.9
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