Natal and neonatal teeth.

Incidence, causes, complications, and treatment of natal and neonatal teeth are presented. It has been suggested that the terms mature and immature be added to the designation of this anomaly as those would imply the development and prognosis of the tooth and give clinical significance to the terms natal and neonatal. A case in a 2-week-old premature infant is described. As natal or neonatal teeth seldom develop properly and subsequent loss of space is not a long-term sequela, extraction is the preferred treatment.