Missing of one or more teeth is perhaps our most common congenital malformation. Missing teeth is one of the most common developmental problems in children. More than 30 % of us lack one or more wisdom teeth (third molars). More than five percent of us lack one or more second premolars or upper second (lateral) incisors. Lack of a large amount of teeth, though, is much more rare.

The deficit is more delicate if exists in the frontal area, and can be solved also with bridges or with implants. Sometimes the canines can fill in the space of lateral incisors. Orthodontic appliances are the choice for opening or closing the space in this case.