Missing teeth usually occurs due to hereditary factors, ie. a parent or relative is missing teeth. Other reasons why teeth may be missing include their loss because of tooth decay, gum disease, or trauma.

In any case, missing teeth - especially if the affected area is towards the front of the mouth - can affect the way you smile and the appearance of your face, hence making you feel self-conscious. The location of the missing tooth or teeth will also affect the decision of whether the missing tooth is replaced, or the space closed with orthodontic treatment.