A gap between two teeth - medically known as diastema - is a naturally occurring dental condition. Gaps in teeth can exist anywhere in the mouth but are most noticeable in the front teeth.

Gaps in teeth are most commonly caused by a difference between jaw and tooth size. Permanent teeth that are too small for the jaw bone may have excess space in the mouth, leading to gaps in the smile. Excess tissue between the gums and teeth can also cause a gap between the teeth (especially in the front of the mouth).

Certain dental problems, such as thumb sucking or gum disease, can also lead to gap teeth. The pressure from thumb sucking in infants can result in the front teeth being pushed forward, leading to a gap. Additionally, gum disease can rot away tissue between teeth, leading to tooth loss or gaps in teeth.

Unless a gap in the teeth is caused by an underlying condition, such as gum disease, treatment is entirely elective. Gap teeth produce no symptoms and may cause little to no discomfort. In many cases, it’s a personal decision based on appearance preferences.