Often, a gap forms between the teeth as a result of being born with a jaw that is too large for the teeth, or teeth that are too small for the jaw. “The most common reason for gaps is simply having a tooth size to jaw discrepancy,” White says.

Is it lucky to have a gap in your front teeth?

Myth: Having a gap between your front teeth is a sign of good luck. Some cultures believe gaps in teeth are lucky, but a gap between teeth, called diastema, is a common occurrence. Teeth gaps frequently occur in young children whose permanent teeth have not come in yet.

Is having a gap in your teeth bad?

Large gaps between teeth can cause bacterial growth and plaque build-up, leading to tooth decay or periodontal disease. Gaps can also cause trouble biting, chewing, or swallowing, and cause pain in your teeth or jaw. For these reasons, it's best to close gaps between your teeth.