The gap between the two teeth is known as a diastema. Although it can appear anywhere in the mouth, it most commonly occurs between the two front teeth. The American Dental Association (ADA) says that between 1.6 and 25.4 percent of American adults have gaps in their front teeth. While this gap can be disturbing, it is pretty much a treatable issue. Dentists generally use dental bonding to cover this gap.

What is dental bonding?
Dental bonding is a procedure of the application of the composite resin over the surface of teeth to change their appearance. Your dentist may treat the gap between your front teeth by sculpting this resin in that area. The purpose of this procedure is to give your front teeth a more desirable shape.
This fairly simple procedure doesn’t usually require more than one dental visit. First, the dentist will refer to a shade guide to select the color that matches your teeth. By using this shade guide as a reference, he will prepare resin of the color that of your teeth. Then, he will prepare your teeth by etching the surface and applying a solution that allows your teeth to get hold of the resin. He will apply the composite resin and mold it to give it the desired shape. The putty-like consistency of the composite resin allows the dentist to shape it in a way that complements your smile.
After the application of the composite resin, the dentist will use ultraviolet light to harden it. Once the material hardens, the dentist will remove the excess bonding material and polish the surface to give it a teeth-like shape and finish. The material used in the polish also prevents irritation on your lips.

Who are good candidates for this procedure?
Although some people willing to get the gaps between their front teeth covered may benefit from dental bonding, it is worth mentioning that the ultimate solution for this issue is orthodontic treatment. According to the National Institutes of Health (NIH), many patients with gaps in their front teeth do not benefit from the bonding alone. Other problems, such as crowded or crooked teeth, along with the dental gap may necessitate you to undergo an orthodontic procedure.
Orthodontic treatment may not be necessary if you have no issue other than the gap between your front teeth. The doctor will make sure that you are the right candidate for this procedure.
Is it right for you?
Even if you have a gap between your front teeth, the dentist will consider a few things before performing the procedure. For instance, your dentist will ask about your oral habits. A few dental habits may make dental bonding a less viable option.
For instance, you may not want to get dental bonding if you cannot let go of the smoking habit. A bonded surface is usually porous, which can attract stains from cigarette smoke. It can stain the surface very quickly. You may want to get dental veneers if you are concerned about staining.
You can discuss with your dentist whether or not this procedure is right for you.