Dentists use the term “diastema” to refer to any space (gap) that lies between two teeth. From a standpoint of function and dental health, these types of gap-toothed situations do not pose a problem. In regards to cosmetic appearances, however, some people find them unappealing.
Tooth bonding provides one way a dentist can “close” (fill in) a diastema. Dental bonding can be placed on the two teeth that lie on each side of the gap so to reduce the gap’s overall width. Depending on its original size, a dentist and patient might decide to fill in a diastema just partially or else close it all of the way.
It could be possible that a diastema might be closed by way of placing porcelain veneers rather than dental bonding. For the most part, the same advantages and disadvantages weighed when making a decision between porcelain veneers and composite veneers should be considered when deciding how to close a diastema.