The term "diastema" is used to describe open spaces between the upper incisors (front teeth). Diastemas are created by a disproportionate sizes of teeth and jaw. Occasionally, the pulling action of a labial frenulum that inserts too closely to the upper central incisors can push the teeth apart creating a "central diastema".
Diastemas are often closed by orthodontic alignment of the teeth into contact. However, often simply small and unattractive teeth go hand in hand with open spaces. The smile looks "timid". The treatment of choice would be to increase the size of the teeth by placing veneers on top of them closing the diastemas at the same time. The ensuing smile is more vivid and healthy. The teeth appear whiter and more appealing. This is the task of cosmetic dentistry.
Another example of a smile makeover for small teeth with diastemas demonstrates the value of porcelain veneers when treating such conditions.