When teeth are chipped or slightly decayed, composite resins may be the material of choice.  First, the tooth structure is cleaned and etched.  Then a clear adhesive is applied to the area needing bonding.  Once applied, a tooth colored bonding material is placed on the tooth.  It is permanently hardened and fused to the tooth with a curing light. Bonding makes a great tooth colored filling for small cavities and broken or chipped surfaces. This rebuilds the tooth to its original shape, and often makes it look even better !
Composite bonding is one of the most conservative, versatile and affordable ways to aesthetically restore a multitude of cosmetic problems. Bonding can repair fractured teeth or change the color of stained teeth.
 It can also be used to close spaces between teeth.  Additionally, it is used to cover the entire outside surface of a tooth to change its color and shape. 

Yes, there are some limitations. Although the treatment is conservative, it require slight grinding of tooth enamel. Also, bonded teeth and veneers are simply not as strong as the original tooth structure. Nail biting, hard food, and sports accidents can damage them. They must be maintained with good oral hygiene and regular dental visits.

Primary drawback of Bonding is that it must be repeated every 5 to 8 years because of stain and wear.However, improved bonding materials are constantly being developed and introduced in the dental market.