Both the composite resin and bonding agent are perfectly safe, and provided these tooth coloured fillings are placed in a suitably prepared tooth, they will last a minimum of 5 to 8 years, depending on the size of the restoration, and how much tooth structure it replaces. The larger the restoration, the shorter the life span, and for larger restorations, a crown should be considered to fully restore the tooth to its original shape and function, and to protect it from fracture.
The shape and size of a tooth can be altered with white filling materials, and spaces between th e teeth can be closed.
