Cosmetic dentistry may involve:
The addition of a dental material to teeth or gums – examples: bonding, porcelain veneers (laminates), crowns (caps), gum grafts.
The removal of tooth structure or gums – examples: enameloplasty, gingivectomy.
Neither adding nor removing dental materials, tooth structure or gums – examples: teeth whitening (bleaching).
Straightening of teeth accompanied by improvement in facial appearance - Orthodontics.