When decay occurs below the gumline, it may be necessary to remove a small amount of bone and gum tissue. Your dentist may ask for this procedure before he or she makes a new crown for your tooth.
Crown lengthening procedures are done for both restorative dentistry and/or to improve the aesthetics of your gum line. General practitioners often refer to crown lengthening procedures prior to restoration of broken or severely decayed teeth. This procedure adjusts the gum and bone level to expose more of the tooth so it can be restored.