Dental crown lengthening procedure
For functional purposes:
Large restorations can have negative effects on the health of your gums and tooth supporting bone and this procedure enhances gum health by allowing the dentist to place a properly contoured restoration that does not impinge on the gum and bone tissue. If your tooth is decayed or broken below the gum line, it is difficult for your dentist to place a properly fitting crown. If a crown or filling is placed too far below the gum line, damage can occur to the gum and bone tissue. To prevent this, and to allow your dentist to place a nicely sealed restoration and optimize your oral health, crown lengthening is often recommended.
After a small collar of gum and bone tissue is removed from around the tooth, the remaining healthy gum tissue is pushed closer to the new bone level exposing more of the tooth above the level of the gum. Some side effects of this procedure include longer teeth, root exposure, tooth sensitivity (usually of short duration) and increased spaces between the teeth. You will be left with a healthy situation that is easy to maintain and is more predictable long term than to place inadequate restorations.
For esthetic purposes:
You may have asked your periodontist about procedures to improve a “gummy” smile because your teeth appear short. Your teeth may actually be the proper lengths, but they’re covered with too much gum tissue. To correct this, your periodontist performs a dental crown lengthening procedure.
During the dental crown lengthening procedure, excess gum and bone tissue is reshaped to expose more of the natural tooth. This can be done to one tooth, to even your gum line, or to several teeth to expose a natural, broad smile.