Removal of gum and/or bone for esthetics or to expose decay under the gums, make broken teeth longer or expose more tooth to retain a restoration or make gums healthier around existing restorations.
Crown lengthening is often recommended when restorations are needed where there is excess gum tissue causing an esthetic problem, decay has developed under the gums, teeth have broken off, teeth are short from severe wear, or sometimes when teeth are just too short to allow a new restoration to stay in place. It can also be indicated if gums bleed around deep restorations already in place which can cause a chronic gum tissue irritation or to improve the esthetic appearance of short or severely worn teeth in a cosmetic area. When completed, the procedure results in a tooth that is longer than before the procedure and gives the appearance that gum tissue has been removed. In reality, the position of the gumline is determined by the bone underneath, so crown lengthening involves pulling back the gums to gain access to the bone, which is reshaped until the gums sit at the desired position to create the needed tooth length.