Clinical Crown Lengthening:

If you have a fractured or decayed tooth , an insufficient amount of your own natural tooth is visible for the dentist to repair or restore the tooth. Crown lengthening procedure  corrects this condition by exposing more of your natural tooth surface for proper restorative treatment. It is essential to have an adequate "biologic width" between the gingiva and the tooth for the placement of a crown. This procedure often makes a restorative or cosmetic treatment possible.