Excess gum and bone tissue are reshaped to expose more of the natural tooth. This can be done to one tooth, to the gumline, or to several teeth to expose a natural, broad smile. Dr. Afar may also recommend crown lengthening to make a restorative or cosmetic dental procedure possible – perhaps if a tooth is decayed, broken below the gumline, or has insufficient tooth structure for a restoration, such as a crown or bridge. CL adjusts the gum and bone level to expose more of the tooth so it can be restored.