Crown lengthening is indicated where the crown is short clinically or anatomically compromising esthetics and support a crown or any dental procedure when indicated. 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 a single tooth, to even your gum line, or to several teeth to expose a natural and wide smile.
D4249: The CDT 2009-10 list the procedure D4249 clinical crown lengthening—hard tissue where the bone is reshaped to expose the crown of the tooth.
D4230: Anatomical crown exposure - four or more contiguous teeth per quadrant by reshaping the soft and hard tissue
D4231: Anatomical crown exposure - one to three teeth per quadrant by reshaping soft and hard tissue.