Crown lengthening is a periodontal procedure that removes gum tissue and sometimes a small amount of supporting bone to expose more of a tooth’s structure. It’s used when a tooth doesn’t have enough visible surface for a crown to grip, and also to improve the appearance of a gummy smile by creating better proportion between the teeth and gumline.
Key Takeaways
Crown lengthening exposes more of the tooth by reshaping the gumline. It has both a functional purpose (preparing a tooth for a crown) and a cosmetic one (treating a gummy smile).
It’s a procedure that serves two very different groups of patients. Understanding which category you fall into helps make sense of why it’s being recommended.
The Two Reasons Crown Lengthening Is Done
Functional crown lengthening is performed when a tooth needs a crown or another restoration but doesn’t have enough structure visible above the gumline for the restoration to grip securely. This happens when decay extends below the gum, a tooth fractures at the gumline, or the tooth’s anatomy naturally provides limited visible height. Removing gum tissue exposes the tooth structure the crown needs to anchor to.
Cosmetic crown lengthening is performed when the gums cover too much of the tooth’s visible surface, making the smile appear gummy or the teeth look short. Recontouring the gumline exposes more tooth and creates better proportion. This is often done across several teeth at once to create a balanced, even result.
What the Procedure Involves
Crown lengthening is done in the dental office under local anesthetic. The periodontist or oral surgeon makes small incisions to access the gum and bone. Tissue is removed to the desired level. When bone is involved, a small amount is reshaped to establish the correct biological distance between the bone and gumline. The area is sutured. A two-week follow-up confirms healing.
For functional cases, the crown is typically placed six to eight weeks after the procedure, once the gum tissue has fully settled at its new level. Placing the crown sooner risks the gumline shifting back up as it heals.
Is Crown Lengthening Uncomfortable?
The procedure is performed under local anesthetic. Mild tenderness in the treated area for a few days after is typical. Over-the-counter ibuprofen taken as directed manages it for most patients. Soft foods for several days, avoiding chewing in the treated area, and gentle rinsing with warm salt water support healing.
What to Expect During Recovery
Most patients return to normal activities within a few days. The gum tissue heals over one to two weeks. Mild swelling and some sensitivity to temperature in the first few days are normal.
If the procedure was functional, the crown preparation appointment comes six to eight weeks later. If it was cosmetic, the improved appearance is visible as soon as the healing is complete.
If you’ve been told you need crown lengthening before a crown, or if you want to discuss a gummy smile, schedule a consultation with our team at Image Dental in Stockton. We handle both functional and cosmetic crown lengthening in-house.
