Crown lengthening is a dental procedure that removes gum tissue and sometimes bone to expose more of a tooth’s surface. It is most often done to prepare a tooth for a crown or to fix a “gummy” smile. The procedure is common, generally safe, and the cost varies widely depending on the number of teeth treated and the complexity of the case.
Why Would You Need Crown Lengthening?
There are two main reasons a dentist recommends crown lengthening. The first is functional. If a tooth is decayed, broken, or worn down below the gum line, there may not be enough tooth structure above the gum to hold a crown securely. The dentist needs to expose more of the tooth so the new crown can grip it properly.
The second reason is cosmetic. Some people have a “gummy smile,” where the gums cover too much of the teeth. Crown lengthening reshapes the gum line to make the teeth look longer and more balanced. This is sometimes called aesthetic crown lengthening.
In both cases, the goal is the same: expose more of the tooth’s natural crown. The difference is whether the procedure is medically necessary or done for appearance.
What Happens During the Procedure
Crown lengthening is performed by a dentist or a periodontist, a specialist in gum surgery. The procedure usually takes about one to two hours, depending on how many teeth are involved.
First, the dentist numbs the area with a local anesthetic. You are awake during the procedure but feel no pain. The dentist then makes small cuts in the gum tissue to peel it back from the tooth. This exposes the root and the bone underneath.
If the bone is too close to the edge of the tooth, the dentist will use a small instrument to reshape or remove a small amount of bone. This step is critical. If the bone is not adjusted, the gum will simply grow back to its original position after healing.
Once the bone and tooth are shaped correctly, the dentist repositions the gum tissue and places stitches. The stitches typically dissolve on their own within one to two weeks.
What Is the Recovery Like?
Recovery from crown lengthening is usually manageable but not painless. Most people experience some swelling and discomfort for the first few days. Over-the-counter pain relievers like ibuprofen are usually enough to control the pain.
You will need to eat soft foods for the first week. Avoid anything hard, crunchy, or spicy that could irritate the surgical site. Cold foods like yogurt and smoothies can help soothe the area.
Swelling typically peaks at 48 to 72 hours after surgery and then begins to subside. Most people can return to work the next day, though if your job involves a lot of talking or physical activity, you may want to take a day or two off.
Complete healing of the gum tissue takes about four to six weeks. However, the final shape of the gum line may continue to change for several months. If you are having a crown placed, you will usually need to wait four to six weeks after surgery before the final crown can be fitted.
What Are the Risks and Complications?
Crown lengthening is a low-risk procedure, but it is surgery. Complications are uncommon but possible.
The most common side effects are temporary. These include swelling, bleeding, and mild discomfort. Some people also notice increased tooth sensitivity to hot and cold, especially if the tooth root was exposed during the procedure. This sensitivity usually fades over a few weeks.
More significant risks include:
- Infection at the surgical site. This is rare but can happen if proper oral hygiene is not maintained during healing.
- Gum recession. The gum line may settle lower than expected after healing. This can make the tooth look longer than intended.
- Bone loss. Removing bone during the procedure can, in rare cases, affect the long-term stability of the tooth.
- Periodontal pocket formation. If the gum reattaches too high or too low, it can create spaces where bacteria collect.
One risk that is not often discussed is the impact on the tooth’s support. Removing bone reduces the amount of tissue holding the tooth in place. For most people, this is not a problem because the tooth retains enough support. But if the tooth already had significant bone loss from gum disease, the additional removal could compromise it.
Smoking increases the risk of complications. Nicotine reduces blood flow to the gums, which slows healing and increases the chance of infection. If you smoke, your dentist may recommend stopping before the procedure.
How Much Does Crown Lengthening Cost?
The cost of crown lengthening varies significantly. The final price depends on the number of teeth treated, the complexity of the case, your geographic location, and whether a general dentist or a specialist performs the procedure.
A single tooth typically costs between $500 and $1,500. If multiple teeth are treated, the cost per tooth often decreases slightly, but the total will be higher. For a full cosmetic case involving several front teeth, the cost can range from $3,000 to $10,000 or more.
Dental insurance rarely covers crown lengthening when it is done for cosmetic reasons. When the procedure is done to prepare a tooth for a crown, insurance may cover part of the cost. However, many plans classify crown lengthening as a periodontal procedure with partial coverage, meaning you may still pay a significant portion out of pocket.
It is important to ask for a written treatment plan and cost estimate before scheduling. The estimate should include the surgeon’s fee, the facility fee if any, anesthesia, and any follow-up visits.
Does Insurance Cover It?
Insurance coverage depends entirely on why the procedure is being done. If the crown lengthening is necessary to restore a decayed or broken tooth, it is more likely to be covered. This is considered medically necessary because the tooth cannot be properly restored without it.
If the procedure is purely cosmetic, such as fixing a gummy smile, insurance will not cover it. You will pay the full cost yourself.
Even when the procedure is medically necessary, insurance may not pay the entire bill. Many dental plans cover only a percentage of periodontal procedures. You should contact your insurance provider directly to confirm your specific coverage before the procedure.
Are There Alternatives to Crown Lengthening?
For functional cases, the main alternative is to extract the tooth and replace it with an implant or bridge. This is a more invasive and expensive option, so most dentists try to save the natural tooth with crown lengthening when possible.
For cosmetic cases, alternatives include orthodontic treatment to move the tooth and gum line, or Botox injections to relax the upper lip so less gum shows when you smile. These options do not involve surgery but may not produce the same lasting results.
Another option for cosmetic cases is a procedure called gingivectomy, which removes only excess gum tissue without touching the bone. This is less invasive than crown lengthening but only works if the underlying bone is in the correct position.
Is Crown Lengthening Worth It?
For a tooth that cannot be restored without the procedure, crown lengthening is often the difference between saving and losing the tooth. In that context, it is clearly worth considering.
For cosmetic purposes, the decision is more personal. The procedure is safe, and most people are satisfied with the results. But it is surgery, and the results are permanent. Once gum tissue and bone are removed, they do not grow back.
Before deciding, ask your dentist to show you what the expected result will look like. Many dentists can use digital imaging to simulate the outcome. This gives you a realistic preview before you commit to surgery.
Frequently Asked Questions
Is crown lengthening painful?
You will not feel pain during the procedure because of the local anesthetic. After the numbing wears off, most people experience moderate discomfort and swelling for a few days, which is usually managed with over-the-counter pain relievers.
How long does crown lengthening last?
The results are permanent because the removed gum and bone tissue does not grow back. However, the final shape of the gum line can continue to settle for several months after healing.
Can crown lengthening cause tooth loss?
It is rare, but possible if the tooth already had significant bone loss before surgery. Removing additional bone during the procedure can weaken the tooth’s support, which is why your dentist will evaluate bone levels carefully before recommending the procedure.
How long after crown lengthening can I get my crown?
You usually need to wait four to six weeks for the gum tissue to heal before the final crown can be placed. In some cases, your dentist may place a temporary crown during the healing period.

