Featured Specialist: Dr. Mitchell Gubler
Crown lengthening is a periodontal procedure that adjusts the position of gum tissue, and sometimes underlying bone, to expose more of your natural tooth structure. It’s done for two main reasons: to improve the appearance of a “gummy” smile or uneven gumline, or to expose enough healthy tooth structure so a crown, filling, or other restoration can be placed properly. Whether you need it depends on your specific gum-to-tooth proportions and any restorative work you’re planning.
What Is Crown Lengthening, Exactly?
Every tooth has a certain amount of structure above the bone that supports it, and part of that structure is normally covered by gum tissue. Crown lengthening reshapes that gum tissue — and, in some cases, a small amount of the underlying bone — to reveal more of the tooth underneath. The goal is either a more balanced, proportionate gumline for cosmetic purposes, or enough exposed, healthy tooth structure for a dentist to work with when placing a restoration.
This is a periodontal surgical procedure, meaning it’s performed by a periodontist rather than through non-surgical treatment. The amount of tissue and bone adjusted, and whether one tooth or several are involved, depends entirely on what your specific case requires.
Why Is Crown Lengthening Done?
Patients are typically referred for crown lengthening for one of two distinct reasons, and understanding which one applies to you helps clarify what to expect from the procedure.
Cosmetic crown lengthening
Some patients have a “gummy smile,” where a larger-than-average amount of gum tissue is visible when they smile, making the teeth look shorter than they actually are. Others have an uneven or low gumline across several teeth. Cosmetic crown lengthening reshapes the gum tissue to create a more even, proportionate gumline and reveal more of the natural tooth, improving the balance of the smile.
Functional or restorative crown lengthening
The more common clinical reason for crown lengthening is restorative. When a tooth is broken, decayed, or fractured at or below the gumline, or when there simply isn’t enough healthy tooth structure exposed above the gum, a dentist may not be able to properly place a crown or filling. Crown lengthening exposes additional healthy tooth structure so a restoration has a stable, well-sealed foundation, which helps it fit properly and last as intended.
| Consideration | Cosmetic Crown Lengthening | Functional/Restorative Crown Lengthening |
|---|---|---|
| Main goal | A more even, balanced gumline and smile appearance | Enough exposed tooth structure to support a crown or filling |
| Typically involves | Several teeth across the smile, often the upper front teeth | Usually one specific tooth needing restorative treatment |
| Who’s involved | Periodontist, sometimes with input from a cosmetic dentist | Periodontist for the surgery, general dentist for the restoration |
| Insurance considerations | Often treated as elective/cosmetic by insurance plans | More likely to be considered medically necessary |
How Do You Know If You Need Crown Lengthening?
Crown lengthening isn’t something most patients diagnose on their own — it’s usually identified during a routine exam, a restorative consultation, or a conversation about the appearance of your smile. That said, a few common situations tend to prompt the conversation:
- Your dentist can’t get a proper impression or seal for a crown: If a tooth is broken or decayed near or below the gumline, there may not be enough exposed structure for a restoration to fit correctly.
- A tooth keeps losing crowns or fillings: Restorations that repeatedly come loose or fail can be a sign that there isn’t enough tooth structure above the gum for a stable fit.
- You feel self-conscious about a gummy smile: If you feel like your teeth look short or your gums are more visible than you’d like when you smile, cosmetic crown lengthening may be an option worth discussing.
- Your gumline looks uneven across several teeth: Some patients have one or two teeth that sit lower or higher than the rest, which crown lengthening can help even out.
In each of these cases, your general dentist will typically refer you to a periodontist for an evaluation of your gum and bone levels before recommending crown lengthening as the right solution.
What Happens on the Day of the Procedure?
Crown lengthening is generally performed as an outpatient procedure using local anesthesia, with sedation options available for patients who prefer additional comfort. During the appointment, your periodontist adjusts the gum tissue — and if needed, a small amount of the underlying bone — around the tooth or teeth involved to achieve the necessary exposure. The area is then closed, and you’re given specific aftercare instructions before heading home the same day. Because Dr. Gubler is licensed in IV sedation and ACLS certified, patients who want that option can discuss it as part of their treatment plan.
Before the procedure, your periodontist will also review your dental history and imaging to plan exactly how much tissue and bone need to be adjusted. Southwest Oral Surgical Arts uses in-house cone beam CT (CBCT) 3D imaging, which allows the surgical team to see the bone level around the tooth in detail and plan the procedure precisely, without requiring a separate imaging appointment elsewhere.
What Is Recovery Like After Crown Lengthening?
Recovery after crown lengthening is generally consistent with other minor periodontal surgical procedures. In the days following treatment, it’s common to experience some swelling, tenderness, and mild sensitivity around the treated teeth. Most patients are advised to stick to a soft diet initially, avoid vigorous rinsing or brushing directly on the surgical site, and follow any prescribed rinses or medications to support healing.
Healing time varies depending on how much tissue and bone were adjusted and how many teeth were involved, but initial healing typically progresses over the first one to two weeks, with complete tissue maturation taking longer. Your periodontist will let you know when the site has healed enough for any planned restorative work to move forward, since starting too early can affect the fit and longevity of a crown or filling.
How Does Crown Lengthening Work With Your Dentist?
Crown lengthening is often a two-part process split between a periodontist and a general dentist, similar to how the surgical and restorative phases of dental implant treatment are typically divided between providers. Our periodontal team performs the surgical portion — reshaping the gum tissue and bone to expose the necessary tooth structure — and once the area has healed sufficiently, your regular dentist completes the restorative work, such as placing the crown or filling.
This handoff is a normal and well-established part of restorative dental care. Coordinating between your periodontist and your general dentist ensures the timing of your restoration lines up with proper healing, so the final result is both functional and durable. If gum recession is also a factor in your case, it may be evaluated separately — our related guide on receding gums and gum grafting covers when additional soft tissue treatment might be recommended alongside or instead of crown lengthening.
Benefits of Crown Lengthening
What can crown lengthening improve?
- A more proportionate smile: Reshaping an uneven or excessive gumline can make teeth look longer and more balanced, contributing to a healthy, confident, beautiful smile.
- A stable foundation for restorations: Exposing enough healthy tooth structure allows your dentist to place a crown or filling that fits and seals properly.
- Better long-term outcomes for damaged teeth: Teeth that are broken or decayed at the gumline can often be preserved and restored, rather than requiring extraction, once enough structure is exposed.
- Improved access for oral hygiene: A properly contoured gumline around a restoration can make it easier to keep the area clean, supporting the health of the surrounding gum tissue.
If you have a gummy smile that bothers you, or your dentist has mentioned that a tooth needs more exposed structure before a crown or filling can be placed, crown lengthening may be part of the solution. Our board certified periodontist can evaluate your gum tissue and tooth structure to determine whether this procedure is right for your situation. Schedule a consultation to discuss your options and how crown lengthening might fit into your overall dental care.
Frequently Asked Questions
Is crown lengthening painful?
The procedure itself is performed under local anesthesia, so it is not painful while being done. Afterward, some swelling and tenderness are common for a few days, similar to recovery from other minor periodontal surgical procedures, and are generally manageable with your periodontist’s aftercare guidance.
How long until my dentist can place the crown after crown lengthening?
Your periodontist will need to see adequate healing before restorative work begins, and the exact timeline depends on how much tissue and bone were adjusted. Your dentist and periodontal team will coordinate to make sure the crown or filling isn’t placed before the area is ready.
Is crown lengthening purely cosmetic?
No. While crown lengthening can be performed for cosmetic reasons, such as correcting a gummy smile, it’s also commonly needed for functional purposes, such as exposing enough healthy tooth structure for a dentist to properly place a crown or filling. Your periodontist can tell you which purpose applies to your case.
Does insurance cover crown lengthening?
Coverage often depends on whether the procedure is being performed for a functional/restorative reason or a purely cosmetic one, as insurance plans typically treat these differently. Our team can help you understand your specific situation during a consultation.
Does crown lengthening affect nearby teeth?
Crown lengthening is typically planned to treat only the tooth or teeth that need it, though your periodontist will evaluate the surrounding gum tissue and bone to ensure the results look natural and blend with your overall smile. This is especially important in cosmetic cases involving more than one tooth.
Can crown lengthening be done on more than one tooth at a time?
Yes. Many cosmetic cases, such as correcting a gummy smile across the front teeth, involve reshaping the gum tissue around several teeth in the same procedure. Restorative cases are often limited to just the tooth requiring the restoration, but your periodontist will determine the right scope for your goals.
What’s the difference between crown lengthening and a gum lift?
“Gum lift” is often used as an informal, cosmetic-focused term for the same tissue-reshaping process involved in cosmetic crown lengthening. Clinically, they typically describe the same underlying periodontal procedure, though the term used may depend on whether the emphasis is on appearance or on preparing a tooth for restorative work.
