Crown lengthening is a periodontal procedure that exposes more of a natural tooth by carefully reshaping the gum tissue and, in some cases, a small amount of the supporting bone. Despite its name, the procedure does not actually make the tooth longer—it reveals additional tooth structure that was previously covered by the gums.
Crown lengthening is commonly performed when decay, a fracture, or an existing restoration extends beneath the gumline and additional tooth structure is needed for restorative treatment. It can also be used in selected cases to reshape an uneven or excessive gumline for aesthetic purposes.
Whether crown lengthening is recommended depends on the condition of the tooth, location of the damage, surrounding bone and gum tissue, and type of restoration planned.
The procedure may be considered when:
A comprehensive evaluation allows us to determine whether crown lengthening or another approach will provide the best foundation for treatment.
Although the procedure itself is similar, the reason for crown lengthening can vary considerably. Understanding the treatment goal helps determine how much tissue needs to be reshaped and how the procedure fits into your overall dental plan.
Additional tooth structure may need to be exposed so a crown or other restoration can be properly positioned and supported.
When a cavity extends beneath the gums, crown lengthening can provide access to the affected area so the tooth can be treated and restored.
If damage extends close to or below the gumline, exposing additional healthy tooth structure may make restorative treatment possible.
For selected patients, crown lengthening can remove or reposition excess gum tissue to create more balanced proportions between the teeth and gums.
Some tenderness, swelling, or minor sensitivity is normal following crown lengthening and typically improves as the tissues heal. We’ll provide personalized instructions for cleaning the treatment area, eating comfortably, and protecting the surgical site during recovery.
The gum tissue will continue to change and mature after the initial healing period. If the procedure was performed in preparation for a crown or another restoration, your doctor will determine when the tissues are sufficiently healed and stable to proceed with the final restorative treatment.
A dental crown needs enough healthy tooth structure above the gumline to provide appropriate support and allow the restoration to fit properly. If decay, a fracture, or previous dental work extends too far beneath the gums, crown lengthening may expose additional healthy tooth structure so the tooth can be predictably restored.
Crown lengthening does not physically lengthen the tooth. Instead, gum tissue—and sometimes a small amount of supporting bone—is reshaped to expose more of the natural tooth that was previously below the gumline.
Initial healing occurs during the weeks following treatment, but the gum tissue can continue to mature and stabilize beyond that period. The timeline varies depending on the extent of treatment, location, and whether bone was reshaped. We’ll determine when the area is ready for any planned final restoration.
No. Crown lengthening is frequently performed for restorative reasons, such as exposing healthy tooth structure needed to treat decay or support a crown. It can also be used for aesthetic gumline reshaping when excess gum tissue affects the proportions or symmetry of the smile.
