A gum lift and crown lengthening can look like the same procedure, because both reshape the gum around a tooth, but they exist for different reasons. A gum lift is mainly cosmetic, trimming and contouring the gum to make teeth look longer or more even. Crown lengthening is mainly functional, removing gum and sometimes a little bone to expose more tooth so a filling or crown can be done properly. Knowing which job you need is the key to choosing the right one.
Key takeaways
- A gum lift is cosmetic: it reshapes the gum line to improve how the smile looks.
- Crown lengthening is functional: it exposes more tooth so a filling or crown has something to hold onto.
- The two often use similar techniques, but the goal and the amount of tissue removed differ.
- The right choice depends on whether the issue is appearance or access for restoring a tooth.
The one question that decides it: looks or function?
The simplest way to tell these apart is to ask what problem you are solving. If the concern is purely how the smile looks, such as a gummy smile or uneven gum heights, that points to a gum lift. If a dentist needs more tooth showing to place a filling, fit a crown, or reach decay that sits below the gum, that is crown lengthening. The same tools can be involved, but the purpose changes what is done and how much is removed.
What a gum lift involves
A gum lift, also called gingival contouring or a gum reshape, removes a small amount of excess gum and refines the gum line, often with a soft-tissue laser or fine instruments. It is commonly used for a gummy smile where too much gum shows, or to even up teeth that look different lengths. Healing is usually quick, and because it is shaping soft tissue only, discomfort tends to be mild. It is often combined with bonding or veneers when the aim is a wider smile change.
What crown lengthening involves
Crown lengthening removes gum and frequently a small amount of the underlying bone to expose more of the natural tooth. It is needed when a tooth is broken or decayed close to or below the gum line, when there is not enough tooth for a crown to grip, or when a filling would otherwise sit too deep. Because bone is often reshaped, it is a slightly bigger procedure than a cosmetic gum lift, and the gum needs time to settle before the final crown is fitted, often several weeks.
| Feature | Gum lift | Crown lengthening |
|---|---|---|
| Main purpose | Cosmetic, improve appearance | Functional, expose more tooth |
| Tissue removed | Gum only, usually small amount | Gum and often some bone |
| Common reason | Gummy smile, uneven gum line | Broken or decayed tooth, room for a crown |
| Healing before next step | Days to a couple of weeks | Often several weeks if bone is reshaped |
| Typical pairing | Veneers, bonding, whitening | Filling, crown, root canal tooth |
Are there risks?
Both are routine procedures, but as with any treatment there are things to weigh. Removing gum exposes a little more tooth, which can cause short-term sensitivity. Taking away too much gum for looks alone can make teeth appear long or expose root surfaces, so a conservative, planned approach matters. For crown lengthening, the gum and bone need to keep a healthy relationship to the tooth, which is why a dentist measures carefully rather than simply trimming. If your gums already sit low, our guide to gum recession and grafting covers the opposite problem.
Which one is right for you?
If your only concern is a gummy smile or an uneven gum line and the teeth themselves are healthy, a gum lift is usually the answer. If a tooth is broken, decayed below the gum, or simply does not have enough structure showing for a crown, crown lengthening is the functional fix that makes the restoration possible. Many people have one without ever needing the other, and a dentist can tell you which applies after an examination.
General cost and what to expect
Costs vary with how much tissue is reshaped, whether bone is involved, and what restoration follows. Because of this we do not list our own prices here. You can see current options on our deals and pricing page, and a written quote can be prepared at a consultation.
Frequently asked questions
Is a gum lift permanent?
The reshaped gum line is generally stable, especially when only soft tissue is adjusted. Gum health and habits still matter, and significant changes can occur if gum disease develops later.
Does crown lengthening hurt?
It is done under local anaesthetic so you should not feel pain during the procedure. Mild soreness for a few days afterwards is normal and is usually managed with simple pain relief.
Can a laser do both?
A soft-tissue laser is often used for gum lifts and for crown lengthening that involves gum only. When bone needs reshaping, additional surgical steps are usually required.
Will my gums grow back?
Gum tissue can rebound slightly after reshaping, particularly when no bone is altered. A dentist plans for this, and the result is usually stable once healing is complete.
Is a gum lift the same as treating a gummy smile?
It is one of the tools for a gummy smile, but not the only one. Some gummy smiles are better treated by addressing the lip or jaw, which our gummy smile guide explains.
When to see a dentist
If you are unhappy with how much gum shows when you smile, or a dentist has told you a tooth needs more length before a crown, an assessment will clarify which procedure fits. The team at Lumi Dental can examine your gums and teeth and explain the options. Book through our contact page.
This article is general information and is not a substitute for individual advice. A dentist can recommend the right approach after examining you.
