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THE LUMI BLOG

Lip Repositioning Surgery for a Gummy Smile: How It Works, Who Suits It and Alternatives

Lip repositioning surgery can reduce gum display when an upper lip lifts too high. Learn who it may suit, how recovery works, the risks and the alternatives.

Dr James Tran, dentist at Lumi Dental Melrose Park

Dr James Tran

October 4, 2026 · Cosmetic Dentistry · 8 min read

Lip repositioning surgery for a gummy smile is a procedure that limits how high the upper lip can lift, so less gum shows when you smile. It suits some people whose gum display comes from an upper lip that moves a lot, but it is not the right answer for every gummy smile. If you are researching lip repositioning surgery for a gummy smile in Sydney, this guide explains how it works, who it may suit, what recovery involves and which alternatives are worth knowing about.

Key Takeaways

  • Lip repositioning removes a thin strip of tissue inside the upper lip so the lip sits in a higher-attached position and cannot lift as far.
  • It typically suits a hypermobile upper lip with teeth of normal length. It is not designed for excess vertical jaw growth or short teeth.
  • Recovery is roughly 1 to 2 weeks, with swelling, tightness and a soft diet.
  • Risks can include relapse over time, swelling, numbness and asymmetry, and results are never guaranteed.
  • It is usually performed by a periodontist or oral surgeon. The team at Lumi Dental assesses your smile and refers when appropriate.
  • Gum contouring, crown lengthening, Botox, orthodontics and jaw surgery are all alternatives depending on the cause.

What Is a Gummy Smile?

A gummy smile is usually described as showing a generous band of gum above the upper teeth when you smile. Some people are comfortable with that. Others feel self-conscious and would like to talk about options.

The cause matters far more than the appearance. In my experience, gum display tends to come from one or a mix of these factors:

  • An upper lip that lifts higher than average (a hypermobile lip).
  • Teeth that look short because gum tissue has grown over part of the crown.
  • Upper jaw bone that has grown long in the vertical direction.
  • Small or worn teeth that make the gum look more prominent.

Each cause needs a different approach, which is why a proper assessment comes before any decision about surgery. You can read a broader overview in our guide to gummy smile causes and treatment.

How Lip Repositioning Surgery Works

The procedure is performed under local anaesthetic. A thin strip of mucosa is removed from the vestibule, which is the fold of tissue between the upper lip and the gum. The lip is then sutured to a higher position along that line. Once healed, the lip is held by a shorter, tighter attachment, which limits how far it can lift when you smile.

Nothing is changed on the teeth themselves, and the incision sits inside the mouth, so it is not visible from the outside. The dentist or surgeon will explain the planned amount of tissue removal during your consultation, because that amount influences how much the smile may change.

Who performs it

Lip repositioning is usually performed by a periodontist or an oral surgeon, because it involves careful soft tissue surgery. The team at Lumi Dental does not perform this procedure. We assess your smile, work out the likely cause of the gum display and, where lip repositioning looks suitable, refer you to an appropriate specialist. If you would like to understand how that process works, see how a dental referral works in Australia and our overview of dental specialists explained.

Dentist and patient discussing a smile assessment at Lumi Dental
The way the upper lip moves is one of the first things assessed.

Who May Be a Suitable Candidate

Lip repositioning may suit you when the main reason for gum display is a lip that lifts more than usual, and your teeth are of normal length once the gums are healthy. A simple way to picture it is that the teeth and gums are in proportion, but the lip travels too far.

It is typically not the right choice when:

  • The upper jaw has grown too long vertically. This usually needs orthodontic planning, sometimes combined with jaw surgery.
  • The teeth are short because gum tissue sits too far down the crowns. This is a gum level issue rather than a lip issue.
  • Gum disease or inflammation is not yet under control.

A clinical examination, photographs of your smile at rest and at full smile, and sometimes X-rays all help to identify which situation applies to you. A digital mock-up can also help you picture changes before committing, and our article on gum lift versus crown lengthening explains how that decision is made when the gums themselves are the cause.

Recovery and What to Expect

Most people describe the first few days as the most uncomfortable. Recovery is typically around 1 to 2 weeks, although individual healing varies, and the surgeon will give you written aftercare instructions.

  • Swelling: the upper lip and area around it can swell noticeably for several days.
  • Tightness: the lip often feels tight and moves differently while it heals, which can make smiling widely feel awkward at first.
  • Diet: a soft diet is usually recommended, with cutting food into small pieces and avoiding wide mouth opening.
  • Cleaning: gentle rinsing and careful brushing away from the surgical line, as directed.

Many people plan quieter days around social events and work while the swelling settles. Final shape is judged after healing is complete rather than in the first week.

Risks and Limitations

All surgery carries risk, and a good consultation includes a frank discussion of it. Possible issues include:

  • Relapse: the lip can gradually regain some movement over time, so the change may partly soften.
  • Swelling and bruising: usually temporary but sometimes more than expected.
  • Numbness or altered sensation: typically temporary around the lip.
  • Asymmetry: the left and right sides may heal slightly differently.

Outcomes cannot be guaranteed, and the amount of change differs between people. A specialist will talk through realistic expectations for your lip movement before you decide.

Dentist and patient talking in a consult room at Lumi Dental, Melrose Park
A consult is the place to talk through the cause of your gum display.

Alternatives to Lip Repositioning

Because gum display has several causes, there are several routes. The table below summarises the main options, and the best choice depends on your assessment.

OptionWhat it addressesThings to consider
Lip repositioningA hypermobile upper lipSurgical, specialist performed, some relapse possible
Gum contouring or crown lengtheningExcess gum tissue covering the teethSuits short looking teeth with normal jaw length
Botox into lip elevator musclesOver-active muscle movementTemporary, repeated treatments are typically needed
OrthodonticsTooth position and some bite related causesTakes longer, may be combined with other care
Orthognathic (jaw) surgeryExcess vertical growth of the upper jawLarger procedure, planned with a surgeon and orthodontist

Our guides to gingivectomy and gum reshaping and crown lengthening cover the gum based options in more detail, and our article on Botox in the jaw muscles explains how Botox is used more generally.

Common Questions

Does lip repositioning surgery fix a gummy smile permanently?

It can reduce gum display for many people, but it is not guaranteed to be permanent. The lip can regain some movement over time, which is why relapse is a recognised risk.

How long does recovery take after lip repositioning?

Recovery is typically around 1 to 2 weeks for the main swelling and tightness to settle. Healing varies between people, and your surgeon will give specific aftercare advice.

Who performs lip repositioning surgery in Sydney?

It is usually performed by a periodontist or oral surgeon. Lumi Dental assesses your smile and refers you when lip repositioning looks suitable.

Is lip repositioning suitable for everyone with a gummy smile?

No. It typically suits a hypermobile upper lip with normal length teeth, and it is not designed for excess vertical jaw growth or short teeth, which need different care.

What is the difference between lip repositioning and crown lengthening?

Lip repositioning limits how far the lip lifts, while crown lengthening reshapes gum and sometimes bone around the teeth. They address different causes of gum display.

How much does lip repositioning cost?

Costs vary between specialists and depend on the extent of treatment, so a fair figure can only be given after assessment. A written quote from the treating specialist is the best guide.

Talk Through Your Options at Lumi Dental

If you are unsure whether lip repositioning, gum reshaping or another approach fits your smile, the first step is working out the cause. The team at Lumi Dental in Melrose Park, Sydney, can examine your smile, explain the options in plain language and arrange a referral if surgery looks suitable. You are welcome to book a free cosmetic consult and receive a written quote for any care we provide. You can also read more about cosmetic dentistry at Lumi Dental.

This article is general education only and is not a substitute for personal dental or medical advice.

Dr James Tran — Lumi Dental, Melrose Park

Written by Dr James Tran

Dr James Tran (BDS, University of Sydney) leads the clinical team at Lumi Dental in Melrose Park, working alongside Dr Audrey Yee, Dr Minh Thu Cao Xuan and Dr Anita To. The team is committed to clear, evidence-based dental information to help you make informed decisions about your care.

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