
At Ace Dental in Marylebone we offer crown lengthening and gum contouring to reveal more of your teeth and balance your smile.
Our experienced team serves patients from Central London, Soho and Paddington, using advanced techniques to create natural‑looking results.
Show more teeth and less gum
Tailored gum shape for a natural look
Treatment in under an hour
Precision lasers and digital scans
Spread the cost of your smile transformation
Gums are essential for keeping your teeth in place. But if you feel you show too much gum when you smile, this can lead to you feeling self‑conscious and lacking in confidence. You may even stop smiling altogether or put your hand in front of your mouth when you smile or laugh. However, there are effective dental treatments which can improve the appearance of gummy smiles.

There are several reasons why you may show more gum than you would like to when you smile. An overgrowth of gum tissue, caused by genetics could be covering up part of your teeth. It may be that your teeth are particularly small or your gums too large, leading to an aesthetic imbalance.
Gummy smiles tend to be more common in women than in men. Your dentist will carry out a thorough investigation to discover the causes of your gummy smile before recommending the best treatment for you.

There have been lots of studies and focus group work carried out with dentists, plastic surgeons and patients to assess what makes the perfect smile. Most agree that only around 2 mm of gum should be showing when you smile. Anything over 3 mm or 4 mm starts to look “gummy”. If you aren’t happy about the amount of gum on display when you smile or laugh, you may want to consider treatment to improve the aesthetic appearance of your smile.

Crown lengthening is sometimes used for patients who need to have more tooth exposed so that they can have a crown fitted; it can also be an effective way to treat a gummy smile.
Crown lengthening involves reshaping and contouring the gum line by removing gum with a laser or scalpel. The lift reveals more of your teeth for a better‑looking smile. A gum lift can be carried out on just one tooth, several, or your whole gum line. It all depends on the look you want to achieve.

A crown lengthening treatment is generally done under local anaesthetic and can take less than an hour, depending on the number of teeth to be treated. It’s a fast, effective way to get rid of gummy smiles.

It is recommended that you stay away from any hard or sticky foods for two to three days after treatment to give your gums and teeth time to settle. It is also not recommended to floss until your gums are healed. You may also find that your teeth are more sensitive to hot and cold for a period of time, but within a few weeks, you will find you are fully recovered and ready to show off your new smile.

As well as improving the look of a gummy smile, the procedure can also help to prevent or treat gum disease as a result of trimming back some of the gum so you can clean your gum line more effectively.

Every smile is unique, and your treatment is carefully planned around you. Here’s what to expect:
Arrange a no‑obligation appointment at our Marylebone practice to discuss your smile and goals.

We’ll examine your gums and teeth, take digital scans and plan your crown lengthening or gum contouring.
.webp)
Under local anaesthetic we gently reshape your gum line using lasers or precise instruments.

Follow our aftercare advice and allow your gums to heal over a few weeks while avoiding hard foods and flossing.

Once healed you’ll be able to smile confidently with more tooth and less gum on show.

A balanced smile can transform your confidence. Book your free consultation at our Marylebone clinic near Harley Street and take the first step to showing your smile with pride.

"I cannot recommend Ace Dental enough."
I cannot recommend Ace Dental enough. The process was flawless from the beginning, always around to answer any questions and concerns.And the results are perfect, has gone beyond my expectation.
"Truly amazing team who gave me tremendous confidence by giving me my much needed 'smile' back."
Truly amazing team who gave me tremendous confidence by giving me my much needed 'smile' back.I always think of them as the 'A Team'.
"I had dental treatment here and I found them all to be very helpful and professional."
I had dental treatment here and I found them all to be very helpful and professional. I was put at ease when I was contacted by Lindsey the day before my treatment. My Treatment was by Robert and my aftercare by Jamie was perfect I go back every year for my checks with Jamie and will continue to do so.
"Incredible service from my first appointment"
Incredible service from my first appointment, really happy with the results and would recommend to anyone thinking about getting their teeth improved. Amazing!

Gummy smiles are often due to genetics – you may have an overgrowth of gum tissue or small teeth. Our Marylebone dentists will assess the cause and recommend treatment suited to your situation.
By gently removing excess gum tissue we expose more of your tooth and improve the balance of your smile. The procedure is quick and performed under local anaesthetic in our Central London clinic.
We numb the area so you feel little to no discomfort. Nervous patients from areas such as Soho and Paddington can also opt for IV sedation to help them relax.
Your gums will heal over a couple of weeks. Avoid hard or sticky foods for 2–3 days and follow our aftercare advice. Most patients resume normal activities soon after their appointment.
Studies suggest that around 2 mm of gum is ideal. If you show more than 3 mm and feel self‑conscious, crown lengthening could help you feel more confident.
Yes. Trimming back excess gum can make it easier to clean your teeth and reduce your risk of gum disease, improving both appearance and oral health.
Ace Dental
Lister House,
11-12 Wimpole Street,
Marylebone, London
W1G 9ST
Call us on:
Opening times:
Weekdays 9am - 6pm
Ace Dental
11 High Street,
Wanstead, London
E11 2AA
Call us on:
Opening times:
Monday 9am - 6pm
Tuesday & Wednesday 9am - 7pm
Thursday 9am - 5:30pm
Friday 9am - 5pm
Saturday 9am - 2pm
Sunday Closed
Rakus Dental
34 Hans Road,
Knightsbridge,
London,
SW3 1RW
Call us on:
Opening times:
Monday 9 am- 6 pm
Tuesday 9 am- 6 pm
Wednesday 9 am - 6 pm
Thursday 9 am - 6 pm
Friday 9 am - 6 pm
Saturday 10 am - 4 pm
Sunday Closed