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Diastema Treatment Cost: Close Gaps between Teeth with Braces, Veneers or Bonding

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A gap between two teeth is known as a diastema. Gappy teeth are really common in children but are generally not something to be worried about since the spaces often disappear as adult teeth erupt.

woman with diastema teeth
Some people are happy to live with a gap in their teeth

If you have a diastema or several gaps between your teeth after all of your adult teeth have come through, you may want to explore different malocclusion treatments for diastema closure. Or, you might not – some people choose to keep their diastema, especially between the two front teeth. It's actually believed to bring wealth, fertility or luck in certain cultures.

Here we’ll go through everything you need to know, such as:

  • The definition of a diastema
  • What causes a diastema
  • How to get rid of gaps in teeth with different treatment options
  • Teeth gap treatment costs

We hope this helps you decide the best course of action for the gaps between your or your child's teeth.

Do you want to close the gaps in your teeth without braces fixed to them? Invisalign clear aligners are subtle yet effective, making them a very popular diastema treatment. Invisalign treatment is suitable for 90% of cases and you can check here to see whether you're a good candidate.

They have a large network of providers throughout the UK so you will receive attentive care throughout your treatment.


Diastema definition

The simple definition of a diastema is a gap between two teeth. It's most noticeable with gappy front teeth, but spaces can occur anywhere in the mouth. A gap in the lower teeth is called a mandibular diastema whereas a gap in the front two teeth is called a midline or median diastema.

large gap between front teeth
Some gaps are more obvious than others

According to this report in the Journal of the American Dental Association, between 1.6% and 25.4% of people have a diastema. That's quite a gap! Although the findings are presented in a fairly technical way, it's worth scrolling through if you want to see some pictures of diastema closure before and after.

Gaps in baby teeth are pretty normal because at this stage the jaw is still growing and the teeth developing. As children grow up, lose their milk teeth, and get their adult teeth, any spaces often close naturally. If gaps are left then you can seek advice from a dentist.

People with spaces between their teeth need to take extra care with their oral health. A water flosser and interdental brushes can help, making it easier to clean gaps between teeth.

Do you want to know what your teeth would look like after treatment to close your diastema? You can get a smile visualisation for free and with no obligation using Invisalign's SmileView tool. Just upload a selfie and wait a moment for your result.

What causes gaps in front teeth?

There are quite a few different diastema causes. The main one is a mismatch in the size of teeth vs jaw size. If your jaw is too big or teeth are too small then they won’t align properly.

Ask a dentist: When is a diastema cause for concern?

A diastema is a term for a space between teeth, often the upper front teeth in particular. For children, a gap noticeable between front teeth isn’t generally harmful and will usually close when their permanent teeth come in. Teens and adults may choose to have a diastema closed for cosmetic reasons. Treatment options include both orthodontic closure or restorative treatment to widen the teeth, like porcelain veneers.

A diastema between posterior teeth can be a food trap, and aside from being annoying, could lead to bone loss or tooth decay. Some spaces may open as a result of missing posterior teeth putting excess forces on the remaining teeth. Finally, underlying periodontal disease is a common reason for spaces developing.

Often, however, a diastema is mainly a cosmetic issue and each patient will have to decide whether it’s something they can live with or not.

Dr. Greg Nalchajian, Nalchajian Orthodontics

Gaps in front teeth can also be caused by extra tissue growing above the teeth. The bit of skin between your lip and top front teeth is called your frenum and this can overgrow sometimes. If it does grow too much it can force a diastema between your two upper front teeth.

gappy teeth child
Children's gappy teeth often close up by themselves

Other things that cause a diastema are generally based on behaviour, such as:

  • Thumb sucking
  • Tongue thrusting
  • Poor dental hygiene leading to gum disease

Thumb sucking will normally cause a midline diastema because this is where the thumb exerts pressure. Tongue thrusting can cause a mandibular diastema if the tongue is pushing against the lower teeth when swallowing. Both of these habits can be corrected in childhood to prevent long term issues. 

If you suffer from periodontitis (severe gum disease), you could end up losing teeth. The infection can also lead to bone loss in your jaw which can make your teeth move and create gaps.

What is a peg lateral?

Sometimes the tooth called the second incisor – that’s the one next to the very front two teeth – doesn’t develop properly. This is known as a peg lateral, which is generally small and pointy. Because it is smaller than it should be, there might be gaps on either side.

Crowns, teeth implants and veneers (see below) are all options for fixing a peg lateral.

How to get rid of gaps in teeth

There are two approaches to closing gaps in teeth. Small gaps can often be filled using dental bonding or veneers. In other cases, it's better to close the teeth gap with braces or aligners. Your dentist will be able to talk you through which treatment is best for the gaps in your teeth, since every case is different.

Closing gaps in teeth with braces

Braces can be used to adjust the position of diastema teeth and close gaps in the mouth. Larger gaps usually require treatment with braces, whereas smaller gaps can be closed in other ways – more on these in a moment.

You’ll need to wait until all adult teeth have erupted before braces for a diastema can be considered. This is because a child’s jaw can grow at a different rate to their teeth, and the mix of milk teeth and adult teeth can cause natural spacing between teeth. Once everything has developed, if any problems still persist then your dentist will discuss different braces options.

In this time lapse video you can watch the progress made by one patient with metal braces to close the gap in his front teeth:

A year and a month with braces on. January 2016-February 2017. Thank you to Cleveland Orthodontics for making my teeth perfect.

Invisalign for a diastema

If you want to close gaps in teeth without metal braces, consider invisible braces like Invisalign aligners. These clear aligners are very hard to notice, unlike conventional braces, but they are still an effective treatment for around 90% of patients with teeth spacing. They also have the added convenience of being removable.

The Invisalign system uses advanced technology to scan your mouth and monitor your treatment using an app, making the entire process more efficient and predictable.

Do you want to check whether you might be a suitable candidate for diastema treatment with aligners? Invisalign's Smile Assessment tool can give you an answer in just two minutes – and it's free to use. Click below to get started:

If you'd prefer to discuss your treatment options in person, search for Invisalign providers in your area and book your first appointment online. Most offer a free, no-obligation initial consultation.

The Invisalign system is one of the best-known and most established brands in this market and their aligners work for 90% of orthodontic cases. However, there's also the option of at-home aligner solutions like Straight My Teeth.

With Straight My Teeth, you can do everything from home. You take impressions of your teeth using a kit they send you, and then your aligners are posted out to you. A dentist or orthodontist monitors your treatment online to check your teeth are moving as planned. Because you're not paying for in-office checkups every few weeks, this diastema treatment costs just £799.

invisalign diastema treatment
Clear aligners are an effective way to straighten teeth

It's easy to check whether you're eligible for £799 aligners with Straight My Teeth, just visit their website to complete their quick and free assessment. Then you can order your impression kit and get started!

Both of these brands provide effective diastema closure but you'll need to decide which is best for you based on the complexity of your case, the amount of face-to-face contact you want with a dentist, and your budget.

How can I get rid of gaps in teeth without braces?

Braces and aligners aren’t the only solutions for filling gaps in teeth. The two other options that may be offered are veneers and composite bonding which are best for closing just one or two gaps. If several of your teeth are over-spaced then braces may be a better option.

Your dentist will discuss which treatment is most suitable for you, but here we’ll go through the pros and cons of each to help you understand your options.

Porcelain veneers

A porcelain veneer is a thin cover that fits on top of your natural teeth to alter the shape and/or colour. Fixing a small diastema with veneers is quite straightforward, but this treatment is only suitable for adults.

When filling gaps between teeth using veneers, the dentist simply makes the veneers slightly wider than the original teeth. When they are fitted, they meet in the middle and hide the gap.

fill gaps in teeth
Smaller gaps can be treated with veneers or bonding

Porcelain veneers usually require two dental visits; one to prepare the teeth and take measurements for the veneers, and another to fit them once they have been made in a lab. You can read more about veneers here.

Veneers can help cover up small gaps in teeth naturally, but the results may not look so good if used for a large gap. You don’t want to look like you have oversized front teeth! Dentists are good judges of what will look natural; they look at different smiles every day, after all, so you should trust your dentist's opinion about the best option for you.

Composite bonding

With diastema bonding, a composite material is applied directly to the teeth – no lab work required. The dentist builds up and shapes the composite to give the desired appearance. In the case of filling gaps in teeth, the composite is used to extend the tooth slightly to close the diastema.

Composite material can be used to cover the original tooth completely, in which case it's called a composite veneer. It's also a common treatment for chipped tooth repair.

In the following video, you can see a dentist perform diastema closure with composite bonding on the patient's four front teeth. The material is applied to the sides of the teeth to fill the gaps, before being hardened and shaped.

Can Tooth Bonding be a viable procedure to close spaces between the teeth in the front of the mouth? Fortunately, many people are candidates for dental bonding (aka pasta, diastema closure, front tooth filling / composite). When braces aren't an option or effective, tooth bonding is a procedure that can be done to allow filling material to be bonded on to a front tooth in order to change the shape of the tooth, close spaces, and improve the cosmetic appearance of the teeth. Tooth bonding can also be an alternative to dental veneers, and often doesn't require any removal of enamel whatsoever. Long term, the composite used for tooth bonding tends to pick up more stain, and thus is less color stable, than porcelain veneers. However, for such a minimally invasive procedure, the results can be fantastic when strict adherence to bonding techniques is maintained. Thanks for watching!

Veneers vs. bonding for a diastema

The table below summarises the two main options for treating a diastema without braces, including teeth gap treatment costs for both:

Porcelain Veneers

Composite Bonding

What does it involve?

A porcelain cover is applied to the teeth, made slightly wider than the teeth to fill in a gap

A composite material is added directly to the teeth to build them up, increasing the size of the teeth to fill the gap

How long does it take?

2 visits – one consultation and another 1-3 weeks later for fitting

Can be done in one visit

What does it cost?

£400 - £1000 per tooth

£90 - £300 per tooth


Long lasting and hard wearing

Fast and lower cost


Takes away some healthy tooth, takes two dentist visits, only works for small gaps

Will need touching up – bonding lasts up to 5 years, only works for small gaps

How much does a diastema closure cost?

Closing gaps in teeth costs anywhere from £200 (for composite bonding to fill a gap between two front teeth) to thousands of pounds for porcelain veneers or braces.

We've already covered the prices for veneers and bonding in the table above. Treating diastema teeth with braces costs between £1,000 and £5,500, depending on the type of braces used.

Invisalign diastema treatment prices start at around £1,500 for people who need mild orthodontic treatment with Invisalign Express. For more significant teeth movement, Invisalign Comprehensive will be more suitable. This can cost up to £5,500 for the most severe cases.

The best way to check the exact cost of Invisalign treatment for your diastema is to have a consultation with an Invisalign provider near you. They have a wide network of dentists and orthodontists around the UK so you shouldn't have to travel too far.

If you're happy having your treatment carried out remotely, with no in-office visits, you could also consider Straight My Teeth's clear aligners. These are one of the most affordable treatments for simple diastema closure, costing just £799. However, they can't treat quite the same range of cases that Invisalign can.

Filling gaps between teeth is unlikely to be considered a medical necessity, and therefore the NHS usually doesn't cover diastema closure costs in the UK.

Children and adults with severe cases of teeth spacing, perhaps as a result of hypodontia (naturally missing teeth), may be eligible for braces and then dentures or dental bridges to fill the gaps. The NHS also covers treatment for periodontitis, which may be the cause of gaps between teeth.

For more information about the different kinds of braces you can read this guide. You may also want to explore your finance options for dental work.


A diastema, or gap in your teeth, is generally not a medical concern in itself. But, there can be underlying reasons you have gaps in your front teeth, or between other teeth, so it’s best to see a dentist for a proper assessment.

Don’t be too concerned if your baby has gaps in their teeth; this is quite common and may well fix itself when their adult teeth erupt.

Closing gaps in teeth is reasonably straightforward and traditional braces aren’t always necessary. The Invisalign system, for instance, can treat around 90% of orthodontic problems. Don't forget, you can check your eligibility for Invisalign treatment online or find a provider near you to discuss your diastema closure in more detail.

For milder cases, Straight My Teeth offers at-home aligner treatment for just £799. Or you might look at veneers to close a small gap between teeth.


Can a retainer fix gaps in teeth?

Retainers can be used for some orthodontic treatments, but are limited in what movement they can achieve. Fixed or removable braces are a more effective way to correct the diastema. Then, you can wear a retainer to maintain the new alignment.

Removable aligner braces are probably the closest option to a retainer since they aren't fixed to your teeth like traditional braces. They are also far less noticeable than a metal wire retainer. You can quickly check your eligibility for removable aligner braces with Invisalign's free Smile Assessment, or book an appointment with your nearest Invisalign provider.

How can I fill gaps in teeth naturally?

It really depends what you mean by ‘naturally’. Although braces, veneers, and bonding may not be considered natural, they are safe and effective and deliver natural-looking results.

There is a trend for people to use elastic bands around their gappy teeth to try and pull them together. The American Association of Orthodontists reported on the trend in 2017, saying that it could be dangerous and cause more damage than it is trying to fix.

Your dentist will be able to talk you through all of your options if you’re worried about the appearance of your teeth.

How can I fill a gap between teeth at home?

You could use a temporary filling material but this won't look good or be durable. A home teeth straightening kit is a better solution if you don't want to visit a dentist. It's still a good idea to have regular dental checkups to ensure good overall oral health.

Are gaps in baby teeth normal?

gaps in baby teeth
Baby teeth often have gaps as the jaw grows

Gaps are normal in baby teeth because at this age, the jaw is still developing and a child's baby teeth may end up looking spaced out. This is also true when both baby and adult teeth are present.

If there are still gaps after their jaw has stopped developing and all the teeth have erupted, and they want to get their diastema fixed, then a dentist can advise which method would work best.

Read more about the development of baby teeth.

I have gaps in my teeth after braces, what can I do?

Braces are designed to correct the position of your teeth and give you a properly aligned smile. If you aren’t happy with the results of your treatment then refer back to the orthodontist who treated you. Do make sure that you wear your retainers as instructed after your treatment; this helps ensure your teeth stay in the correct position.

Does flossing create gaps in teeth?

There isn’t any reason that normal flossing would cause gaps to appear between your teeth. Flossing incorrectly could harm the gums and cause them to recede, creating the appearance of gaps between teeth.

Our guide on how to floss properly will help you with the correct technique. If you are worried about your gums or gaps appearing in your teeth, check that everything is ok with your dentist; it could be a sign of gum disease.

Do gaps in teeth get bigger with age?

As we get older our teeth can shift position and the enamel may begin to erode. This can cause gaps in teeth to get bigger with age. It's possible to get braces for gaps in teeth later in life, but you should also check that the tooth movement is not happening as a result of gum disease.

How long do braces take to close a gap?

This really depends on how much tooth movement is needed to remove the gaps between teeth. Treatment with braces for a teeth gap can be as quick as three months, but it can be a lot longer if more complex treatment is needed. An orthodontist will be able to assess your case and provide a treatment plan.

Diastema Treatment Cost: Close Gaps between Teeth with Braces, Veneers or Bonding
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Amanda specialises in writing informative content about dentistry. She has been a regular contributor to since 2017, and collaborates with dozens of dentists to keep this content accurate and up-to-date.
Dr. Nalchajian received a degree in engineering and worked as an aerospace engineer before earning his dental degree at USC and his certificate in orthodontics from the Eastman Dental Center in Rochester, NY. He frequently travels internationally to give lectures to orthodontists on practice management and treatment for the Invisalign system, helping hundreds of orthodontists improve their practices along the way.

JADA: Treating a maxillary midline diastema in adult patients. Consulted 22nd June 2019.

ResearchGate: A clinical case report on the treatment of mandibular diastema, associated with tongue interposition and tongue thrust swallow. Consulted 22nd June 2019.

Prices stated are indicative only and are based on publicised treatment prices at dental clinics across the UK.