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Straight Teeth Direct UK Reviews, Cost and Process


Considering getting your teeth straightened? Straight Teeth Direct is a budget-friendly, fast, and almost invisible solution. This brand uses clear aligners to gradually straighten your teeth, and they are posted to your home so you don't have to visit the dentist each month.

straight teeth direct uk
Are Straight Teeth Direct aligners right for you?

It sounds pretty convenient, but you might have noticed that Straight Teeth Direct is not the only brand in the UK offering this solution. So, what makes them different – and do they really work?

We’re here with a detailed Straight Teeth Direct review that will answer questions like:

  • How can I get aligners without seeing a dentist?
  • How does Straight Teeth Direct work?
  • Can I still see a dentist about my treatment?
  • How much does Straight Teeth Direct cost?
  • What do Straight Teeth Direct reviews say?
  • How does Straight Teeth Direct compare vs Invisalign or Smile Direct Club?

Plus more details that you’ll need when choosing between the different types of braces for adults.

Getting your clear aligners through the post is a pretty new idea in the UK, so of course you want to get all the information you can. By the time you’re finished reading you’ll be armed with everything you need know about Straight Teeth Direct.

Getting aligners through the post

One of the key things that puts a lot of us off getting our teeth straightened is fear of the dentist. Straight Teeth Direct have cut out the need to go into an intimidating office and are bringing orthodontics into your home.

That doesn't mean you won't have any contact with a dentist; it's just done online. The first step is to send some photos of your teeth and answer some questions to have your treatment approved.

Then, you need to take your teeth impressions with a kit sent to your home. After that, you'll receive a treatment plan with a 3D simulation showing your Straight Teeth Direct before and after predicted results.

Once you approve the plan, your aligners arrive in the post for you to start wearing. The Straight Teeth Direct App lets you track your progress and chat with your assigned orthodontist any time you have any questions.

How does Straight Teeth Direct work?

Straight Teeth Direct started as a high tech dental and orthodontist office in 2006 and went on to expand their digital presence with a teledentistry platform launched in 2016. They work with dentists and orthodontists to make sure you get the smile you want to achieve.

Although you’ll be getting your aligners through the post, they work in much the same way as in-office aligners like Invisalign and ClearCorrect. Clear aligners (as well as traditional metal braces) can correct issues like:

clear aligner fitting
There are no visits to a dentist when you get mail-order aligners

Invisible aligner braces became very popular when Invisalign launched in 1997. They were the first company to make clear plastic removable teeth aligners as an alternative to “train track” braces.

Straight Teeth Direct have taken the concept of clear aligners and moved the whole process online, making it more convenient and also a lot cheaper than in-office solutions. Using this system is quite different to visiting a dentist, so we’ll go what to expect when you use Straight Teeth Direct in the UK.

It's worth noting that at-home aligner solutions are generally only suitable for mild to moderate teeth straightening, and they cannot change the jaw shape. If you have a more severe malocclusion then you will need to consult an orthodontist in person.

Getting started

Your first contact with Straight Teeth Direct is your chance to tell them what your problem is. During the initial consultation, you’re asked to provide five clear photos of your teeth. Don’t worry, there are really clear instructions on their website so you know what angles they need.

Fill out the click-through questionnaire on the website where you’ll be asked if:

  • You have active gum disease
  • You suffer from tooth decay
  • Any of your teeth are loose or wobbly
  • You’ve got any crowns, bridges, veneers, or implants
  • You experience any jaw pain or have difficulty opening your jaw
  • You’ve visited a dentist and had x-rays in the last 6 months and been told there are no problems

And then you’ll give your personal details so an orthodontist can get back to you to see if you’re suitable for the aligners.

Ordering your SmileBox

After an orthodontist has checked out your details and approved you for treatment, you can order a SmileBox. This is a kit containing everything you need to take impressions. Simply bite into the putty-filled trays and pop them back in the post for your aligners to be made. You get 3 sets of trays so don't worry if it doesn't go right the first time you try.

There are detailed instructions in the kit, but you might also find it helpful to watch this Straight Teeth Direct impressions video tutorial before starting:

If you haven't ordered your SmileBox™ yet: 1. Download the free app on Itunes or access it here from any other device via to find out if you are suitable for invisible braces at home 2. Order your SmileBox™ to take your own impressions 3. Finally get the smile you deserve 😉

The box contains some dental and medical forms to complete. You're advised to get checkups every six months with your normal dentist, and you can choose to release your dental records to Straight Teeth Direct if you want to.

You also have the option to visit Straight Teeth Direct’s London office for a 3D scan. If you live nearby, you might find this more convenient than doing your own teeth impressions at home, but it's completely up to you which option you choose.

Your personal Straight Teeth Direct before and after

To decide if you really want to go ahead with Straight Teeth Direct, before and after images will be vital. Your personal orthodontist plans how your teeth will move and then sends you a 3D simulation so you can see how things will look once your treatment is completed.

Now it's time for you to decide if you want to go ahead with mail-order aligners.

Receiving your StraightBox

straight teeth direct reviews
The SmileBox and StraightBox from Straight Teeth Direct in the UK

Your first sets of clear aligners will come in the post in a matter of weeks. The manufacturing process is completed using 3D printing and a hand finish so your aligners should fit against your teeth really well. Aligners are delivered in stages so that they can be refined as your treatment progresses. The average treatment involves four deliveries.

Your plan will usually take around 5-9 months to complete, with a change of aligners usually every two weeks. It’s important to wear them for 22 hours a day, only taking them out for eating and drinking anything other than water.

Following up

As you work your way through your aligners, you’ll be asked to send pictures of your progress. You can send these via the Straight Teeth Direct App, which tracks your progress and results.

Phone calls can be made and emails exchanged if you have any questions outside of your normal contact. Upon completing your course of treatment, you’ll need to wear a retainer to maintain the new, straight smile you’ve achieved.

One comes free as part of the Straight Teeth Direct price, and there’s a Maintainer Plan that has an annual subscription which gets you fresh retainers every 6 months, plus new aligners if your teeth start to move again whilst you’re subscribed.

The four guarantees

Straight Teeth Direct comes with some guarantees, which settle any worries you might have about spending a fair amount of money on a relatively new technology.

The guarantees are:

  • They will make sure that you’re suitable and won’t charge you if your impressions are wrong and you need to take new ones
  • You won’t have to pay any extra if you lose or break an aligner
  • You pay a fixed price to achieve the smile they offer and you don’t pay extra if you need refinements to your treatment
  • By signing up to the Maintainer Plan you get an extended guarantee

Straight Teeth Direct vs Invisalign

Now that you understand how Straight Teeth Direct works, you might be wondering how it compares to in-office brands like Invisalign.

The biggest difference when comparing the two brands is the amount of face-to-face contact you get with a professional. Although Straight Teeth Direct assigns an orthodontist to take you through the whole process, you only ever get to meet them online. In contrast, you go in to see your Invisalign dentist every 4 – 6 weeks so you can raise any concerns and have any adjustments you need.

Invisalign also offer a lot more choice with their treatment options. What’s more, their aligners can work on more complex cases since they have years of experience; currently Straight Teeth Direct can only fix mild to moderate problems with your teeth.

Of course, all of these extras mean the treatment cost is higher with Invisalign vs Straight Teeth Direct. That said, Invisalign Lite and i7, which are designed for mild to moderate tooth movement, often come in under £2,000. It could be worth getting a quote before deciding to do your treatment remotely.

How much does Straight Teeth Direct cost in the UK?

Because you don’t have to go into an office to see an orthodontist, aligner treatment with Straight Teeth Direct costs much less than in-person options, from just £1,350. Unlike some other postal aligners, you can have your case reviewed and approved by a dentist before you have to pay to order the kit. Once you’re ready to go ahead, there are some useful finance options.

Here’s a breakdown of Straight Teeth Direct’s prices for the UK:

Service Price
Initial consultation Free
SmileBox - impressions and before & after simulation £42
Full payment of aligner treatment £1,350
3 instalments of aligner treatment 3 x £500
Finance for aligner treatment £40 per month for 36 months
Maintainer Plan – 2 sets of retainers per year, guarantee for lost or damaged retainers, and up to three new aligners if your teeth move again £139 per year
Prices correct at time of writing but may change at any time.

It’s worth noting that the Finance option will require a credit check and there are other payment timeframes available; this is just an example.

A Straight Teeth Direct discount code can be given to you by a friend who’s already signed up and having treatment. This will knock some money off your SmileBox price.

Getting your smile straightened is all well and good, but to get the perfect smile you might also want to investigate a Straight Teeth Direct whitening treatment. For £269 extra you get a KöR professional whitening treatment that’s only available through dentists.

Is there a Straight Teeth Direct discount code?

Straight Teeth Direct promo codes may be available on their website. If you're looking for the cheapest way to safely straighten your teeth, there are more affordable Invisalign alternatives out there.

Straight Teeth Direct Reviews

A quick check of Straight Teeth Direct on Trustpilot shows they have five stars and 91 percent of their reviews are very positive. Here is one from Megan which is representative of people who are near the end of their treatment:

“I’m 80% of the way through my treatment and really impressed with the service I’ve received. The messaging service in the app makes progress updates and getting your questions answered quick and easy, not that I’ve had to use it much as it’s been smooth sailing! The aligners are great quality and well-finished. I’ve literally only had to file one sharp edge throughout my treatment (which is a standard thing to have to do for any aligner brand) so really impressive.”

And now, here is a Straight Teeth Direct review video from Tarfy. She is half way through her treatment and you can already see that her teeth have moved quite a lot. She talks us through how it works and what her experience has been like so far, and also puts in a new set of aligners for the first time. You can view Part 1 here where she unboxes her SmileBox, takes her impressions, and fits her first aligners.

Just an update halfway through my teeth straightening journey.. I am loving it so much! Seeing results every few weeks! Follow me on Instagram @tarfy To complete your free e-consultation go to to To PURCHASE your Smile Box, use the DISCOUNT CODE: 6e8b2ea98d The code needs to be entered when the account is created (it is not a promo code to use at checkout). Ensure you enter it when creating your account at the end of the form where it says "how did you hear about us" "friend referral code". Straight Teeth Direct Invisible Aligners PART ONE: How it works:

Alternatives to Straight Teeth Direct

You’ve probably already had a look around at different options for straightening your teeth. Straight Teeth Direct are just one of quite a few companies that have recently started to offer remote orthodontics in the UK. So how do they compare to some of the others out there?

Straight Teeth Direct vs Smile Direct Club

This is one of the best known names in both the UK and the US. With a network of 21 Smile Shops, American brand Smile Direct Club has the biggest physical footprint of all the UK postal aligner companies. This might make them a good choice if you don't live near London.

You won’t get to see an orthodontist or dentist when you visit a Smile Shop, but you can get your teeth scanned rather than having to do your own impressions.

The prices at Smile Direct Club are a little higher than Straight Teeth Direct and they only offer one repayment model. You do get teeth whitening gel included in the price though, and the monthly payment option includes two free retainers as well.

We'd suggest you read some UK Smile Direct Club reviews before going ahead with them, as they don't have the best reputation for customer service.

Straight Teeth Direct vs Straight My Teeth

Another well-established remote orthodontics company in the UK is Straight My Teeth. Their prices are much lower than either Smile Direct Club or Straight Teeth Direct, at £999 for a course of treatment. With a money-back guarantee if your impressions show that you’re not eligible for their aligners, there’s no financial risk to giving Straight My Teeth a try.

You can take their free online assessment here to see if you're a good candidate for these aligners, or read our full review of Straight My Teeth.

This table has a quick overview of these three options:

Straight Teeth Direct Straight My Teeth Smile Direct Club
Suitable for Mild to moderate issues
Average timeframe 5-9 months 9-12 months 4-6 months
Cost for impressions £42 £49 £39, or scan for free
Physical locations 1 in London 1 in Ashford, London 21 around the UK
Cost for treatment £1,350 £999 including whitening £1,499
Retainer cost 1 included, can pay subscription for more 1 included (worth £99) £79
Finance options 3 payments of £500 or finance through a lender Deposit of £295 and 12 payments of £67 Deposit of £199 and 12 payments of £120
Materials and manufacturing BPA-free resin, 3D printed Raintree Essix Plastic BPA-free plastic
Treatment provided by Personal orthodontist Dentists, orthodontists, and dental technicians Dentist or orthodontist
Prices correct at time of writing but may change at any time.


Straight Teeth Direct is one of the more experienced companies when it comes to teledentistry in the UK. Their process is refined, the impressions kit they send you is well organised, and the app is well designed and accessible. The Straight Teeth Direct price lands in the middle of the market but their positive reviews make them good value.

One downside is that the Maintainer Plan – which seems the only way to get replacement retainers after your treatment – is a long-term subscription cost. However, it works out about the same price as replacing your retainers twice a year with other competing companies.

If you're looking for an even cheaper way to get straight teeth with clear aligners at home, check out Straight My Teeth. Their plan costs just £999!

And if you decide against at-home aligner treatment for whatever reason, you can still get invisible braces with Invisalign. They have a large network of providers in the UK, and you can check here to see where your nearest one is.

Straight Teeth Direct UK Reviews, Cost and Process
3.5 (69%) 20 vote[s]

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.