What is Invisalign®?

Invisalign® is a clear brace system which uses a sequence of computer-designed aligners made from durable BPA-free plastic to gradually move your teeth by applying pressure in precision locations.


How does Invisalign® work?

Detailed impressions of your mouth are taken which are then scanned into a 3D modelling software.

Using specific parameters for tooth movement and detailed experience gathered from over 5 million cases, a unique set of movements are planned to straighten your teeth.


These movements are then broken down into stages and 3D printing is used to create individual aligners to carry out the planned tooth movement.

Once these aligners have been created you will visit your Invisalign® Dentist to have the aligners fitted and your progress will be reviewed periodically.

How long does it take to straighten my teeth with Invisalign®?

Invisalign® on average takes between 20 to 30 aligners to straighten your teeth. These are changed approximately every 2 weeks. This gives an average treatment time of between 9 to 12 months.

Each case is individual and to get a more accurate idea, we would advise you to contact us for a consultation.

Does Invisalign® hurt?

When first starting any orthodontic treatment there will be minor discomfort due to the pressure applied to move your teeth. You may find eating at first slightly slower due to the slight discomfort. This usually lasts only a few days after fitting your new aligners. Over-the-counter pain medication such as paracetamol or ibuprofen will provide relief against this discomfort.

Invisalign® vs fixed braces

There are certain advantages with each brace system. It is important to understand these before embarking on treatment. In this section we will discuss Invisalign® vs other braces and the advantages and disadvantages of clear braces and fixed braces.

Clear Aligners



Fixed braces

These systems utilise brackets which are bonded to the teeth for the duration of treatment. Onto these brackets, titanium or stainless steel wires are tied in place using small elastic bands.



Who is Invisalign® suitable for?

It is difficult to answer this question without having a consultation. Please contact us for an assessment.

Invisalign® can treat a number of different types of mild to moderate discrepancies. Discrepancies in tooth movements are called malocclusions. These malocclusions include:

Crowded teeth

This is when the teeth aren’t quite in the perfect alignment and need a number of movements to bring everything into line.

Overbite or increased overjet

Where the top teeth overlap the lower teeth a little too far and have been pushed forward. This is sometimes corrected by moving the bottom and top teeth into line.

Underbite or reversed overjet

Where the bottom teeth overlap the top teeth. This is sometimes corrected by moving the bottom and top teeth into line.


This is when there are gaps between the teeth that need closing. This is corrected by bringing all the teeth closer together.

Who is Invisalign® not suitable for?

Again, it is difficult to answer this question without having a consultation. Broadly speaking, treatment is only suitable for people when they only require mild or moderate corrections to their teeth.

There is a smile assessment tool which may be useful in determining if you are suitable. Please contact us for an assessment at the practice.

Invisalign® process explained

1. The Consultation and treatment plan

First you will have an assessment of your teeth by a dentist. This includes a checkup if you aren’t a patient at our practice. Your needs and what you would like to change with regard to your teeth are discussed. Following this, if you are suitable and decide to go ahead with treatment impressions are taken of your teeth and sent to the laboratory.

After the impressions of your teeth and have been scanned a treatment plan will be formed. This is referred to as a ClinCheck®.



Your dentist will work closely with Invisalign® to optimise your treatment plan. When this is ready the number of aligners and stages will be identified. You will receive a ClinCheck® showing the anticipated movements of your teeth.

2. Delivering and fitting your aligners

Once we have received your aligners, we will make arrangements to fit them. Sometimes you will be given a number of aligners and instructed on when to change them. Each one is numbered on the pouches they are delivered in and also printed on the aligner itself. Your progress will be reviewed with your provider roughly every 2-6 weeks.

At these appointments, your progress will be reviewed alongside the ClinCheck®. Sometimes small tooth adjustment is required to create space. This is the process where up to 0.5mm of enamel can be removed from each surface of the tooth, this allows further space for your teeth to be aligned. This is known as interproximal reduction.

This interproximal reduction is done with thin abrasive strips most commonly. This process is painless and doesn’t require any local anaesthetic. Here is the British Orthodontic Society information leaflet on interproximal reduction.

3. Refinements

Sometimes as you reach the end of your treatment, extra refinements may be required to give you the very best results. Often this is included in your treatment plan and requires a new set of impressions, from which a small set of aligners are made to move your teeth into their final positions. Once all tooth movements are completed the most important stage comes next

4. Results and retention

Once you have reached the end of your treatment, it is really important to plan how we are going to hold the teeth in their new position. Usually teeth want to move back to their original position.

Retainers hold the teeth in place so your teeth do not move back to their original position (also known as relapse). You will require life-long retainer use to ensure you keep your teeth in their new positions.

Fixed vs removable retainers

Retention can either be removable, fixed or commonly – both may be required. Your Invisalign® Provider will discuss which options will be used and which would be the best on a case by case basis.

Invisalign® have their own system of retainers, Vivera Retainers® to hold teeth in their new position. These can be added to your treatment plan from the outset.

5. Follow-up care

You will be advised by your Invisalign® provider how often you should be seen for a review and check-up following your treatment.

Before and after

Here are a number of before and after pictures of patients which our Invisalign® Providers at the Vallance Dental Centre have treated.

How much does Invisalign® cost?

Each treatment plan is unique with its own individual complexity. As such, it is hard to give an exact price without a consultation.

At The Vallance Dental Centre, our prices start from £2500 for a single arch case, or from £3500 for a dual arch case. Additional costs may be required for retainers, fixed and/or removable.

At the Vallance Dental Centre, we include tooth whitening for free at the end of your Invisalign® treatment.

Finance is available, see our finance calculator here.

See our price list here for detailed information on the cost of all brace options.

Meet the Invisalign team…

  • Nasreen Najefi

    I have 10+ years’ experience in NHS,private dental practices and in maxillofacial surgery within the hospital setting. I graduated from King’s College London in 2007 and continued my education with numerous post graduate courses and was shortlisted as Best Young Dentist in London in the 2012 and 2013 Dentistry awards. After relocating from London to Manchester, it was an easy to decision for me to join the Vallance Dental Centre. Upon meeting the team and seeing first hand their vision and commitment to high quality dental care it mirrored that of my own. I am passionate about new trends and techniques in dentistry including a wide range of cosmetic treatment options such as Invisalign® and Dental implants. Aside from dentistry, I am an avid artist, mother of two wonderful little people and aspiring globe trotter!

    • BDS (2007), MJDFRCS (eng), PGCert Dental Education
    • Registration number: 114718
    • Private Dentistry Award Nominee 2012 & 2013 - Best Young Dentist London area
    Read More
  • Arfeen Aslam

    Dr. Arfeen Aslam graduated from Guy’s, King’s and St Thomas’ School of Dentistry, King’s College London and obtained his membership of the faculty of the Royal College of Surgeons in 2012. He has completed various postgraduate dental courses including a certificate in advanced aesthetic and restorative dentistry, becoming a certified provider of a wide range of orthodontic treatments and completing a year long programme in implant placement and restoration. Along with a caring, ethical approach he strives to make a difference to each and every person that he treats. Arfeen won the prestigious Private Dentistry award as the Best Young Dentist North in 2018.

    • B.D.S(2008)
    • Registration number: 156196
    • Private Dentistry Award winner 2018 - Best Young Dentist North area
    Read More

What customers say about us.

The Vallance Centre Brunswick IconThe Vallance Centre Brunswick

Brunswick Street, Manchester

3.4 ★★★☆☆ 92 reviews

  • Avatar Anna Hyclová ★★★★★ a month ago
    Was with Dr Ngan and partners for two years, I have left this practice now but I have to say every time I had any issue and called in, I got an appointment with the Dr basically immediately, most of the time a call back within a few hours. And this was multiple times in the last two years including the practice calling me to check on me and my medication without my initiative. Reception also always really nice and helpful. Overall would absolutely recommend, the staff at this practice care.
  • Avatar Susan Hopkins ★★★★★ 2 months ago
    Sophia and Pauline are so kind, friendly and helpful. I have complete confidence in them. They are lovely. Kathryn Gaunt
  • Avatar Mohammad Khan ★★★★★ 4 months ago
    The Vallance Dental Centre, they're just fantastic. Starting with the receptionists, they're very friendly. We, my wife, our two children and me, have been visiting this dental clinic, especially the dentist Darren Wilkinson for number of years, have been extremely happy with his professionalism, kind and friendly service. So, we wish him to have our dentist forever.
    Our well wishes and thanks to Mr. Wilkinson for his outstanding service.
  • Avatar Ali Saunders ★★★★★ in the last week
    If I could give more stars to Dr Cheesman i honestly would. Such a wonderful professional calm and funny man. One of my children have severe anxiety and could not control their emotions and fear.Dr Cheesman was patient, caring and quickly gave her the reasurance she needed to get the job done.
    On our second visit my child was excited to see Dr Cheesman and was able to sit there comfortably and have a good old chat before the work continued.
    Beautiful calm environment and I love how Dr Cheesman talks
    … More children step by step through what is being done.
    Definitely recommend this Dental Centre .
  • Avatar Sadaf xo ★★★★★ 2 months ago
    had an emergency appoitment at the dental clinic the practitioner was amazing and made me feel comfortable throughout the whole procedure !
  • Avatar Paul Mason ★★★★★ a month ago
    I entered the reception area and was greeted by a friendly hello. It took less than 10 seconds to book me into their system, I was then shown into the dental surgery. Again I was greeted with a friendly hello and was asked how I was.
    After my examination I was explained to in an easy to understand manner of what I was doing. I was advised to get a particular toothbrush ( no hard sell here). I was then escorted to the reception desk to make another appointment. An enjoyable experience! Yes, at the
    … More dentist.

Frequently Asked Questions

Hi there. If you have questions or at any point you’re confused then you’re looking  at the right place to find the answers. You can also email us at contact@thevallance.com.

  • What do I need to bring to my first appointment?

    Please bring the following items with you to your appointment:

    • Completed written medical history, details and names of any medication
    • Funds adequate to cover appropriate fees.
    • If applicable, proof of any exemptions from NHS dental charges. If not exempt from NHS charges,
    • Proof of address (utility bill, driving licence)
    • Proof of ID (passport, driving licence, red book if child)
  • What do I need to bring to subsequent appointments?

    Please bring the following items with you to your appointment:

    • Any updated medical history details and names of any medication changes
    • Funds adequate to cover appropriate fees
  • My teeth feel fine why do I need regular checks?

    It is great that your teeth feel fine, but we would recommend you have a dental checkup if you haven’t had one for a while. The reason for this is that often when dental symptoms appear the problem causing them is much more difficult to fix, and often with a worse prognosis. For example, early tooth decay often causes little or no discomfort or sensitivity. If this decay progresses then tooth loss or root canal treatment may be inevitable. With regular dental checkups the aim is to identify any problems early so they can be resolved with the best prognosis.

    We follow the guidelines set out by NICE with regard to dental examinations. Your risk to certain dental diseases will be assessed and a recall interval will be recommended from 3 to 24 months for your next check up.

Contact us today.

Please see our contact page to find out how to contact us for a detailed consultation with one of our Invisalign® providers for £50. Should you decide to go ahead with treatment, this will be deducted from the final price.