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
  • Hassan Kamran

    Having qualified from the University of Liverpool in 2015, I then went on to obtain membership with the Royal College of Surgeons London in 2018. I aim to provide the best treatments for my patients by keeping up to date with the latest trends in dentistry by attending various courses such as Invisalign. In 2019, I completed a year long course in advanced aesthetic restorative dentistry in London which enables me to provide treatment in a calm, ethical and predictable manner. It gives me great satisfaction to treat patients from all walks of life, particularly the dentally anxious! Outside of dentistry, I love travelling, eating and spending time with my family.

    • BDS (2015), MJDF RCS (eng)
    • Registration number: 257814
    Read More

What customers say about us.

The Vallance Dental Centre IconThe Vallance Dental Centre

Brunswick Street, Manchester

4.7 ★★★★★ 578 reviews

  • Avatar Raychel johnson ★★★★★ a month ago
    Anika was amazing today at the dentist! Thank you. She was so friendly, polite and professional.
    I had a polish and clean today in the dentist and I really appreciated her advice, support and reassurance.
    Thank you for such a positive experience. It was so positive I booked another appointment in March.
    Raychel x
  • Avatar David Evans ★★★★★ 4 months ago
    The surgery is easy to get to on foot and there are safe crossings over very busy roads in the area making getting there on foot very safe. There is also free parking at the back of the building, and on the side street at the front of it with no time penalties.
    The dental surgery is located on the first floor, above the general surgery. There a small but sufficient combined waiting room and reception desk where Deb greets you. She's very efficient, very kind and gets things done!
    Hassan is
    … More the first dentist I've seen in 15 years (the last one was terrible hence the hesitation to see another dentist). I was very impressed with his skill and pragmatism in assessing my dental condition, and allowing me to talk about my concerns and discuss my priorities.
    After many X-rays, a bit of healthy discussion between him and his lovely assistant (who's name escapes me),
    he has helped me develop a full treatment plan, with fixed costs and no nasty surprises. I have signed up for this and my first treatment is exactly a week from when this was written.
    I shouldn't say this about going to the dentist, but I'm actually looking forward to seeing how the treatment goes in the coming weeks.
  • Avatar Mohammad Khan ★★★★★ 5 months ago
    The Vallance Dental center, we're (my family) extremely happy with their services. The place is remarkably neat and clean, the service people are extremely friendly and helpful. Our dentist, Dr. Darren Wilkinson, whom my whole family has been visiting, is just outstanding with his behaviour and his professionalism. We, including our two children, just love this place and the people there.
  • Avatar Melanie Teeling ★★★★★ 6 months ago
    My family and I use to live local to this dentist but 15 years ago we moved further away. We have a few dental practises near to where we live but I wouldn't want to change ever. From the receptionist dental assistants to the dentist have always been absolutely fabulous. I would recommend this dental practise to anyone searching for a dentist.
  • Avatar Tif Leu ★★★★★ 5 months ago
    I don’t usually leave comments but want to make an exceptional case. I have met the best dentist I have come across so far. She’s not just very professional but also throughout treatment you could see she pays attention to detail, was showing compassion to patient (myself). I am a healthcare professional myself and to be fair, I arrived at the clinic after work feeling very tired. The dentist who supported me clearly brought therapeutic qualities to the treatment and I finished the session feeling … More blessed and rejuvenated.
    I have specifically requested the same dentist for my upcoming appointments.
    I thank you Vallance center for the thorough support and have recommended the center to a few people afterwards.
  • Avatar Gethin ★★★★★ 5 months ago
    Went to see the hygienist (Eesha) today and she was professional and helpful. She gave me more comprehensive advice than I've received at previous appointments. The nurse (Sam) was super welcoming and reassuring. Both skilled, professional and friendly!

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. Please see our dental charges page for up to date fees.