Last updated: January 2026. This guide compares Invisalign and braces costs, treatment times, effectiveness, and suitability in the UK, including NHS options and who qualifies for free treatment.
Choosing between Invisalign and braces is one of the biggest decisions you'll make when considering orthodontic treatment. Both can straighten your teeth effectively, but they differ significantly in cost, appearance, lifestyle impact, and suitability for different cases.
This comprehensive guide provides verified information from official UK sources to help you understand the key differences and make an informed choice about your orthodontic treatment.
Quick Comparison: Invisalign vs Braces at a Glance
Before diving into the details, here's a summary of the key differences between Invisalign and traditional braces in the UK.
| Factor | Invisalign | Traditional Braces |
|---|---|---|
| Average cost (UK) | £2,500–£5,500 | £1,500–£4,200 |
| Treatment time | 6–18 months | 12–24 months |
| Visibility | Nearly invisible | Visible (metal) or less visible (ceramic) |
| Removable | Yes | No |
| Food restrictions | None (remove to eat) | Yes (hard, sticky foods) |
| Best for | Mild to moderate cases | All case types |
| NHS available | No | Yes (under 18s, if eligible) |
| Effectiveness | ~88% success rate | ~90% success rate |
Invisalign Cost UK 2026: Complete Price Breakdown
Invisalign is a premium orthodontic treatment, and costs vary based on complexity, treatment length, and provider location.
How Much Does Invisalign Cost in the UK?
"The UK average cost for Invisalign treatment is £3,244, with prices ranging from £1,500 to £5,500 depending on case complexity." — My Tribe Insurance
| Invisalign Treatment Type | Cost Range | Treatment Duration | Best For |
|---|---|---|---|
| Invisalign Express (i7) | £1,500–£1,950 | 3–6 months | Minor corrections, single arch |
| Invisalign Lite | £2,500–£2,650 | 6–8 months | Mild crowding or spacing |
| Invisalign Moderate | £3,000–£3,500 | 12–18 months | Moderate alignment issues |
| Invisalign Full | £3,500–£4,500 | 12–24 months | Complex cases |
| Invisalign Comprehensive | £4,250–£5,500+ | 18–24+ months | Severe or complex cases |
Regional Price Variations
Invisalign costs vary by location in the UK:
- Birmingham: Average £3,670 (approximately £400 above UK average)
- London: £3,000–£5,500 (surprisingly competitive due to high provider density)
- South East: £3,000–£4,500
- Northern England: £2,500–£4,000
- Scotland/Wales: £2,500–£4,000
Is Invisalign Available on the NHS?
No. Invisalign is not available on the NHS. It's considered a cosmetic dental treatment, and the NHS only provides traditional metal braces for patients who meet the clinical eligibility criteria.
"Invisalign is classified as cosmetic dental treatment and is therefore not available through NHS funding." — NHS Dental Charges
If you want Invisalign, you'll need to pay privately or use finance options offered by dental practices.
Braces Cost UK 2026: NHS and Private Options
Traditional braces remain the most widely used orthodontic treatment and offer both NHS and private options.
Private Braces Costs
| Brace Type | Cost Range | Visibility | Treatment Time |
|---|---|---|---|
| Metal braces | £1,500–£4,200 | Most visible | 12–24 months |
| Ceramic braces | £1,800–£5,500 | Tooth-coloured, less visible | 12–36 months |
| Lingual braces | £5,000–£7,000 | Hidden (behind teeth) | 12–24 months |
| Self-ligating braces | £2,000–£4,500 | Less visible than traditional | 12–18 months |
NHS Braces: Who Qualifies and What It Costs
NHS orthodontic treatment is available for children and young people who meet specific clinical criteria.
Eligibility requirements:
- Age: Under 18, or under 19 if in full-time education
- Clinical need: Must meet IOTN (Index of Orthodontic Treatment Need) Grade 4 or 5, or Grade 3 with aesthetic component score of 6 or more
"Eligibility for free NHS orthodontic treatment is based on the severity of malocclusion measured using the Index of Orthodontic Treatment Need (IOTN) and the age of the patient." — British Orthodontic Society
NHS Band 3 charges (if you need to pay):
| Nation | Band 3 Cost | Notes |
|---|---|---|
| England | £326.70 | From April 2025 |
| Wales | £260.00 | From April 2024 |
Free NHS treatment is available if you:
- Are under 18 years old
- Are under 19 and in full-time education
- Receive qualifying benefits (Income Support, JSA, ESA, Universal Credit meeting income thresholds)
- Hold an HC2 certificate (NHS Low Income Scheme)
NHS Waiting Times
Be aware that NHS orthodontic waiting times are currently significant:
"Total children waiting for NHS orthodontic assessments: 351,208. Of these, 223,710 are waiting over 18 weeks and 141,487 beyond 52 weeks." — British Dental Journal
Current typical waits:
- Initial assessment: Up to 2 years in high-demand areas
- Starting treatment: Additional 6+ months after assessment
- Less demanding areas: 6 months to 1 year
Important: Children aged 16+ may age out of NHS eligibility whilst on waiting lists.
How Invisalign Works
Invisalign uses a series of custom-made, clear plastic aligners to gradually move your teeth into position.
"Invisalign treatment consists of a series of clear, removable aligners that gradually straighten your teeth. Each aligner is worn for approximately 2 weeks before moving to the next in the series." — Invisalign UK
The Invisalign Process
- Consultation and scanning: Your dentist uses an iTero scanner to create a detailed 3D image of your teeth
- Treatment planning: A custom plan is created showing how your teeth will move
- Aligner production: Your aligners are manufactured to your exact specifications
- Wearing aligners: Each set is worn for about 2 weeks, 20–22 hours per day
- Progress check-ups: Visit your dentist every 6–8 weeks to monitor progress
- Completion: Once treatment finishes, retainers maintain your results
Daily Wear Requirements
For Invisalign to work effectively, you must wear your aligners for 20–22 hours per day. You only remove them for:
- Eating and drinking (except water)
- Brushing and flossing
- Cleaning your aligners
This compliance requirement is crucial — if you don't wear your aligners enough, treatment will take longer or may not work as planned.
How Braces Work
Traditional braces use brackets bonded to each tooth, connected by wires that apply continuous pressure to move teeth gradually.
"Metal brackets are attached to each tooth, connected by wire. Renowned for durability and effectiveness, metal braces can treat a wide range of orthodontic issues." — Beecroft Orthodontics
Types of Braces Explained
Metal braces: The most common and affordable option. Made from stainless steel, highly durable, and effective for all case types.
Ceramic braces: Tooth-coloured brackets that blend with your teeth. Function like metal braces but are less noticeable. Cost 25–50% more than metal.
Lingual braces: Attached to the back of your teeth, making them invisible from the front. Most expensive option and may affect speech initially.
Self-ligating braces: Use clips instead of elastic bands to hold the wire. May require fewer adjustment appointments and be more comfortable.
Invisalign vs Braces: Treatment Time Comparison
Treatment duration depends on the complexity of your case and, for Invisalign, your compliance with wearing aligners.
How Long Does Invisalign Take?
| Case Complexity | Treatment Time |
|---|---|
| Minor corrections | 6–12 months |
| Moderate cases | 12–18 months |
| Complex cases | 18–24 months |
"Most Invisalign patients complete treatment in 12–18 months. Minor adjustments can be completed in as little as 6 months." — Invisalign UK
How Long Do Braces Take?
| Case Complexity | Treatment Time |
|---|---|
| Simple cases | 12 months |
| Average cases | 18–24 months |
| Complex cases | 24–36 months |
"Most adults fall into the 12–18 month bracket for metal braces treatment per NHS guidelines." — Whites Dental
Which Is Faster?
Research findings are mixed:
"Studies show mean treatment time of 18 months for Invisalign versus 24 months for conventional braces. However, some studies found braces finished 0.4 years earlier than aligners for extraction cases." — PMC Clinical Study
General guidance:
- For mild to moderate cases, Invisalign is often faster
- For complex cases requiring extractions, braces may be quicker
- Patient compliance significantly affects Invisalign treatment time
Effectiveness: Can Invisalign Fix What Braces Can?
Both treatments are highly effective, but they have different strengths.
Clinical Effectiveness Comparison
"Invisalign achieves approximately 88% effective corrections, compared to 90% for conventional braces. The difference is not statistically significant for most outcomes." — PMC Comparative Analysis
| Factor | Invisalign | Braces |
|---|---|---|
| Overall success rate | ~88% | ~90% |
| Mild-moderate crowding | Excellent | Excellent |
| Spacing issues | Excellent | Excellent |
| Overbite correction | Good (with attachments) | Excellent |
| Underbite correction | Good (mild cases) | Excellent |
| Complex rotations | Limited | Excellent |
| Vertical movements | Limited | Excellent |
| Relapse rate | 12% | 10% |
What Invisalign Can Treat
Invisalign works well for:
- Mild to moderate crowding
- Spacing and gaps (under 6mm)
- Mild to moderate overbites and underbites
- Crossbites (with attachments and elastics)
- Minor bite corrections
When Braces Are the Better Choice
Traditional braces are recommended for:
- Severe crowding requiring tooth extraction
- Large gaps (over 6mm)
- Complex bite problems (severe overbite, underbite, crossbite)
- Significant tooth rotations
- Vertical tooth movements
- Skeletal issues requiring jaw correction
"Braces offer better control of teeth torque, are more effective at increasing transverse width, and have superior retention capabilities for complex movements." — PMC Treatment Effectiveness Study
Comfort and Pain: What to Expect
Both treatments cause some discomfort, but the experience differs.
Does Invisalign Hurt?
Most patients find Invisalign more comfortable than braces:
- Initial discomfort: Mild pressure for 2–7 days when starting new aligners
- No mouth sores: Smooth plastic doesn't irritate cheeks and gums
- Manageable pain: Often described as "pressure" rather than pain
Do Braces Hurt?
Braces typically cause more discomfort:
- After adjustments: Soreness for 2–5 days following each appointment
- Bracket irritation: Wires and brackets can rub against cheeks and lips
- Potential ulcers: Mouth sores are common, especially early in treatment
"Research suggests Invisalign causes less discomfort overall compared to traditional braces, with no brackets or wires causing soft tissue trauma."
Pain management tips for both:
- Over-the-counter painkillers (paracetamol, ibuprofen)
- Orthodontic wax for bracket irritation
- Soft foods during adjustment periods
- Cold compresses for swelling
Invisalign vs Braces for Adults
Adult orthodontics has grown significantly, with many adults choosing Invisalign for its discretion.
Why Adults Choose Invisalign
- Professional appearance: Nearly invisible during meetings and presentations
- Removability: Take out for important events or photos
- Video calls: The "Zoom boom" has made smile appearance more important
- Lifestyle flexibility: No food restrictions
- Easier oral hygiene: Remove to brush and floss normally
"76% of orthodontists report increased adult patients seeking treatment, with many citing Invisalign's invisible appearance as a key factor."
When Adults Should Consider Braces
- Complex orthodontic needs that Invisalign can't address
- Compliance concerns: Fixed braces work even if you forget
- Budget constraints: Metal braces cost significantly less
- Severe bite issues: Better results with traditional appliances
Adult Treatment Considerations
- Treatment may take longer than for teenagers (bone density differences)
- Gum health is essential: Periodontal disease must be treated first
- Lifestyle assessment: Consider which treatment fits your daily routine
- Long-term commitment: Both treatments require retainer use for life
Invisalign vs Braces for Teenagers
Both options work well for teens, but each has advantages.
Invisalign Teen Features
Invisalign offers specific features for teenage patients:
- Blue wear indicators: Fade over time to show the aligner has been worn enough
- Replacement aligners: 6 free replacement aligners if any are lost
- Compliance tracking: Helps parents monitor whether aligners are being worn
Age requirement: Typically suitable from age 12–14, once most permanent teeth have emerged.
Why Some Teens Prefer Braces
- No discipline required: Fixed braces work automatically
- Coloured bands: Many teens enjoy customising their braces
- No risk of loss: Can't misplace fixed appliances
- Parents' peace of mind: No worrying about compliance
Choosing for Your Teen
Consider:
- Maturity level: Can they commit to 22 hours daily wear?
- Responsibility: Will they keep track of aligners?
- Sports: Mouthguards work better with aligners (removable)
- Social factors: Do they prefer invisible treatment?
- Case complexity: Some cases require braces regardless of preference
Pros and Cons Summary
Invisalign Advantages
- Nearly invisible appearance — confident during treatment
- Removable for eating — no food restrictions
- Easier oral hygiene — brush and floss normally
- Fewer appointments — check-ups every 6–8 weeks
- More comfortable — no brackets or wires causing irritation
- 3D treatment preview — see expected results before starting
- Shorter treatment time — for mild to moderate cases
Invisalign Disadvantages
- Higher cost — typically £1,000–£2,000 more than metal braces
- Requires discipline — must wear 22 hours daily
- Not for all cases — limited effectiveness for severe issues
- Risk of loss — aligners can be misplaced
- Attachment visibility — small bumps on teeth may be noticeable
- No NHS option — must pay privately
Braces Advantages
- Treats all cases — suitable for any complexity
- No compliance needed — fixed, so they work automatically
- Lower cost — especially metal braces
- NHS available — free for eligible under-18s
- Proven track record — decades of successful results
- More precise control — for complex tooth movements
Braces Disadvantages
- Highly visible — especially metal braces
- Food restrictions — no hard, sticky, or chewy foods
- Difficult oral hygiene — harder to brush and floss
- Regular appointments — adjustments typically every 4–6 weeks
- Discomfort — from wires, brackets, and adjustments
- Potential breakage — brackets can come loose
Making Your Decision: Which Is Right for You?
Choose Invisalign If:
- You have mild to moderate alignment issues
- Aesthetics are a priority
- You're disciplined and can commit to 22 hours daily wear
- You want removability for eating and special occasions
- You prefer fewer dental visits
- Your budget allows for the higher cost
Choose Braces If:
- You have complex orthodontic issues
- You prefer a fixed solution that works automatically
- Budget is a primary concern
- You're eligible for NHS treatment
- You have severe bite problems or need extractions
- You're concerned about compliance discipline
Questions to Ask at Your Consultation
- Which treatment is best suited to my specific case?
- How long will my treatment take with each option?
- What is the total cost, including retainers?
- What payment plans or finance options are available?
- How many similar cases have you treated?
- What happens if I'm not happy with the results?
- How often will I need appointments?
- What are the risks specific to my case?
Retainers: Essential for Both Treatments
Regardless of whether you choose Invisalign or braces, you'll need to wear retainers after treatment to maintain your results.
"All teeth straightening treatments require retainers to keep teeth straight and prevent them moving back to their original positions." — Invisalign UK
Retainer Types and Costs
| Retainer Type | Cost | Description |
|---|---|---|
| Fixed (permanent) | £100–£400 | Wire bonded behind teeth, continuous wear |
| Removable (Essix) | £60–£500 | Clear plastic, worn nightly |
| NHS replacement | £84.80 | If originally treated on NHS |
Most orthodontic treatment packages include retainers, but check this is included in your quoted price.
How Long Do You Wear Retainers?
- First 3–6 months: Full-time wear (20+ hours daily)
- After 6 months: Night-time wear only
- Long-term: Most orthodontists recommend wearing retainers for life, at least at night
Finding the Right Orthodontist
Choosing a qualified provider is crucial for successful treatment.
How to Check Qualifications
"Only approximately 3% of UK dentists are qualified as specialist orthodontists, having completed 3 years of postgraduate training." — London Orthodontics
Verify registration:
- Check the GDC (General Dental Council) register at olr.gdc-uk.org
- Look for specialist orthodontist status
- For Invisalign, consider provider status (Platinum, Diamond providers have more experience)
What to Look for in a Provider
- Experience with your specific treatment type
- Before and after photos of similar cases
- Clear pricing with no hidden costs
- Flexible payment options if needed
- Good reviews from previous patients
- Convenient location for regular appointments
Finance and Payment Options
If paying privately, many practices offer ways to spread the cost.
0% Finance
Many orthodontic practices offer interest-free payment plans:
- Typical terms: 3–36 months
- Requirements: UK resident, aged 18+, regular income
- Deposit: Usually 10–20% required
Example: £3,500 Invisalign treatment could cost approximately £290/month over 12 months at 0% APR.
Extended Finance
For longer repayment terms:
- Terms: Up to 60 months
- Interest: Variable rates apply (typically 9.9%–19.9% APR)
- Lower monthly payments: But higher total cost
Dental Insurance
Most dental insurance policies have limited orthodontic coverage:
- Children under 18: Some policies include orthodontic cover
- Adults: Usually excluded or classed as cosmetic
- Limitations: Annual maximums typically apply
Frequently Asked Questions
Is Invisalign worth it in the UK?
Invisalign is worth it if aesthetics matter to you and you have mild to moderate alignment issues. It's more expensive than metal braces (£2,500–£5,500 vs £1,500–£4,200) but offers invisible treatment and lifestyle flexibility. For complex cases, traditional braces may provide better results.
Is Invisalign more painful than braces?
Most patients find Invisalign less painful than braces. Invisalign causes mild pressure for a few days with each new aligner but has no brackets or wires to irritate your mouth. Braces can cause more discomfort from adjustments and may cause mouth ulcers from bracket friction.
Can Invisalign fix an overbite?
Yes, Invisalign can fix mild to moderate overbites, especially when used with attachments and elastics. However, severe overbites often achieve better results with traditional braces, which offer more precise control over tooth and jaw movement.
How much do braces cost for adults in the UK?
Private adult braces cost £1,500–£7,000 depending on type: metal braces £1,500–£4,200, ceramic braces £1,800–£5,500, and lingual braces £5,000–£7,000. NHS braces are rarely available for adults as orthodontic treatment is typically limited to under-18s.
Can I get Invisalign on the NHS?
No, Invisalign is not available on the NHS. It's classified as cosmetic dental treatment. The NHS only provides traditional metal braces, and only for patients under 18 who meet clinical eligibility criteria based on the Index of Orthodontic Treatment Need (IOTN).
How long do you wear Invisalign each day?
You must wear Invisalign aligners for 20–22 hours per day for treatment to work effectively. You only remove them for eating, drinking anything other than water, and brushing your teeth. Wearing aligners less than required will extend treatment time or compromise results.
Which treatment gives faster results?
For mild to moderate cases, Invisalign often completes treatment faster (12–18 months average) compared to braces (18–24 months average). However, for complex cases requiring extractions, braces may be quicker. Treatment time varies based on individual cases and compliance.
Are there cheaper alternatives to Invisalign?
Yes. Other clear aligner brands include ClearCorrect, Spark, and 32Co, which may be slightly cheaper. At-home aligners like NewSmile cost £599–£795 but are only suitable for very mild cases and lack in-person supervision. Always ensure treatment is supervised by a qualified dental professional.
Can adults get NHS orthodontic treatment?
NHS orthodontic treatment for adults is extremely rare. It's only available in exceptional circumstances where there's a clinical need beyond cosmetic improvement, such as severe functional problems affecting eating or speech. Adults typically need to pay for private treatment.
How do I know if I need braces or Invisalign?
The best way to know is to have a consultation with an orthodontist. Generally, Invisalign suits mild to moderate cases where aesthetics matter, whilst braces are better for complex cases, severe bite issues, or when budget is a concern. An orthodontist can assess your specific needs and recommend the most suitable option.
Ready to Start Your Orthodontic Journey?
Whether you choose Invisalign or braces, the most important step is getting a professional assessment. A qualified orthodontist can examine your teeth, discuss your goals, and recommend the best treatment for your specific case.
Consider booking consultations with 2–3 providers to compare recommendations and costs. Many practices offer free or low-cost initial consultations.
Use our search to find orthodontists and dentists offering Invisalign and braces near you, compare services, and take the first step towards your new smile.
