If your teenager has told you they don't want metal braces because everyone will see them, you've probably already started wondering about alternatives. The conversation about orthodontic treatment has changed dramatically over the past decade. Where fixed braces were once the only option, parents now face a genuine choice between traditional braces and clear aligners like Invisalign.
You want what's best for your child - not just a straight smile, but the right treatment for their specific needs. So how do you decide?
Fixed Braces and Invisalign: The Basics
Both options straighten teeth and correct bite issues, but they work differently.
Fixed Braces
Small brackets are bonded to each tooth and connected by a wire. Your dentist adjusts the wire periodically (usually every 6 to 10 weeks), gradually moving teeth into position.
The main types include:
- Metal braces - the traditional stainless steel option. Modern brackets are much smaller and less noticeable than they used to be
- Ceramic braces - tooth-coloured brackets that blend in better. Same effectiveness as metal but slightly more fragile
- Lingual braces - fitted behind the teeth, so virtually invisible. More expensive and not suitable for every case
Fixed braces typically stay on for 12 to 24 months depending on how much movement is needed.
Invisalign
Instead of brackets and wires, your child wears a series of clear, custom-made plastic aligners. Each aligner is worn for about 1 to 2 weeks before moving to the next in the sequence.
The aligners are:
- Removable - taken out for meals, brushing, and special occasions
- Nearly invisible - made from clear plastic, far less noticeable than metal
- Digitally planned - treatment is mapped out in 3D so you can see a virtual preview of the result before starting
The catch: Invisalign requires commitment. The aligners need to be worn 20 to 22 hours a day. For younger children who might forget to put them back in after lunch, this can be a challenge. That's why Invisalign is usually recommended for teenagers aged 13 and older.
There is an Invisalign First option for younger patients with mixed dentition, but suitability varies case by case.
Quick Comparison
| Feature | Fixed Braces | Invisalign |
|---|---|---|
| Visibility | Noticeable (metal) to discreet (ceramic/lingual) | Nearly invisible |
| Removable | No | Yes - for eating, brushing, special occasions |
| Food restrictions | Yes - avoid hard, sticky foods | None - aligners come out for meals |
| Oral hygiene | Harder - brushing around brackets takes more effort | Easier - brush normally with aligners removed |
| Best for | Moderate to severe cases, younger children, complex bite issues | Mild to moderate cases, responsible teenagers |
| Compliance needed | None - braces work 24/7 automatically | High - must wear 20-22 hours daily |
| Treatment time | 12-24 months | 12-18 months (straightforward cases) |
| Typical private cost | 2,000-4,500 pounds | 2,500-5,500 pounds |
| NHS availability | Yes (if eligible) | Rarely |
Who Should Consider Which Treatment?
This is where it gets personal. The best option depends on your individual child.
Fixed braces tend to work well for:
- Children with moderate to severe crowding, spacing issues, or complex bite problems
- Cases where teeth need significant rotation or precise root adjustment
- Younger children (from around age 11 to 12 upwards)
- Children who might struggle with the responsibility of wearing removable aligners consistently
Invisalign often suits:
- Responsible teenagers (typically 13+) with mild to moderate alignment issues
- Young people who are self-conscious about their appearance
- Those who play contact sports or musical instruments where fixed braces might interfere
- Patients who are motivated enough to keep track of their aligners
At Danbury Dental Care, our orthodontic dentist Dr Adam Carstairs (BDS London, GDC 75063) has extensive experience with both options, having completed over 400 Invisalign cases. His approach is to recommend what will give your child the best result - not simply the treatment they think they want. Some bite issues require the precise control that fixed braces provide, and he'll be honest about that during consultation.
If you'd like to explore whether Invisalign might work for your teenager, we're happy to arrange an assessment. You can also learn more about our approach to children's orthodontics.
Pain and Discomfort: What to Expect
Both treatments involve some discomfort - your child's teeth are being moved, after all.
Fixed braces: Expect tenderness for a few days after each adjustment. Over-the-counter pain relief helps. Orthodontic wax can ease any rubbing from brackets against the inside of the mouth.
Invisalign: Mild pressure when switching to a new aligner, usually easing within a day or two. Less chance of mouth irritation since there are no brackets or wires.
Neither should cause severe or ongoing pain. If your child is really struggling, get in touch with your dental practice.
What About Cost? And Can You Get It on the NHS?
NHS orthodontics
If your child is under 18 and has a clinical need (assessed using the Index of Orthodontic Treatment Need, or IOTN), they may be eligible for NHS treatment. This typically involves fixed braces at the Band 3 charge. Invisalign is rarely available on the NHS.
Private treatment
If your child doesn't meet NHS criteria, or you prefer a specific treatment option, private care is the route to take.
For a detailed breakdown of costs by treatment type, including NHS eligibility and payment plan options, see our braces cost guide for parents.
Many practices, including ours, offer flexible payment plans to spread the cost. Finance is subject to status, terms and conditions apply.
What to Expect at Danbury Dental Care
Step 1: Initial consultation - we assess your child's teeth, bite, and facial development. We talk through your concerns and your child's preferences.
Step 2: Treatment planning - if treatment is appropriate, we explain which options are suitable, timelines, and costs. This is your chance to ask questions.
Step 3: Records and imaging - photos, X-rays, and digital scans create a detailed treatment plan tailored to your child.
Step 4: Treatment begins - whether fixed braces or Invisalign, we guide you through what to expect and how to care for teeth during treatment.
Step 5: Regular monitoring - progress check-ups every 6 to 10 weeks for braces, or 8 to 12 weeks for Invisalign.
Step 6: Retention - once treatment is complete, retainers keep the new smile in place. Most patients wear retainers nightly for life to maintain results.