Orthodontics · Patient Guide
Clear Aligners vs Braces in London: Which Option May Be Suitable?
By Dr Sedef Sera Hepdarcan Sirman|8 min read|DentAkademi London
Clear aligners and braces can both be used to move teeth, improve alignment and support a healthier bite. Patients in London often compare these options when they want straighter teeth but are unsure whether removable clear aligners or fixed braces are more suitable.
Clear aligners may appeal to patients who want a removable and less noticeable orthodontic option. Fixed braces may be more suitable for some complex movements, more severe crowding or cases where patient compliance may be difficult.
The right choice depends on clinical assessment. Tooth position, bite, gum health, oral hygiene, case complexity, lifestyle, treatment goals and willingness to follow instructions all matter. Neither option is automatically better for every patient.
What Are Clear Aligners?
Clear aligners are removable plastic trays designed to move teeth gradually. Patients wear a sequence of aligners, with each aligner making small movements as part of a planned orthodontic treatment. Invisalign is one well-known clear aligner brand, but it is not the only clear aligner system available. Clear aligners may be suitable for selected cases, but they still require clinical planning, monitoring and retainers after treatment.What Are Fixed Braces?
Fixed braces use brackets attached to the teeth and wires that guide tooth movement. They may be metal, ceramic or other fixed orthodontic systems depending on the case and provider. Because fixed braces are attached to the teeth, they work continuously and do not rely on the patient remembering to wear them. This can be useful in cases where consistent aligner wear may be difficult. Fixed braces may be more suitable for certain complex tooth movements or bite corrections.The Main Difference at a Glance
| Factor | Clear Aligners | Fixed Braces |
|---|---|---|
| Removable? | Yes — removed for eating and cleaning | No — stay on teeth throughout treatment |
| Appearance | Less noticeable (though not invisible) | More visible, especially metal |
| Relies on patient wear | Yes — must be worn 20–22 hrs/day | No — attached to teeth |
| Suitable for complex cases | Selected mild–moderate cases | Wider range of complex movements |
| Eating restrictions | Few — remove aligners to eat | Some — hard/sticky foods to avoid |
| Oral hygiene | Easier to brush and floss | More care needed around brackets |
| Retainers after? | Yes | Yes |
Appearance and Discretion
Many patients consider clear aligners because they are less noticeable than traditional metal braces. This may be important for adults, professionals or patients who feel self-conscious about orthodontic treatment. However, clear aligners are not completely invisible. Attachments may be placed on teeth to help the aligners grip and move teeth more effectively — these can sometimes be visible. Fixed braces are usually more visible, especially metal braces. Ceramic braces may be less noticeable, but they are still fixed appliances. Patients should choose based on suitability, not appearance alone.Patient Compliance
Patient compliance is one of the biggest practical differences between clear aligners and fixed braces. Clear aligners only work when worn as instructed — typically 20 to 22 hours daily for best results, depending on the doctor’s instructions. Patients who frequently forget to wear aligners, lose them or remove them for long periods may not get the planned result. Fixed braces are attached to the teeth, so they do not rely on daily wear-time decisions. However, patients still need to attend appointments, avoid damaging the appliance and keep the teeth clean.Eating and Oral Hygiene
Clear aligners are usually removed for eating. This means patients can generally continue eating most foods, provided they clean their teeth before replacing the aligners. Fixed braces stay in place during eating — patients may need to avoid hard, sticky or chewy foods that could damage brackets or wires. With both options, oral hygiene is important. Clear aligners can make brushing and flossing simpler because they are removable, but teeth should usually be cleaned before aligners are placed back in the mouth. Fixed braces can make cleaning more difficult around brackets and wires — patients may need interdental brushes or special flossing tools.Treatment Complexity
Clear aligners may be suitable for selected mild to moderate cases, including some crowding, spacing, small gaps and relapse after previous orthodontic treatment. Fixed braces may be more suitable for complex movements, severe crowding, significant rotations, certain bite corrections or cases where more controlled tooth movement is needed. The choice should be based on the clinical problem, not simply on which appliance looks better.Clear Aligners vs Braces for Crowded Teeth
Both clear aligners and braces may be used for crowded teeth, depending on severity. Mild or moderate crowding may sometimes be treated with aligners. More complex crowding may need fixed braces, additional space planning or specialist orthodontic care. If teeth look uneven because they are crowded or rotated, orthodontic treatment may be more appropriate than trying to disguise the issue with bonding or veneers — cosmetic treatment cannot correct tooth position.Clear Aligners vs Braces for Gaps
Both clear aligners and braces may help close selected gaps caused by tooth position. Orthodontics can close gaps between teeth and correct the bite. If the gap is related to tooth shape rather than tooth position, composite bonding or veneers may sometimes be discussed instead. A consultation helps decide whether the gap should be closed by moving teeth, reshaping teeth or a combined approach.Clear Aligners vs Braces for Bite Problems
Bite problems can be more complex than visible tooth alignment. Some bite issues may be treated with clear aligners, while others may need fixed braces, elastics, specialist orthodontic input or a different treatment approach entirely. Patients should not assume that clear aligners can treat every bite problem. If the bite is not assessed properly, teeth may look straighter but still not meet correctly — which can affect long-term comfort and function.Which Option Is Better for Adults?
Adults may choose clear aligners because they are removable and less noticeable — helpful for work, social situations or patients who prefer not to have visible fixed braces. However, adults may also be suitable for fixed braces depending on the case. Adult orthodontic treatment should begin with assessment of gum health, tooth wear, previous dental work and bite. These factors are especially important if the patient has crowns, veneers, implants, missing teeth or a history of gum disease.Which Option Is Better for Teenagers?
The right option for teenagers depends on dental development, case complexity, motivation and ability to follow instructions. Clear aligners require consistent wear — if a teenager is unlikely to wear aligners as instructed, fixed braces may be more reliable. However, some teenagers may be suitable for clear aligners if they can follow the treatment plan and maintain good oral hygiene. A dental or orthodontic assessment is needed before deciding.Retainers After Treatment
Retainers are usually needed after both clear aligner and fixed brace treatment. Teeth can move again if retainers are not worn as advised. Retainers may be removable or fixed depending on what is most appropriate. Retention should be discussed before treatment begins — not presented as an afterthought at the end. Maintaining tooth position is part of the long-term orthodontic plan regardless of which appliance was used.Frequently Asked Questions
Are clear aligners better than braces?
Not always. Clear aligners may be suitable for selected mild to moderate cases, while fixed braces may be better for more complex tooth movements or bite problems. Suitability depends on clinical assessment.Are braces better than clear aligners?
Braces may be more suitable for some complex cases, but they are not automatically better for every patient. The right choice depends on tooth position, bite, compliance and treatment goals.Are clear aligners more discreet than braces?
Clear aligners are usually less noticeable than traditional metal braces, but they are not completely invisible. Attachments may be visible in some cases.Do clear aligners work as well as braces?
Clear aligners can work well in suitable cases. Fixed braces may be more effective for some complex movements. The correct option depends on the clinical case.Can clear aligners fix crowded teeth?
Clear aligners may help selected cases of mild to moderate crowding. Severe crowding may need fixed braces or specialist orthodontic assessment.Can clear aligners close gaps?
Clear aligners may close selected gaps caused by tooth position. Gaps caused by tooth shape may sometimes be better treated with bonding or veneers.Do braces work faster than clear aligners?
Treatment speed depends on the case, not only the appliance. Patients should be cautious with claims that one option is always faster.Are clear aligners painful?
Clear aligners may cause pressure or discomfort when a new aligner is started. Persistent or severe pain should be discussed with the dental team.Do I need retainers after clear aligners or braces?
Yes. Retainers are usually needed after orthodontic treatment to help stop teeth moving back to their original position.What is the first step?
The first step is a consultation to assess tooth position, bite, gum health, oral hygiene, treatment goals and whether clear aligners or braces are more suitable for your case.
Written by Dr Sedef Sera Hepdarcan Sirman
Orthodontist at DentAkademi London, specialising in clear aligner therapy, fixed braces and comprehensive orthodontic treatment planning for adult and younger patients. Full Profile →Clinically reviewed · June 2026