Straighter teeth are easier to clean, which helps prevent tooth decay and gum disease. A balanced bite spreads chewing forces more evenly, reducing tooth wear and jaw strain. Many people also feel more confident after treatment. In children and teens, some treatments can guide jaw growth so later care is simpler. Every plan should be designed by a qualified orthodontist or dentist after a full exam, and any plan that moves teeth will need a retainer afterward to keep the result stable.
An orthodontist or dentist will always recommend the most suitable solution based on each patient’s specific needs. The choice depends on factors such as age, jaw growth, the severity of crowding or bite problems, oral hygiene habits, and the patient’s expectations for comfort and appearance. What works best for one person may not be the right option for another, which is why a full professional examination, including X-rays and photos, is essential before starting any treatment.
Clear aligners: Invisalign, ClearCorrect, Spark
Clear aligners are custom clear trays that fit over the teeth. You wear a series of trays, each one moving the teeth a small step. Small tooth colored bumps, called attachments, and sometimes tiny elastics can be added to guide movement. Advantages of clear aligners are a discreet look, the ability to remove them for eating and brushing, and usually fewer emergencies. Disadvantages are that success depends on wearing them as prescribed and some complex tooth root or bite changes can be harder. Average treatment duration ranges from about half a year to two years, depending on the problem and how consistently the trays are worn. Clear aligners are recommended for mild to moderate crowding or spacing and for motivated patients who want a low profile option.
Invisalign: prices
Invisalign does not publish fixed retail prices. The company states that your doctor sets the fee based on case complexity and aligner count, which is why ranges overlap across countries.
From $1,500 to $8,000 depending on the country and the package.
Lower prices are usually seen in countries like India or parts of Southeast Asia. Higher prices are more typical in the US, Western Europe, and Japan.
Traditional braces, metal or ceramic
Braces use small brackets bonded to the teeth and thin wires that are adjusted to move teeth into place. Ceramic brackets can blend with tooth color. Advantages of braces are very broad capability and precise control, which helps for rotations, vertical changes, and complex bite corrections. Disadvantages are visibility, more food trapping, and the need for extra cleaning, with occasional rubbing or poking wires. Average treatment duration is often one to two years, longer for very complex cases. Braces are recommended for mild to very complex tooth and bite problems when full control is needed.
Lingual braces, brackets on the tongue side
Lingual braces are fixed to the inner surfaces of the teeth, so they are not seen when you smile. They move teeth in ways similar to regular braces. Advantages of lingual braces are true invisibility in daily life and a wide range of correction. Disadvantages are a higher chance of early speech changes and tongue soreness, harder cleaning, longer visits, and higher cost. Average treatment duration is often similar to braces on the outside. Lingual braces are recommended for people who need comprehensive correction and strongly prefer a hidden appliance, and who can adapt to the early speech and cleaning challenges.
Active retainers, limited tooth movement appliances
Active retainers are removable devices designed to make small front tooth changes, then hold the result. An example is the Inman Aligner, which uses gentle springs to nudge front teeth into line. Advantages are quick results for minor issues and easy removal for eating and cleaning. Disadvantages are that they are not for full bite correction, speech may feel different at first, and results depend on wearing the device as directed. Average treatment duration is usually weeks to a few months in suitable minor cases. Active retainers are recommended for small crowding or relapse of front teeth when the bite is otherwise acceptable.
Functional appliances, growth guidance in children and teens
Functional appliances, such as the Twin Block or Herbst, posture the lower jaw forward during growth. They use muscle action and jaw position to help correct an overbite caused mainly by a small or retrusive lower jaw. Advantages are the potential to improve jaw relationships during the growth spurt and sometimes reduce the need for later extractions or surgery. Disadvantages are that they work best only while a child is still growing and, for removable versions, success depends on daily wear. Average treatment duration is often six to twelve months for the growth phase, followed by a separate phase with braces or aligners to refine tooth positions. Functional appliances are recommended for growing patients with an overbite mainly due to a small lower jaw.
Orthognathic surgery, corrective jaw surgery
Orthognathic surgery repositions the upper jaw, the lower jaw, or both to correct bone problems that orthodontics alone cannot fix. It is almost always combined with orthodontics before and after surgery. Advantages are that it addresses the root skeletal problem and can improve bite function, facial balance, and sometimes airway in suitable cases. Disadvantages are that it is major surgery with recovery time and the total care timeline is long because braces or aligners are needed before and after. Average total duration is commonly two to three years including all orthodontic phases. Orthognathic surgery is recommended for adults and some older teens with significant jaw size or position differences or with severe bite problems that cannot be corrected well with orthodontics alone.
| Method | How it works | Main advantages | Main disadvantages | Average duration | Best for |
|---|---|---|---|---|---|
| Clear aligners | Series of removable clear trays worn most of the day move teeth in small steps | Discreet, removable, easier cleaning | Needs strong wear discipline, some complex moves harder | About 6 to 24 months | Mild to moderate crowding or spacing, motivated wearers (American Association of Orthodontists, PMC) |
| Traditional braces | Fixed brackets and wires guide teeth into place | Works for the widest range, precise control, not wear dependent | Visible, cleaning is harder, occasional pokes or breakages | About 18 to 24 months on average | Mild to very complex problems including bite corrections (nhs.uk) |
| Lingual braces | Braces bonded on the inner tooth surfaces | Hidden from view, comprehensive correction | Early speech issues and tongue soreness, harder cleaning, higher cost | Often similar to regular braces | People needing full correction and a hidden appliance (PMC) |
| Active retainers | Retainers designed for small active movements then retention | Fast for small changes, removable | Not for full correction, relies on wear | Weeks to a few months | Minor front tooth crowding or relapse (PubMed) |
| Functional appliances | Use jaw posture and muscle action during growth to guide jaw position | Can improve jaw relationship during growth in selected cases | Works mainly in growing patients, wear dependent, effect size varies across studies | About 6 to 12 months plus later braces or aligners | Children and teens with overbite due to a small lower jaw (jida.scholasticahq.com, PMC) |
| Orthognathic surgery | Surgically repositions jaws, with orthodontics before and after | Corrects skeletal problems, improves function and balance | Major surgery, long total timeline, surgical risks | Often 2 to 3 years including orthodontics | Significant jaw discrepancies and severe bites (Cleveland Clinic, aaoms.org) |
| Dental veneers | Thin shells bonded to fronts of teeth, cosmetic only | Rapid cosmetic change in shape and color | Irreversible if enamel removed, does not fix bite, may need replacement | Usually 2 to 3 visits | Cosmetic masking when alignment and bite are acceptable (mouthhealthy.org) |
American Association of Orthodontists, Braces
Patient information on how braces work, materials available, and the goals of treatment, confirming braces are used to correct a wide range of bite and alignment problems.
American Association of Orthodontists, Clear aligners
Explains how clear aligners move teeth in small steps, the need to wear them about 22 hours per day, and how sequential trays guide movement.
AAO, Braces vs clear aligners
States there is no single best appliance for everyone, the choice depends on goals and case complexity, and all patients need retainers.
Meta analysis, A comparison of treatment effectiveness between clear aligners and fixed appliances, 2019
Both methods effectively treat malocclusion, aligners may shorten time and help segmented movements, braces show advantages for certain complex movements and occlusal contacts.
Systematic review, Efficacy of clear aligner therapy over conventional fixed appliances, 2024
Aligners are an effective alternative for many cases, with ongoing research about limits and case selection.
Review, The differential impact of clear aligners and fixed appliances on periodontal health, 2025
Narrative synthesis suggests aligners can ease plaque control and soft tissue comfort, although treatment choice should still be based on case needs.
NHS, Braces and orthodontics
Public guidance on what braces do, appointment frequency, and typical durations from about 12 months to over 2 years depending on complexity.
Lingual orthodontics implications, 2024
Explains benefits of hidden placement and common downsides such as early speech difficulty and tongue soreness, with technical considerations for case selection.


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