Orthodontic treatment is the process of moving teeth and correcting jaw alignment using appliances like braces or clear aligners. It addresses a range of bite problems, from crowded teeth to misaligned jaws, and typically takes 6 to 36 months depending on the complexity of the case. While most people associate orthodontics with straighter teeth, the treatment also improves how you chew, speak, and care for your teeth long-term.
What Orthodontics Actually Corrects
Orthodontics is a dental specialty focused on diagnosing, preventing, and correcting misalignment of the teeth and jaws. The technical term for a misaligned bite is malocclusion, and it comes in several forms:
- Overbite: Your upper teeth overlap your lower teeth more than they should when you close your mouth.
- Underbite: Your lower front teeth extend beyond your upper front teeth.
- Crossbite: Some of your upper teeth sit inside your lower teeth rather than outside them.
- Crowding: Your teeth are too large for the available space in your jaw, causing them to overlap or twist.
These issues can develop because of genetics, childhood habits like thumb-sucking, early loss of baby teeth, or simply the way your jaw grew. Some people have a combination of problems, like crowding in the lower arch along with an overbite.
How Teeth Actually Move
Orthodontic appliances work by applying constant, gentle pressure to your teeth. That pressure triggers a biological response in the bone surrounding each tooth root. On the side where pressure pushes the tooth against the bone, specialized cells break down a small amount of bone tissue to create space. On the opposite side, where the tooth is pulling away, other cells build new bone to fill the gap. This simultaneous breakdown and rebuilding is why teeth can shift position without becoming loose or damaged, and it’s why treatment takes months rather than days. The bone needs time to remodel safely at each stage.
Types of Appliances
The four main options differ in visibility, comfort, and cost.
Metal Braces
Traditional metal braces use brackets bonded to each tooth and connected by a wire. They remain the most common and generally the most affordable option, ranging from $3,000 to $7,500. Metal braces can handle the widest range of cases, including severe crowding and complex bite corrections.
Ceramic Braces
These work the same way as metal braces but use tooth-colored or clear brackets that blend in more with your teeth. That less noticeable appearance comes at a slightly higher cost: $4,000 to $8,000.
Clear Aligners
Clear aligners like Invisalign are removable plastic trays that you swap out every one to two weeks as your teeth shift. Most people pay $5,000 to $7,000, though the full range runs $3,000 to $9,000. The biggest practical advantage is that you can take them out to eat and brush your teeth, which makes oral hygiene simpler during treatment. They work well for mild to moderate cases but may not be suitable for complex jaw corrections.
Lingual Braces
Lingual braces are bonded to the back surfaces of your teeth, making them invisible from the front. They’re the most expensive option at $8,000 to $13,000 and can take some adjustment since they sit against your tongue.
What Happens at Each Stage
Orthodontic treatment follows a predictable sequence, though the timeline varies by case.
It starts with a consultation where the orthodontist evaluates your teeth, jaw alignment, and facial structure. You’ll likely have X-rays taken, including a panoramic view of all your teeth and a side-profile image of your skull that shows how your jaws relate to each other. Many offices now use 3D scans instead of the traditional putty impressions, which gives the orthodontist a digital model to plan your treatment precisely. This planning phase typically takes up to four weeks.
Next comes appliance placement. If you’re getting braces, brackets are bonded to your teeth and connected with a wire. If you’re using clear aligners, you’ll receive your first set of trays. Some patients, especially younger ones, may also get a palatal expander or another device to address jaw width before the main alignment work begins. This step usually takes one to two appointments over a week or two.
The active treatment phase is where most of the time is spent: anywhere from 6 to 36 months. During this period, you’ll visit the orthodontist every 4 to 8 weeks for adjustments (tightening wires or receiving new aligner trays) and progress checks. Mild cases like minor crowding may wrap up in under a year. More complex situations involving significant bite correction often take closer to two or three years.
Why Retention Matters
Once your braces come off or you finish your last aligner tray, the work isn’t over. Your teeth have a natural tendency to drift back toward their original positions, especially in the first year or two. That’s why every orthodontic case ends with a retainer.
Removable retainers are the most common type. These are either clear plastic trays (similar in appearance to aligners) or a molded acrylic piece with a wire that sits across your front teeth. Research shows that wearing a removable retainer only at night is generally just as effective as wearing it full-time, and nighttime-only use may even help the retainer last longer. Your orthodontist will typically recommend nightly wear for at least the first 12 to 24 months after treatment, though many people continue wearing a retainer a few nights a week indefinitely to keep results stable.
Fixed retainers are thin wires bonded to the back of your front teeth, usually on the lower arch. They stay in place permanently and require no daily decision-making on your part, but they do demand more careful cleaning. You’ll need to floss around the wire using threaders or special brushes to prevent plaque buildup.
Health Benefits Beyond Appearance
Straight teeth are easier to brush and floss because there are fewer tight overlapping areas where plaque hides. Properly aligned teeth reduce your risk of cavities and gum disease over time. Correcting a misaligned bite can also relieve jaw pain associated with TMJ disorders, since the jaw joint functions more efficiently when the upper and lower teeth meet evenly. Some people notice improvements in chewing and speech as well, particularly if crowding or a significant overbite was interfering with how their tongue and lips moved against their teeth.
When To Start
The American Association of Orthodontists recommends that children have their first orthodontic screening by age 7. At that age, a mix of baby teeth and permanent teeth is present, and an orthodontist can spot developing problems with jaw growth or tooth spacing early enough to intervene simply. Early treatment doesn’t always mean braces right away. Often it means monitoring growth and stepping in only if a problem is getting worse.
That said, there’s no upper age limit for orthodontic treatment. Adults make up a growing share of orthodontic patients, and the biological process of bone remodeling that allows teeth to move works at any age. Treatment in adults may take slightly longer because bone density increases with age, but the results are just as stable. The main factor in deciding when to start is whether your teeth and gums are healthy enough to handle the process, something your orthodontist will assess at that first consultation.