There is no minimum or maximum age requirement for braces. Children as young as 6 or 7 sometimes receive early orthodontic appliances, most people start comprehensive treatment between ages 10 and 14, and adults of any age can get braces as long as their gums and bone are healthy. The right time depends less on a number and more on what’s happening in your mouth.
Why Age 7 Is the First Checkpoint
The American Association of Orthodontists recommends that every child be screened by an orthodontist by age 7. That doesn’t mean braces at 7. It means that by this age, enough permanent teeth have come in for an orthodontist to spot developing problems with jaw alignment, crowding, or bite. A panoramic X-ray can also reveal issues hiding below the gumline, like missing, extra, or impacted teeth that would change the treatment plan later.
Most kids who get screened at 7 are told to wait. The orthodontist monitors growth and lets the remaining baby teeth fall out naturally. But for certain problems, early action makes a real difference.
When Early Treatment Starts (Ages 6 to 10)
Some bite problems are easier to fix while the jaw is still growing. This early phase of treatment, sometimes called Phase 1 or interceptive treatment, typically happens between ages 6 and 10 and uses simple appliances (not necessarily full braces) for a limited time.
The conditions that benefit most from early intervention include posterior crossbites (where upper back teeth sit inside the lower teeth), certain underbites, open bites, and significant crowding. For underbites in particular, research shows that treatment before age 10 produces better skeletal changes than waiting, with the strongest results seen when treatment begins around age 5 in the baby-tooth stage. Early correction can guide jaw growth, make space for incoming permanent teeth, and sometimes eliminate the need for more complex treatment during the teen years.
The Most Common Age for Full Braces
Most orthodontic problems are best treated after all or most of the permanent teeth have erupted. That typically happens between ages 10 and 14, which is why this window is the most popular time to start comprehensive braces. The jaw is still growing, bone is responsive to pressure, and the cells that remodel bone around tooth roots are highly active. Teeth move relatively quickly, and side effects like root shortening or pain tend to be less common than in adults.
If a child had Phase 1 treatment earlier, Phase 2 (full braces) usually follows once the remaining permanent teeth are in, often around age 11 to 13. Kids who didn’t need early intervention simply start here.
Braces as an Adult: No Age Limit
There is no upper age limit for orthodontic treatment. More than a third of patients at some orthodontic practices are adults, and people in their 40s, 50s, 60s, and beyond routinely get braces or clear aligners. The only real prerequisites are healthy gums and adequate bone support. Conditions like uncontrolled gum disease or significant bone loss need to be addressed first, but age alone is never a disqualifier.
A systematic review covering nearly 4,400 patients found no significant difference in overall treatment duration between adults and adolescents for standard fixed braces. The average difference was less than one month. One exception: correcting certain impacted teeth (specifically canines displaced toward the palate) took about four months longer in adults than in adolescents.
How Adult Treatment Differs Biologically
While treatment timelines are broadly similar, the biology is different. Adult jawbone is denser than adolescent bone, and the cells responsible for breaking down and rebuilding bone around tooth roots activate more slowly. This means teeth often move at a slower pace during the first few weeks of treatment, even if the total duration ends up comparable.
The tissue connecting teeth to bone (the periodontal ligament) also behaves differently with age. In adults, this tissue takes longer to reorganize after force is applied, shows more inflammatory activity, and has reduced capacity to repair itself. Practically, this means adults are somewhat more likely to experience root shortening, heightened soreness after adjustments, and reduced blood flow to the tooth’s inner nerve. None of these are reasons to avoid treatment, but they do mean your orthodontist may use lighter forces and schedule more gradual adjustments.
Types of Braces by Age Group
- Young children (6 to 10): Palate expanders, space maintainers, partial braces on a few teeth, or facemask appliances for underbite correction. These are short-term, typically 6 to 18 months.
- Teens (10 to 18): Traditional metal brackets, ceramic (tooth-colored) brackets, or clear aligners. Treatment averages 18 to 24 months for moderate cases.
- Adults (18+): All the same options as teens, plus lingual braces (placed behind the teeth). Clear aligners are especially popular with adults for cosmetic reasons. Treatment length is similar to teens for most corrections.
What Actually Determines Readiness
Rather than a specific birthday, orthodontists look at dental development. The key milestones are the eruption of the first permanent molars and upper front teeth (usually by age 7 for screening purposes) and the loss of most or all baby teeth (usually by ages 11 to 13 for full treatment). X-rays showing root development and remaining growth potential also factor in.
For adults, readiness depends on periodontal health. If you have active gum disease, that needs treatment first. If you’ve lost bone around certain teeth, your orthodontist will evaluate whether those teeth can safely be moved. Restorations like crowns or implants don’t prevent treatment, though they may require some planning adjustments. If your gums and bone are in reasonable shape, you’re a candidate regardless of age.