Medicaid covers braces for children and teens under 21, but only when the treatment is medically necessary. Cosmetic straightening is not covered. Each state sets its own criteria for what counts as medically necessary, so the exact requirements depend on where you live. For adults, orthodontic coverage through Medicaid is rare and extremely limited.
How Children Qualify for Coverage
Federal law requires every state’s Medicaid program to provide comprehensive health services to enrolled children under 21 through a benefit called Early and Periodic Screening, Diagnostic and Treatment (EPSDT). This includes orthodontic services, but with a key restriction: braces must be medically necessary to prevent disease, promote oral health, or restore function. A child who simply wants straighter teeth for appearance won’t qualify.
To determine medical necessity, most states use a scoring system or a list of conditions that automatically qualify a child. The details vary by state, but the general framework is similar everywhere. Your child’s dentist or orthodontist will evaluate their bite and jaw alignment, document the findings, and submit that information to your state’s Medicaid program for approval before treatment can begin.
Conditions That Typically Qualify
Certain conditions are severe enough that most states approve them automatically, without requiring a scoring evaluation. These “auto-qualifiers” generally include:
- Cleft lip, cleft palate, or other craniofacial anomalies: structural birth defects affecting the jaw or face.
- Severe overbite or underbite: when the upper teeth protrude significantly beyond the lower teeth (often 7 to 9 mm or more, depending on the state) or the lower jaw extends well past the upper.
- Deep overbite with tissue damage: when the lower front teeth bite into the gum tissue behind the upper teeth or cause damage to the palate.
- Crossbite affecting multiple teeth: when upper teeth close inside the lower teeth, sometimes with no functional contact between the back teeth at all.
- Impacted permanent teeth: teeth other than wisdom teeth that are blocked from erupting normally and need orthodontic help to come in.
- Open bite: a gap of 4 mm or more between the upper and lower teeth when the jaw is closed, making it difficult to bite into food.
- Multiple congenitally missing teeth: when a child is permanently missing several teeth that never developed.
If your child doesn’t have one of these auto-qualifying conditions, most states use a numerical scoring tool to measure how severe the bite problem is. One common version is the Handicapping Labio-Lingual Deviation (HLD) index, which assigns points based on specific measurements of tooth position, spacing, and jaw alignment. In New Mexico, for example, a child needs a score of 26 or higher to qualify. Each state sets its own threshold.
Even below the scoring threshold, some states will consider coverage if the bite problem is causing a documented medical condition (like malnutrition from an inability to chew properly) or a speech disorder that hasn’t responded to speech therapy alone. In those cases, the orthodontist needs supporting records from physicians or speech therapists showing that the problem existed before the orthodontic request and hasn’t improved with other treatment.
What About Adults?
Adults on Medicaid face a much harder path to getting braces covered. Federal law does not require states to offer any dental benefits to adults, let alone orthodontic care. States have complete flexibility to decide what adult dental services, if any, they’ll pay for. Most states that do offer adult dental coverage limit it to emergency care, extractions, and basic restorative work. Orthodontics for adults is covered in very few states and almost always requires exceptional medical circumstances, such as jaw reconstruction after trauma or treatment tied to a craniofacial condition.
If you’re an adult on Medicaid hoping to get braces, contact your state’s Medicaid office directly to ask whether orthodontic services are included in your plan. In most cases, the answer will be no.
Finding an Orthodontist Who Accepts Medicaid
Even with approval in hand, finding a provider can be a challenge. Nationally, only about 43% of dentists participate in Medicaid, and orthodontists who accept it are an even smaller subset. In some states, the numbers are much worse. More than half of dentists in North Carolina and nearly three-quarters in Virginia don’t participate in the program at all.
The main reason is money. Medicaid reimbursement rates are significantly lower than what private insurance or out-of-pocket patients pay, and the administrative paperwork is heavier. Many orthodontists find that accepting Medicaid isn’t financially sustainable for their practice. This means families sometimes face long wait lists or need to travel to find a participating provider. Your state Medicaid office or managed care plan can provide a list of enrolled orthodontists in your area, but calling ahead to confirm they’re still accepting new Medicaid patients is worth the effort.
Out-of-Pocket Costs to Expect
When Medicaid approves braces, it covers the orthodontic treatment itself. However, there can still be gaps. Some states don’t cover every step of the process equally, and if your child needs supplemental procedures that fall outside what Medicaid considers orthodontic treatment, you could be asked to pay for those separately. The specifics depend entirely on your state’s benefit design.
There should be no copay for EPSDT services for children in most cases, but it’s worth confirming with both your state Medicaid program and the orthodontist’s office before treatment starts. Ask for a written breakdown of what Medicaid will cover and what, if anything, you’d owe. Surprises mid-treatment are common when families skip this step.
What Happens if Coverage Is Denied
If your child’s orthodontic claim is denied, you have the right to appeal. The process must be done in writing, and the word “appeal” should appear prominently in the letter and on any cover sheet. A phone call won’t count.
The most important thing you can do is include additional documentation that strengthens the case for medical necessity. This means X-rays, photographs of the teeth and bite, dental charts, and a detailed written narrative from the orthodontist explaining exactly why braces are needed for health reasons, not cosmetic ones. If the original submission was thin on evidence, a well-documented appeal can make the difference.
Some plans allow up to three levels of appeal, each reviewed by a different consultant. Timelines vary, but many plans require appeals to be filed within six months of the original denial. Check your specific plan’s rules carefully, because missing a deadline can close the door permanently. If you exhaust all levels of appeal through the insurance plan and are still denied, you can request a fair hearing through your state’s Medicaid agency, which is an independent review of the decision.
The Age 21 Cutoff
EPSDT coverage ends when a child turns 21. If your child is approved for braces at 19 and treatment is expected to take two years, the timing matters. States handle this differently. Some will continue covering treatment that was authorized before the birthday, while others cut off payment the moment the enrollee ages out. Starting the approval process early, ideally in the mid-teen years when most orthodontic treatment is appropriate, avoids this problem entirely and gives you a buffer if the initial application is denied and needs to be appealed.