Medicaid does cover braces, but only under specific conditions: the patient is under 21, and an orthodontist has documented that the treatment is medically necessary rather than cosmetic. Federal law requires every state Medicaid program to provide this coverage for children through the Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) benefit, though states set their own qualifying criteria and approval procedures.1Medicaid.gov. Early and Periodic Screening, Diagnostic, and Treatment For adults, the answer is almost always no.
What “Medically Necessary” Actually Means
Medicaid will not pay to straighten teeth that look crooked but function normally. Coverage is reserved for conditions severe enough to interfere with chewing, speech, or oral health. Qualifying problems generally include severe misalignment of the teeth or jaw that makes eating difficult, bite problems that damage tissue inside the mouth, speech impairments linked to tooth or jaw positioning, and craniofacial conditions such as cleft palate.
Most states use a clinical scoring system called the Handicapping Labio-Lingual Deviation (HLD) index to draw the line between functional and cosmetic. The orthodontist measures specific features of the bite, assigns points, and the total either crosses the state’s threshold or it doesn’t. Thresholds vary by state. Certain conditions bypass the scoring and qualify automatically, including cleft palate, deep overbites damaging the roof of the mouth, significant crossbites causing tissue destruction, and severe overjet where the upper teeth protrude well beyond the lower.
Adults Rarely Qualify
The EPSDT benefit is what opens the door for children. The underlying statute defines EPSDT dental services broadly, covering pain relief, tooth restoration, dental health maintenance, and any additional treatment found medically necessary to correct or improve a diagnosed condition.2Office of the Law Revision Counsel. 42 USC 1396d – Definitions
Adults get no such guarantee. Federal law does not require states to offer any dental coverage to adult Medicaid enrollees, and sets no minimum standards for the states that do.3Medicaid.gov. Dental Care A handful of states provide limited adult dental benefits, but orthodontic coverage for adults is extraordinarily rare and typically reserved for trauma cases, surgical correction of jaw deformities, or conditions tied to a documented disability. If you are over 21, do not plan on Medicaid paying for your braces.
Getting Approval Before Treatment Starts
Even with a clearly qualifying condition, Medicaid will not pay for braces without prior authorization. The process usually starts at a regular dental visit, where the dentist identifies a potential orthodontic problem and refers the patient to an orthodontist. The orthodontist performs a full evaluation, assembles diagnostic records (X-rays, dental models, photographs, and a completed HLD scoring form), and submits a prior authorization request to the state Medicaid agency or the family’s managed care plan.
The request has to include a proposed treatment plan with the diagnosis, the expected length of treatment, and evidence of a favorable prognosis. Some states also require documentation that the patient is likely to comply with the full treatment schedule, which matters because braces typically stay on for one to three years.
How Long a Decision Takes
Federal regulations require managed care plans to issue a decision on a standard prior authorization within 7 calendar days, with a possible extension of up to 14 additional days if more information is needed.4eCFR. 42 CFR 438.210 – Coverage and Authorization of Services Truly urgent requests must be decided within 72 hours, but braces are planned treatments and rarely meet that standard.
An approval letter will list the covered services and how long the authorization stays valid, usually about 12 months. If treatment runs longer, the orthodontist may need to request reauthorization. A denial will come with a written explanation and instructions for appealing.
What Types of Braces Are Covered
Medicaid programs overwhelmingly limit coverage to traditional metal braces. These bracket-and-wire systems are the most clinically proven and cost-effective option for correcting severe malocclusions. Clear aligners, ceramic braces, and lingual braces bonded to the back of the teeth are treated as cosmetic upgrades and are almost never covered. If your child qualifies, expect metal.
Ongoing care during treatment is generally included in the authorization: adjustments, tightening appointments, and repairs to broken brackets or wires. Retainers after treatment may also be covered for children under 21, since they preserve the results of the orthodontic correction, but coverage for post-treatment appliances varies by state. Ask about retainer coverage before braces come off, not after.
If You Are Denied
Denials happen, and they are not the final word. The most common reasons are an HLD score below the state’s threshold, incomplete documentation, or a finding that the condition does not meet the medical necessity standard. You have the right to challenge that decision.
Internal Appeal
If your child is enrolled in a Medicaid managed care plan, start with an internal appeal to that plan. Federal rules give you 60 calendar days from the date on the denial notice to file, either in writing or by phone.5eCFR. 42 CFR 438.402 – General Requirements Attach anything that strengthens the case: updated X-rays, a letter from the orthodontist detailing functional limitations, records from a speech therapist if speech is affected.
One deadline catches families off guard. If the denial involves stopping or reducing a service that was already approved and underway, you can ask that treatment continue while the appeal is pending, but only if you file within 10 calendar days of the plan sending the denial notice, or before the change takes effect, whichever is later.6eCFR. 42 CFR 438.420 – Continuation of Benefits While the MCO Appeal and State Fair Hearing Are Pending Miss that window and the plan can stop paying before the appeal is decided.
State Fair Hearing
If the plan upholds its denial, you can request a state fair hearing, an independent review by the state Medicaid agency. Every state must offer this option when a claim for services is denied.7eCFR. 42 CFR 431.220 – When a Hearing Is Required You have between 90 and 120 calendar days from the plan’s written appeal resolution to request the hearing, depending on your state.8eCFR. 42 CFR 438.408 – Resolution and Notification
Fair hearings reward thorough documentation. Bring the orthodontist’s clinical assessment, the HLD scoring form, supporting medical records, and a clear explanation of how the condition affects daily life. An orthodontist willing to provide a written statement or attend the hearing can shift the outcome.
Losing Eligibility or Moving Mid-Treatment
Braces stay on for one to three years, and situations change. Two disruptions come up often.
Losing Medicaid Coverage
When a child loses Medicaid while braces are still on, financial responsibility shifts. Rules differ by state and sometimes by the arrangement between the orthodontist and Medicaid. In some states, the orthodontist can bill Medicaid for the remaining balance after the patient has been ineligible for a set number of consecutive months. In others, the family owes the rest out of pocket. The orthodontist is not required to remove the braces immediately, but is not obligated to keep treating for free either. If eligibility looks shaky, talk to the billing office before it becomes urgent.
Moving to Another State
Medicaid coverage does not follow you across state lines. You must end coverage in the old state and apply in the new one. The new state may set a different HLD threshold, list different auto-qualifying conditions, or want different paperwork. An orthodontic authorization from your old state carries no weight in the new one.
Processing a fresh application can take anywhere from a week to three months, and during that gap your child has no coverage for ongoing appointments. Apply as soon as possible after the move. Some states allow retroactive Medicaid coverage for up to three months before the application date, which may help pick up appointments during the transition. Confirm whether your new state offers retroactive coverage and whether it extends to orthodontic services.
Finding an Orthodontist Who Takes Medicaid
Not every orthodontist accepts Medicaid, and the ones who do sometimes have long wait lists. Reimbursement rates for orthodontic treatment are considerably lower than what private insurance or self-pay patients cover, which thins the provider pool. Start with your state Medicaid agency’s online provider directory or call the agency directly. Your child’s general dentist often knows which local orthodontists are currently taking Medicaid patients.
If the nearest participating orthodontist is far away, plan for the travel. Braces require adjustment visits every four to eight weeks throughout treatment. Missed appointments delay progress, and in some states, repeated noncompliance with the schedule can lead the orthodontist to request permission to remove the braces early, ending covered treatment for good.
Because Medicaid is jointly administered by the federal government and each state, your experience depends heavily on where you live. States set their own scoring thresholds, define their own auto-qualifying conditions, choose their required documentation, and decide how strictly to read medical necessity. Contact your state Medicaid agency directly, or work with an orthodontist who regularly handles Medicaid cases in your state, to learn what your specific program requires.