Medicare doesn’t cover routine dental care because the law that created it in 1965 specifically excluded it. Section 1862(a)(12) of the Social Security Act bars Medicare from paying “for services in connection with the care, treatment, filling, removal, or replacement of teeth or structures directly supporting the teeth.” That exclusion has never been repealed, which means nearly 60 years later, cleanings, fillings, crowns, dentures, and extractions still fall outside the program. The result: 56% of Americans 65 and older have no dental coverage at all.
Why the 1965 Law Left Dental Out
When Congress designed Medicare, it modeled the program after the private health insurance plans most Americans already had through employers. Those plans rarely covered dental care in the 1960s, so lawmakers didn’t include it either. The goal was to protect older Americans from the costs of hospital stays and physician visits, which were seen as the major financial threats. Dental care was treated as a separate category, more like routine maintenance than medical necessity.
There was also a practical concern about cost. Adding dental benefits to a brand-new entitlement program would have raised the price tag significantly, and Congress was already navigating fierce political opposition to Medicare itself. Excluding dental (along with vision and hearing) kept the program’s scope narrow enough to pass. The assumption at the time was that dental problems, while uncomfortable, didn’t carry the same life-threatening urgency as heart attacks or cancer. That assumption has aged poorly, but the statute remains unchanged.
The Exceptions That Do Exist
Medicare will pay for dental work in a handful of situations where it’s directly tied to another covered medical treatment. The key phrase CMS uses is “inextricably linked to the clinical success” of a Medicare-covered procedure. In practice, that covers scenarios like these:
- Before organ transplants or bone marrow transplants: a dental exam and treatment of any oral infections, because mouth bacteria can cause dangerous complications in immunosuppressed patients.
- Before cardiac valve replacement or repair: same logic, since oral bacteria can infect heart valves.
- During cancer treatment: dental care before and after head and neck radiation, chemotherapy, or CAR T-cell therapy, plus treatment for dental complications caused by those therapies.
- Kidney dialysis patients: dental exams and infection treatment tied to dialysis for end-stage renal disease.
- Jaw fractures and tumors: dental ridge reconstruction during tumor removal surgery, or stabilizing teeth as part of treating a broken jaw.
The original 1965 law also allowed one narrow exception: Medicare could pay for dental services requiring inpatient hospitalization, either because of a severe underlying medical condition or because the dental procedure itself was complex enough to need a hospital setting. But none of these exceptions help with the dental care most seniors actually need, like cleanings, cavity fillings, or dentures.
What Poor Oral Health Costs Seniors
The science on oral health and chronic disease has advanced dramatically since 1965. Periodontal disease, the serious gum infection that damages soft tissue and bone, is now recognized as an independent risk factor for cardiovascular disease, diabetes complications, pulmonary infections, and possibly dementia. The link to heart disease is particularly well established. Since the first study connecting dental infections to coronary artery disease in 1989, multiple systematic reviews have confirmed that periodontitis increases the risk of future cardiovascular problems.
The relationship runs both directions with diabetes. People with diabetes tend to have worse periodontal disease, and untreated gum disease makes blood sugar harder to control. For seniors managing one or both of these conditions, skipping dental care isn’t just a comfort issue. It can worsen the very diseases Medicare does cover, driving up costs for hospitalizations and medications that the program ends up paying for anyway.
What Dental Care Costs Without Coverage
Without insurance, the price of common procedures adds up fast on a fixed income. A full set of dentures runs anywhere from $600 for a basic set to $8,000 for high-quality ones, and most seniors who need them land somewhere in the $1,000 to $3,000 range. A single dental crown costs $500 to $2,000 depending on the material. Root canals range from $500 to $1,500 per tooth, with molars at the higher end. These are per-procedure costs, and many older adults need multiple treatments at once after years of deferred care.
Coverage Through Medicare Advantage
Medicare Advantage plans, the private insurance alternative to original Medicare, have stepped into the gap. About 98% of individual Medicare Advantage enrollees are now in plans that offer some form of dental benefit. That sounds comprehensive, but the details vary enormously. Some plans cover only preventive services like cleanings and X-rays. Others include restorative work like crowns and dentures, with 86% of enrollees having access to what’s classified as comprehensive dental coverage.
The catch is that most of these plans impose annual dollar caps on how much they’ll pay toward dental care, require you to use specific provider networks, and still charge cost-sharing for individual services. A plan might advertise dental coverage but cap its annual payout at $1,000 or $1,500, which won’t stretch far if you need a crown and a root canal in the same year. If you’re considering Medicare Advantage primarily for dental benefits, comparing the annual maximums and cost-sharing details matters more than whether “dental” appears on the list of included benefits.
Other Ways to Get Coverage
Seniors with low incomes may qualify for both Medicare and Medicaid, and Medicaid dental benefits have expanded significantly in recent years. As of 2025, 38 states plus Washington, D.C. offer enhanced adult dental benefits through Medicaid, covering a mix of diagnostic, preventive, and restorative procedures. Six states limit Medicaid dental coverage to emergency situations only, and Alabama provides no adult dental coverage at all. If you qualify for Medicaid in a state with enhanced benefits, this can fill the gap that Medicare leaves open.
Standalone dental insurance plans are another option. These are purchased separately from Medicare and typically cost $20 to $50 per month, with annual maximums that usually cap at $1,000 to $1,500. Dental discount plans, which aren’t insurance but negotiate reduced rates with participating dentists, offer a lower-cost alternative for seniors who need only occasional care. Community health centers and dental schools also provide services on a sliding fee scale in many areas.
Why the Exclusion Hasn’t Changed
Multiple bills have been introduced in Congress over the years to add dental, vision, and hearing coverage to Medicare Part B. The most prominent recent effort came during the 2021 Build Back Better negotiations, which initially included a Medicare dental benefit before it was stripped from the final package. The core obstacle is cost. Adding comprehensive dental coverage for all 67 million Medicare beneficiaries would carry a price tag in the tens of billions of dollars annually, and Congress has not found the political consensus to fund it.
There’s also institutional inertia. The separation between medical care and dental care is embedded not just in Medicare’s statute but in how insurance markets, professional licensing, and provider systems are organized. Changing Medicare’s dental exclusion would require legislation, not just a regulatory update, meaning it needs to pass both chambers of Congress and be signed by the president. Until that happens, the 1965 exclusion remains the default.