Does dental insurance cover mouth guards?
It depends
A custom mouth guard prescribed to treat teeth grinding (a night guard/occlusal guard) is often covered under a plan's basic or major tier — but athletic sport guards are usually excluded.
- Covered when It's a custom occlusal/night guard prescribed to treat grinding or clenching, and your plan covers it under basic or major services within the replacement-frequency limit.
- Not when It's an athletic sports mouth guard, which most plans treat as excluded personal equipment.
- Not when It's an over-the-counter boil-and-bite guard, which isn't submitted to insurance.
What flips the answer
- Covered when
It's a custom occlusal/night guard prescribed to treat grinding or clenching, and your plan covers it under basic or major services within the replacement-frequency limit.
- Not covered when
It's an athletic sports mouth guard, which most plans treat as excluded personal equipment.
- Not covered when
It's an over-the-counter boil-and-bite guard, which isn't submitted to insurance.
Key facts
- Verdict
- It depends
- Applies to
- mouth guards · Dental insurance
- Covered when
- It's a custom occlusal/night guard prescribed to treat grinding or clenching, and your plan covers it under basic or major services within the replacement-frequency limit.
- Not covered when
- It's an athletic sports mouth guard, which most plans treat as excluded personal equipment.
- Verified
- 2026-07-03 · 2 primary sources
'Mouth guard' covers two very different things. A dentist-fabricated occlusal or night guard that treats bruxism (teeth grinding and clenching) is a therapeutic appliance, and many dental plans cover it under basic or major services, paying a share after any waiting period up to the annual maximum.
Custom athletic mouth guards worn for sports are generally treated as preventive personal equipment rather than treatment, and plans commonly exclude them or cover them only for dependent children where a benefit exists. Over-the-counter boil-and-bite guards are not billed to insurance at all.
Even for a covered night guard, plans often limit how often they'll pay for a replacement — for example, once every few years. Whether your guard qualifies, and under which tier, is spelled out in your plan's schedule of benefits.
What people typically pay
For a covered custom night guard, you'll typically owe the coinsurance for its benefit tier after any deductible, with the plan paying up to your annual maximum. The exact share varies widely by plan.
A dentist-fabricated custom occlusal guard without coverage varies by region and lab. Over-the-counter boil-and-bite guards are far cheaper but aren't billed to insurance.
Ranges vary widely by plan, state, and dentist; athletic guards are usually not covered at all for adults.
How to actually get it covered
Confirm your dentist diagnoses bruxism (grinding or clenching) and recommends a custom occlusal/night guard — this framing as treatment, not sports protection, is what makes it eligible.
Call your dental plan's member services and ask whether an occlusal/night guard is covered, under which tier, at what coinsurance, and whether a waiting period still applies.
Ask about the replacement-frequency limit and confirm you're outside any prior guard's window so the claim isn't denied as too soon.
Have the dental office submit a pre-treatment estimate (predetermination) with chart notes documenting grinding, worn enamel, or jaw symptoms before the guard is made.
Once you get the estimate back, proceed with impressions and fabrication, then have the office bill the plan directly and apply your deductible and coinsurance.
If it's denied or excluded, request the written reason and file an appeal with supporting clinical notes if warranted.
Common questions
How do I know if my plan covers a night guard under basic or major services?
Check your plan's schedule of benefits and look for an occlusal guard or 'appliance for bruxism' line. Which tier it falls under determines your coinsurance, and basic services are often reimbursed at a higher percentage than major services. If it isn't listed at all, the plan may exclude it, and it's worth calling member services to confirm before your dentist fabricates one.
Will my plan pay for a sports mouth guard if I'm an adult athlete?
Usually not — athletic guards are generally treated as preventive personal equipment and are commonly excluded for adults. Where any benefit exists, it's often limited to dependent children, and even then a plan may pay only a limited amount. A boil-and-bite guard from a store isn't billed to insurance.
How often will insurance replace a covered night guard?
Plans often cap replacement to once every few years, though the exact window varies by plan. If yours wears out or breaks before that window closes, the plan may deny the replacement as too soon. Your schedule of benefits states the precise frequency limit for the appliance.
Does a waiting period apply before a night guard is covered?
Often it can. Stand-alone dental plans in particular can have waiting periods before they start to cover services for adults, and a night guard usually falls under basic or major services. A guard fabricated during a waiting window may be denied even though the appliance itself qualifies, so get details from the insurer about waiting periods before scheduling the impressions.
What can I do if my night guard claim is denied?
First confirm why — a denial for the wrong tier or an expired frequency limit is different from a flat exclusion. If it was denied as not medically necessary, have your dentist resubmit with chart notes documenting bruxism, worn enamel, or clenching. You can file a formal appeal with the insurer. Note that if you pay out of pocket, dental treatment is generally a deductible medical expense, though FSA/HSA eligibility depends on your account's rules.
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