Does dental insurance cover cavities?
Treating a cavity — usually with a filling — is standard restorative care that nearly every dental plan covers, typically as a basic service after your deductible and coinsurance.
What flips the answer
- Covered when
You have a plan with basic restorative services and have met any deductible — the standard covered case.
- Not covered when
Your plan is preventive-only, with no restorative benefit for fillings.
- Not covered when
You've already used up the annual maximum on other dental work this year.
A cavity is tooth decay, and treating it is core dental care rather than cosmetic work. Any plan beyond a preventive-only policy covers cavity treatment, most often as a basic restorative service (a filling), and plans also cover the preventive exams and X-rays that catch cavities early.
You generally owe the deductible and a coinsurance share of the allowed amount, counting against your annual maximum. Fillings are usually reimbursed based on a standard material, so opting for a pricier tooth-colored composite on a back tooth can leave a small balance. Deep decay that reaches the nerve may require a root canal and crown, which are billed under their own rules.
The main exception is a preventive-only plan that covers cleanings and exams but not restorative treatment. Your plan's schedule of benefits shows the tier and percentage that apply to fillings.
That's the general answer. Yours is written in your actual policy.
Drop in your policy or benefits document and get the answer for your exact coverage — with the clause it comes from. Nothing is stored.
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