Is Dental Insurance Worth It? Do the Arithmetic

Whether dental insurance is worth it is not a matter of opinion; it is a small piece of arithmetic that most people never do, because the two numbers it needs sit in different documents. You need what the plan costs over twelve months and what it would actually pay toward the treatment you are actually going to have. Everything else — the brochure adjectives, the network size, the "up to" percentages — is decoration on those two numbers.

Start with the premium, because it is the only certain number

The premium is the one figure you will definitely pay, so it belongs on the left of the page. Published rates are harder to find than you would expect on the individual market, but one programme publishes its whole rate card every year: the 2026 BCBS FEP Dental brochure, put out by the US Office of Personnel Management, sets Self Only cover on its Standard Option at $22.75 a month in the cheapest of its five rating areas and $33.71 in the dearest. The same brochure's High Option runs $42.27 to $62.49 for the same single-person cover.

Those are Federal Employees Dental and Vision Insurance Program rates, available to federal employees and annuitants — not quotes anyone can buy, and not a national average. They are useful here for one reason: they are published, dated and specific, which is exactly what a quote you are given should also be before you compare it to anything.

Turn whatever premium you are quoted into an annual number immediately. A plan is priced monthly and used yearly, and the yearly figure is the one that has to be beaten.

Then work out what the plan would pay, not what it covers

"Covered" and "paid" are different words, and the gap between them is where the disappointment lives. A plan covers a crown; what it pays toward that crown is the allowance for the procedure, times the coinsurance for its class, up to whatever is left of the annual maximum, after any deductible, provided the waiting period has passed.

Work through it in that order with a real treatment plan in front of you. Two check-ups and two sets of X-rays in the routine tier will usually be paid in full in network: the 2026 Covered California Delta Dental PPO Family Dental plan charges adults no charge for oral exams, cleanings and X-rays with an in-network dentist. A filling in that plan's basic tier costs the member 20% after a $50 deductible. A crown sits in the major tier at 50%, and is subject to that plan's six-month enrolment condition before it can be claimed at all.

Add up the plan's side of those numbers, subtract the annual premium, and you have your answer for that year. If the result is negative and your mouth is healthy, the plan is buying you predictability rather than money — which is a legitimate thing to buy, but it should be a decision rather than an accident.

The number that makes the case for a plan is not the maximum

Most people never reach the ceiling they are paying for. The National Association of Dental Plans states on its consumer explainer that between 2014 and 2023 less than 5% of enrollees on average reached their annual benefit maximum; in a release dated 25 November 2025 it reported that among group dental PPO members the share reaching it had risen from 1.7% to 2.9%.

So if you are buying a plan because of its cap, check that you are the kind of person who gets near it. The part of the plan that pays for most people, most years, is the routine tier — the cleanings, exams and X-rays that are covered in full in network under both the plans quoted above. That is unglamorous, and it is where the value usually is.

The same NADP release put the average undiscounted fee per treatment at $188 in 2024, rising to a forecast $194 for 2025, with enrollees using 3.28 services in 2024 and a forecast 3.35 in 2025. Multiply a forecast $194 by 3.35 and you get about $650 of undiscounted treatment in a typical year — arithmetic on their figures, not a figure of theirs — which tells you roughly the scale of what a plan is arranging, not paying, for an average member.

Four situations where the answer is usually no

You are offered cover you will not use before it resets. A benefit year that has three months left in it and a treatment plan that takes five is a mismatch, and the unused part does not travel. Check how your plan defines its year before you assume it matches the calendar.

The work is already in your mouth. Plans commonly exclude what was done before you joined: the Covered California document excludes any single procedure provided prior to the date the enrollee became eligible for services under this plan. Buying after the crown has cracked is usually buying too late for that crown.

The treatment is on the exclusion list. The same plan excludes implants entirely — services for implants, their removal, or other associated procedures — and excludes adult orthodontics. A plan cannot be worth it for a procedure it does not do.

Your dentist is out of network and you will not change. Out-of-network coinsurance is meaningfully worse in both plans quoted here, and in the BCBS brochure the out-of-network annual maximum is lower than the in-network one on both options. A plan judged on its in-network numbers and used out of network is a different plan.

Two situations where the answer is usually yes

The first is a household with children. For a child, cover is not only a financial product: Medicaid's dental benefit for children under EPSDT is an entitlement, and on the Marketplace, healthcare.gov says dental coverage is an essential health benefit for children, so it must be available to buy even though you do not have to buy it. Children's tiers also tend to be built differently — the Covered California plan has no annual maximum and no waiting period at all on its pediatric tiers, and caps a child's out-of-pocket spending at $350 a contract year in network.

The second is a year you can see coming. If a dentist has examined you and written a treatment plan with procedure codes on it, you can price that list against a real schedule of benefits and get a real answer instead of a guess. That is the whole method, and it only works in that order.

What to do before you decide

Get the treatment written down. Ask for the plan's schedule of benefits rather than its brochure. Then take five figures off it — the deductible, the coinsurance for each class, the annual maximum, the waiting periods and the definition of the benefit year — and put them against your list.

If what you actually want is a lower price rather than a payer, that is a different product with a different shape, and it is worth understanding before you dismiss it: see dental insurance versus dental discount plans, part by part. And if the plan you are looking at is described as "full coverage", read what "full coverage" dental insurance really means before you let the phrase do any work in your decision.