Insurance · Updated 2026-09-08 · 5 min read

How often will insurance replace a crown?

Five, seven or ten years depending on the plan, measured from the existing crown's placement date, with an unserviceability test on top of the clock.

Five years, seven years or ten years — the published documents carry all three, and the number is the plan's rather than the carrier's. The clock is usually per tooth, and it starts at the existing crown's placement or cementation date rather than at the claim date or the plan year — but some plans count per arch instead. Many plans stack a second condition on top of the clock: the existing crown must also be unserviceable, so an old crown that is still working is not replaceable simply because the years have passed. Across the practices Kaylie serves in September 2026, 1.6% of Delta Dental D2740 lines were refused for frequency, and refusals for replacing a restoration too soon numbered 46 lines across the practices measured — crown replacement is refused rarely but it is refused on the two conditions together, not on the count alone.

What we measured

Every claim line for D2740 at that carrier, paid and refused, measured September 2026. Cells below five practices or 100 lines are not published, which is why only one carrier appears: a crown refused for being too new is more often refused as a replacement too soon or as a procedure the plan does not cover than as a frequency limit, and replacement-too-soon refusals number 46 lines across the practices measured.

One more measurement worth carrying: on 22 claim lines across six of the practice groups we serve, the whole stated reason for the refusal was a sentence about the age of the existing restoration — "does not pay to replace permanent crowns unless they are at least 5 years old", "only when they are at least 10 years old" — rather than a frequency count. Carriers routinely write this limit as a minimum age, and an age sentence and a frequency window are not the same test.

What the carriers' own policies say

The sharpest split sits inside one carrier's own sentence: the existing restoration "was installed at least 5 years under the Dental DMO plan and 8 years under the Dental PPO plan before its replacement" (Aetna CA DMO Voluntary Option 4A with Orthodontics Benefit Summary, form effective 2012). Note the condition in front of it — the restoration "cannot be made serviceable" — so the clock running out is necessary and not sufficient.

Ten years, on an individual PPO product: "no more than one replacement for the same tooth within 10 years of the initial installation or a prior replacement" (MetLife Take Along Dental PPO High Plan Schedule of Benefits, form IND-DENTAL-2015-SOB-PPO-14). "Or a prior replacement" makes the window run from the most recent crown rather than the original.

Seven years: one state-employee dental certificate allows the replacement only where more than seven years have elapsed since the last placement.

Five years, with the serviceability test written in: "Replacement of crowns, onlays, buildups, and posts and cores is covered only if the existing crown, onlay, buildup, or post and core was inserted at least five years prior to the replacement and satisfactory evidence is presented that the existing … is not and cannot be made serviceable" (TRICARE Dental Program Handbook Supplement – Benefits Booklet, January 2025).

Whose crown starts the clock is a separate question and the documents disagree. Counting a prior carrier's work: "Benefits for major restorations are limited to one per tooth every 60 months whether placement was provided under this Policy or under any prior dental coverage, even if the original crown was stainless steel" (BlueCare Dental 1D Required Outline of Coverage, Individual, 2025). Refusing to count it: a state-employee plan handbook pays a replacement only where the existing restoration was installed while the patient was covered under that same plan, and at least five years earlier.

And one federal plan pools the whole restorative family onto a single clock: "All major restorative and prosthodontic services (i.e., crown, bridges, implants and dentures) are combined under one replacement limitation under the plan. Benefits for major restorative and prosthodontic services are combined and limited to one every 60 months per tooth or arch depending on the service" (2026 BCBS FEP Dental Official Brochure, OPM FEDVIP, 2026).

Why it depends on the plan

The interval is bought by the employer group, and the same carrier sells several. Beyond the number, three variables move the answer more than the count does.

What the clock is attached to. At least one federal plan puts crowns, bridges, implants and dentures on one replacement limitation — so paying for a partial denture can lock the arch for five years. Where a plan counts per arch, a crown on a different tooth in the same arch is not a fresh slot.

When the clock starts. One brochure states it exactly: for reporting and benefit purposes the completion date for crowns is the cementation date, and for removable appliances the insertion date. A temporary can start it too — one federal manual treats a provisional restoration older than twelve months as permanent and subject to the five-year rule, and another carrier counts a stainless steel crown or an immediate denture as starting its five-year clock.

Whether prior coverage counts. Some plans count a placement under a previous carrier and some count only placements they paid for themselves. That single sentence changes the answer for any patient who has changed jobs.

What to do

• Ask for the interval and the anchor together: how many years, and from what date — the original placement, the most recent replacement, or the date this plan began.
• Ask whether the plan counts a placement made under a previous carrier. Where it does, get the prior placement date from the patient's records before you quote.
• Submit the prior placement date and the reason for replacement on the claim. Where the plan carries a serviceability test, the clinical reason is what pays it, not the date.
• Check whether the crown, the build-up and any veneer run on the same clock or separate ones. On some plans a crown redo is payable while its build-up is not.
• Read the sentence carefully when it is written as an age — "at least five years old" is a test on the existing crown, and a claim can be refused on it with no frequency count in sight.

Numbers last refreshed September 2026.

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