Crowns for children: steel, resin and the white ones the schedules barely mention

Crowns for children are a different product from crowns for adults, and the fee schedules make the difference obvious. An adult crown made to measure in a laboratory is allowed between $150.00 and $1,028.00 on the three schedules read here, with every porcelain or cast-metal line at $475.00 or above. A child's crown is usually a ready-made shell, selected and fitted at the appointment, and allowed between $50.00 and $237.12.

Whether a child's tooth needs one is entirely a matter for a dentist who has examined it and looked at the X-rays. Nothing here is a view on that. What follows is the published pricing, the eligibility rules attached to it, and one significant silence.

Every paediatric crown line, across three schedules

Read across the rows rather than down the columns and the shape of this becomes clear. Pennsylvania prices the widest range of paediatric options — five separate lines, including two different ways of making a steel crown look less like steel. Montana prices four, at roughly one and a half to two times Pennsylvania's money. Washington's programme schedule carries a single ready-made crown line and nothing else, which is consistent with its being a programme for adults rather than a children's benefit.

The white-crown question, and the silence around it

Parents overwhelmingly search for white crowns rather than silver ones, and usually for zirconia specifically. Here is exactly what the three schedules say about that: nothing. Not one of them has a line that names zirconia — for children or for adults. The closest published options are the tooth-coloured versions of a steel crown, and one genuinely ceramic paediatric line.

• A steel crown with a tooth-coloured window on the front, which is a metal crown with a facing: $145.00 in Pennsylvania, $177.84 in Montana.
• A steel crown coated to look tooth-coloured all over: $145.00 in Pennsylvania, and no line on the other two.
• A ready-made porcelain or ceramic crown for a baby tooth: $237.12 in Montana, and no line in Pennsylvania or Washington. This is the only published line of the three that is ceramic rather than coated metal.

So if a practice quotes for a white or zirconia crown on a child's tooth, the useful question is which line it will be billed under — the ceramic one, a coated steel one, or something outside the schedule entirely. That is not a trick question and a practice will have an answer; it is simply not one most people know to ask. The same uncertainty applies to adult zirconia crowns, covered in types of dental crown and cost.

The eligibility rules attached to these lines

These are not open-ended benefits and the restrictions are printed beside the fees. Pennsylvania marks every one of its ready-made crown lines "under 21 years of age only" and allows one per 365 days. Montana attaches "1 every 5 years" and limits them to members with full Medicaid coverage. Neither schedule funds a second attempt at the same tooth quickly.

One consequence is worth spelling out. A crown line restricted to under-21s means that a person who has one fitted at 20 and needs it redone at 22 is in a completely different funding situation for the same tooth. That is a fact about a programme, not a clinical prediction, and it is the same confusion of funding rules with durability that runs through how long restorations last.

Why a crown rather than a filling on a baby tooth

This is the question parents ask most and the one we are least able to answer, because it is a clinical judgement about a particular tooth: how much of it is left, how long it has before it is due to come out naturally, and whether a filling would hold. A dentist who has examined the child and seen the X-rays decides that. Anybody answering it from a web page is guessing.

What we can put beside the question is the money. On Pennsylvania's schedule a three-surface composite filling on a back tooth is $65.00 and a steel crown on a baby tooth is $99.00; on Montana's the same two lines are $213.41 and $158.08 — the crown is the cheaper of the two there. The cost difference between filling and crowning a child's tooth is nothing like the gulf that exists for adults, which is a useful thing to know before assuming a crown is being suggested for the money.

Why the fee is so much lower

The gap between a child's crown and an adult's is not a discount, it is a different product. An adult crown is made to measure: the tooth is prepared, an impression or scan goes to a laboratory, something covers the tooth in the meantime, and the finished crown is fitted at a second appointment. A ready-made crown is selected from a range of sizes, adjusted and fitted in one visit, with no laboratory and no interval.

That explains both the price and several things parents notice afterwards. There is no temporary stage to manage, because there is no waiting; and the crown is a standard shape adapted to the tooth rather than a shape built for it. On a baby tooth with a limited life ahead of it, that trade is the whole point of the design. The interval that adults go through instead is set out in temporary crowns and bridges.

One row in the table is not a children's line at all, strictly speaking. The ready-made steel crown for an adult tooth is priced by all three schedules, including Washington's programme, which carries no other ready-made crown line — and Washington's schedule is an adult programme. It is allowed $110.00, $143.00 and $237.12 across the three. Set that against the lab-made adult crowns on the same documents, which run from $150.00 for Pennsylvania's composite crown up to $1,028.00 in Washington, and the price of a ready-made shell is plainly a different order of thing.