How are dental insurance benefits calculated? -

What is a "UCR" fee schedule? - Criticisms of the UCR method. Are your dentist's fees too high? | Ways to avoid out-of-pocket surprises (pre-authorization & pre-determination of benefits).

What is a dental procedure UCR fee?

While reading through some insurance policies, you'll run across the term "UCR" fee. These letters stand for the words "Usual, Customary and Reasonable."

Insurance companies implement "UCR fee schedules" as a way of helping to control their expenses. These lists of dental procedures state how much the insurance company has determined each one should cost. In turn, the amount of benefits paid on your claim are based with the involved procedures' UCR fee in mind.

We provide sample calculations below showing how UCR fees get factored in when benefits are calculated. You're most likely to encounter their use with indemnity (traditional) and possibly preferred-provider (PPO) dental insurance plans.

When do UCR fees come into play?

If stipulated by the policy, a company's "Usual, Customary and Reasonable" fee schedule is referenced every time a claim is submitted.

How it works.

The wording found in most policies is one where ...

  • The insurer will pay a set percentage of the cost of a procedure (such as 80% of the cost of a filling) ...
  • ... based on the dentist's actual charges or the insurance company's UCR fee for that procedure ...
  • ... whichever is less.


How are dental procedure UCR fees calculated?

Insurance companies create a UCR fee for each dental procedure by way of tallying up all of the claims that have been submitted for that specific service within a particular geographic area (like by city, zip code, or grouping of zip codes).

After tabulating information for the area, the UCR value is then set at a level where it exceeds a certain percentage (often 80% or 90%) of all of the fees that have been collected. (For example, 90% of all fees charged by dentists in that area for fillings are less than the insurance company's UCR fee.)


There is nothing transparent about the way an insurance company calculates its UCR fee schedule. It is both proprietary and arbitrary. And as discussed below, it has the potential to be implemented in a manner that places the dentist and patient at a distinct disadvantage.

How are patient benefits calculated when UCR fees are involved?

As an example of how all of this works, take the situation where you have a tooth that needs a dental crown and your plan states that it will pay 50% of its cost.

The insurance company's UCR fee.

Your insurance company will have already collected information from dentists in your area that have placed dental crowns for other plan members. And from this data (let's say) they have determined that 90% of them charge $1000 or less.

Based on this information the company then decides to set its UCR fee for dental crowns at $1000.

Example #1: Your dentist charges less than the UCR fee.

Now, take the example where the amount that your dentist charges for crowns is comparatively less than most surrounding dentists. Let's say that they charge $800.

If so, when the insurance company determines your benefits for the placement of your crown, they will pay 50% of $800, which is $400. You would then pay your dentist the outstanding $400 out of your pocket to pay off your bill.

Example #2: Your dentist charges more than the UCR fee.

But what if the fee that your dentist charges is higher than neighboring dentists, say $1200? In this case, the dental insurance company will only pay 50% of their $1000 UCR fee, which is $500.

That means that your coverage will only pay $500 of your dentist's bill and you will be responsible for the remaining $700. That's a pretty big difference when compared to the first situation.

If your dentist charges more than your policy's UCR fee, it doesn't necessarily mean that they're overcharging.

It's important to understand that if your dentist's fee is more than your insurance company allows it doesn't necessarily mean that they're charging too much. That's because you don't know how the insurance company's UCR fee was calculated.

For example:

  • What was the cut-off level for the range of submitted fees (90%, 80%, even less)?
  • What areas were used for the calculation and was this choice realistic?
  • How up-to-date were the fees that were evaluated?


These are just a few of the factors that could create a bias and, in reality, there is wide fluctuation and no regulation in how a company calculates its numbers.

Since an insurance company doesn't share their methodology, it would be impossible to know if their calculations did or did not accurately reflect those fees charged by dentists in a specific area.


It seems like a win-win for the insurance companies.

The use of UCR fees seems like a rigged advantage for insurance companies and maybe it is, maybe it isn't.

It's easy to see how imposing a low UCR fee schedule would create a financial advantage for them. But at the same time, it's obvious why a company would need to utilize some type of mechanism that can help to control/regulate their expenses.

Effects on dental fees.

Especially in the case where a single insurance company tends to be the predominant coverage provider in an area, their use of a UCR fee schedule could affect area prices for dental services:

  • In the sense that a dentist probably wouldn't want to be known for charging far more than anyone else in their immediate area (a factor that would be revealed as their patients file for benefits), the use of UCR fees likely has the effect of helping to keep the prices charged by all dentists somewhat grouped.
  • At the same time, any dentist who discovers that their fees fall well short of the UCR fee set for their area may decide to raise them. (Discovery could come via a dentist mentioning to a neighboring colleague that their comparatively higher fees are never limited by the insurer's UCR restriction when claims are filed.)

Minimizing your out-of-pocket costs.

As explained in the examples above, if there's a big mismatch between your dentist's charges and your policy's UCR fees, it can end up costing you a fair amount of money.

Evaluating your dentist's fees.

It's easy enough to find out how your dentist's fees compare. For example:

  • You might ask other plan members that go to your dentist what they've experienced. Did they end up paying more than expected?
  • Or ask your dentist's front-desk staff. They'll know from filing claims exactly how their patients end up faring.


Evaluating your plan's UCR fees.

If you do find there is a considerable discrepancy between what your dentist charges and your policy's UCR fees allow for, you might ask other plan members that go to different dentists what their experiences have been. You may find that having an unrealistically low fee schedule is a problem with your policy in general.

If your dentist charges more, they may be worth it.

If it seems that it's your dentist's fees that are out of line, then you might ask yourself what's unique or special about them that they should charge a higher amount.

Does their training, manner, experience or expense associated with providing their services justify their higher fees? If so, then the cost is well worth it. If not, then possibly it's time to shop around for another dentist.

How to avoid unexpected out-of-pocket costs.

Especially when a costly treatment plan is involved, you can ask your dentist's front office staff for help in determining what your actual out-of-pocket expenses should be.


They will start with pre-certification, which is simply confirmation from the insurer that you are a covered member of the plan.


This is a process where your proposed treatment plan is submitted to the insurance company so they can confirm that the procedures it contains are covered under the terms of your policy. (Some companies mandate pre-authorization before treatment is begun.)

Pre-determination (benefits verification).

This process is used to determine the level of benefits that can be expected to be paid for the dental services planned. It's not unlike filing a claim before your dental work has been performed.

It's important to state that a pre-determination of benefits is not a guarantee. Insurance companies leave themselves various "fine print" outs that may affect the actual amount paid. However, this is the most definitive type of pre-treatment estimate available to plan members and is typically an accurate representation of what you can expect.