Dental Pre Authorization: What It Is and How It Works

A dental pre authorization, also called a predetermination or a pre-treatment estimate, is a written request a dental office sends to a patient's insurance company before starting treatment such as a crown, a root canal, or oral surgery. The request lists the planned procedure codes along with x-rays or clinical notes the plan asks for. The insurance company reviews the request and sends back a written estimate showing which procedures are covered, what percentage the plan will pay, and what the patient can expect to owe. A pre authorization is not a guarantee of payment. Coverage can still change if the patient's eligibility ends before the appointment, if the plan's annual maximum gets used up on other work first, or if the final claim does not match the codes that were approved. Most insurance companies take 10 to 30 business days to answer a pre authorization request, and many plans skip the process for routine work like cleanings, fillings, and exams.

The procedure codes on the request are CDT codes, the same codes that show up later on the claim form. If you want to look up what a specific code covers, our CDT procedure code guide lists them by category.

Turnaround time depends on the payer. Some insurance companies answer a pre-authorization in 10 business days if the request is complete. Others take closer to 30 business days, especially for specialty work like implants, orthodontics, or an oral surgery referral that needs extra documentation. A request that is missing an x-ray or a narrative almost always gets sent back, which restarts the clock. If a patient is scheduled for a crown in three weeks and the plan usually takes 20 business days to respond, the request needs to go out well before the final appointment gets booked, not after the fact. Emergency treatment, extractions for pain, and infections do not wait for a pre-authorization. The dentist treats first, and the claim gets filed afterward with documentation that explains why the work could not wait.

At most practices, the front desk or insurance coordinator prepares the dental pre authorization request. They pull the treatment plan from the chart, attach the x-rays the plan asks for, and submit the request through the payer's portal or fax line. The dentist decides what treatment is needed and which procedure codes apply to it. The patient's job is simpler: confirm their insurance information is current, and ask the office whether a pre-authorization was sent before agreeing to a treatment plan with real out-of-pocket cost attached. Some plans, mostly Medicaid dental programs and certain PPOs, require the request to come from the provider, not the patient, for anything past a basic benefits question. For a closer look at how those same procedure codes carry through to the actual claim, see our guide to filling out the ADA dental claim form.

The terms get used interchangeably, but there is a real difference. A predetermination is voluntary: the office asks the plan to estimate payment before treatment, mostly so the patient knows their cost upfront. A prior authorization, sometimes written pre-authorization, is a plan requirement. Certain procedures will not get paid at all unless the request was approved first. Medicaid dental plans and some PPOs list specific codes, often orthodontics, implants, and some oral surgery, that require authorization before the office can even bill for them. Skipping that step on a required code is one of the more common reasons a clean-looking claim still comes back denied. We cover the distinction procedure by procedure in our guide to how dental predetermination works.

A patient can call their insurance company and ask general coverage questions, but that is not the same as a formal pre-authorization. Insurers want procedure codes, clinical documentation, and sometimes x-rays, information a dentist's office has on file and a patient usually does not. Most plans also require the request to come from the treating provider, not the patient, for anything beyond a basic benefits question. If you want to understand your coverage before you book a procedure, the faster path is asking the front desk to verify your eligibility and benefits for that specific service, then letting the office handle the pre-authorization paperwork if the plan requires one.

Pre authorization and insurance verification answer different questions. A pre authorization asks what a plan will pay for one specific, usually bigger, procedure. Insurance verification asks whether a patient's plan is active at all, and what their benefits look like for whatever is on the schedule that day, including the smaller, everyday procedures that never need a pre-authorization. Dentists are leaning on automation for exactly this second part. The ADA Health Policy Institute's 2026 survey found that 43.3% of dentists use AI for at least one task in their practice, and insurance verification is the number two planned use, with 32.6% of dentists planning to add it compared with 13.6% who use it today. For a full breakdown of what a benefits check actually confirms, see what dental insurance verification actually takes.

At Valian, that everyday verification is separate from pre-authorization work, and it stays separate from your practice management system too. The office signs in and checks any patient in one click, in seconds, to confirm their plan is active and what their benefits look like before the visit, across the payers we verify in real time. Nothing runs on its own overnight, on a schedule, or before every appointment automatically. A staff member clicks the patient, and the answer comes back electronically. Inside the Full System, Amy, Valian's voice assistant, can also check a patient's insurance live while they are on the phone scheduling the visit. On its own, insurance verification is priced from $49 a month plus $2.50 or less per check we find, and the plan you pick depends on how many checks your office runs every month.

What we see at practices is that a pre-authorization gets prepared once, for one procedure, usually a week or more before the appointment. A benefits check gets run the morning of, or the day before, for whoever is actually on the schedule. Both matter. Neither replaces the other. If your office wants to see the actual screen a front desk would use to run that one-click check, you can book a short walkthrough and we will show you how it sits alongside the schedule you already run.

What is a dental pre-authorization?

A dental pre-authorization is a request sent to a patient's insurance company before treatment, asking what the plan will cover and pay. It is also called a predetermination or a pre-treatment estimate. The office submits the procedure codes and any required documentation, and the plan replies with a written estimate.

How long does a dental pre-authorization take?

Most insurance companies respond in 10 to 30 business days. Specialty procedures and plans that require extra documentation tend to land on the longer end. Emergency treatment does not wait for an answer before care happens.

Can I do my own prior authorization?

You can ask your insurer general coverage questions, but a formal prior authorization usually has to come from the treating dentist's office. Most plans require procedure codes and clinical documentation that only the provider has on file.

Who is responsible for obtaining preauthorization?

The dental office, usually the front desk or insurance coordinator, prepares and submits the request. The dentist decides which procedures are needed and which codes apply. The patient's role is to confirm their insurance details are current and ask whether a request was sent before they agree to treatment.