
If you have just arrived in the United States, dental insurance can feel like a foreign language, even when someone explains it in your own. Copay, deductible, coinsurance, "in-network," "annual maximum"... And the most frustrating part: leaving an appointment you thought was covered with a bill you didn't expect.
Insurance complaints are among the most common in reviews of Miami dental offices: "They told me they took my plan, and I found out in the chair that they didn't." This guide explains the basic terms, the types of plans, and how to avoid surprises. It is general information: every plan has its own rules, and it is always a good idea to verify yours.
This is what you pay each month, or what is deducted from your paycheck, to have insurance. You pay it whether you use the insurance or not.
This is the amount you pay in a year before your insurance starts paying for certain services. In many dental plans, the deductible does not apply to preventive services such as cleanings and checkups, but it does apply to fillings, extractions, or crowns. Check how it works in your plan.
A copay is a fixed amount you pay for a service or visit. Coinsurance is a percentage: if the plan pays 80%, you pay the remaining 20% of the allowed amount. Many dental plans organize coverage into three categories (preventive, basic, and major), each with different percentages.
This is the most your dental insurance will pay in a plan year. Once it is reached, you pay the rest until the plan year renews. There is an important difference from medical insurance here: medical plans usually cap what you pay, while dental plans usually cap what the insurance pays. That is why a large treatment can exceed your annual maximum quickly.
| Plan type | How it generally works | What to watch for |
|---|---|---|
| PPO | You can see dentists in and out of network. In network, you usually pay less because prices are negotiated. | Out of network, you may be billed the difference between the dentist's fee and what the insurance pays. |
| HMO / DHMO | You choose, or are assigned, an in-network dentist. It usually works with fixed copays based on a list of services. | Out of network there is usually no coverage, and you may need a referral to see a specialist. |
| Medicare Advantage with a dental benefit | Original Medicare generally does not cover routine dental care. Many Medicare Advantage plans include some dental benefit, which differs from plan to plan. | Which services are included, whether it has a network, its annual limits, and whether it requires pre-authorization. This varies widely from plan to plan. |
| Discount or membership plan | It is not insurance: you pay a fee and get reduced prices at the office or network that offers it. | What the fee includes and which discounts actually apply. |
If you have Medicare or help a family member with their plan, you will find more detail on our Medicare dental in Kendall page.
"In-network" means the dentist has a contract with your insurance company and accepts its negotiated prices. "Out-of-network" means they don't. A few details almost nobody tells you:
Some plans don't cover certain services until you have been enrolled for a while. It is common to have a waiting period of several months for fillings and a longer one for crowns or dentures, while preventive care is usually covered sooner. If you just signed up for your plan, ask before scheduling treatment.
A plan may cover, for example, two cleanings a year, a full set of X-rays every few years, or a crown on the same tooth only once in a certain period. If you get a service before you are eligible again, you may end up paying for it yourself.
For larger treatments, some plans ask the dentist to submit the plan in advance for review (pre-authorization or predetermination). It is not always a guarantee of payment, but it gives you a much clearer idea of what will be covered.
This is one of the most confusing phrases. It usually means the plan pays 100% of its allowed amount for that service, and only if its conditions are met:

If you help a parent or relative who is more comfortable in Spanish, this table pairs each term with its Spanish equivalent so you can explain it together.
| English | Spanish | What it means |
|---|---|---|
| Premium | Prima | What you pay each month for insurance. |
| Deductible | Deducible | What you pay before your insurance starts paying for certain services. |
| Copay | Copago | A fixed amount per service or visit. |
| Coinsurance | Coaseguro | The percentage of the price that you pay. |
| Annual maximum | Máximo anual | The most the insurance pays in a plan year. |
| In-network / out-of-network | En red / fuera de red | Whether or not the dentist has a contract with your insurance company. |
| Waiting period | Periodo de espera | Time before certain services are covered. |
| Frequency limitation | Límite de frecuencia | How often a service is covered. |
| Pre-authorization / predetermination | Preautorización | The insurance company's review of the treatment plan before it begins. |
| Explanation of Benefits (EOB) | Explicación de beneficios | A summary of what the insurance paid and what you owe. |
| Allowed amount | Precio aprobado | The maximum price the insurance recognizes for a service. |
| Balance billing | Cobro de la diferencia | When an out-of-network dentist bills you for the difference between their fee and what the insurance paid. |
PureSmile Miami opens on November 1, 2026, in Kendall, at 8000 SW 117th Ave, Suite 100. If it is your first time with a dentist in the United States, we will calmly explain each term, in English or Spanish. We will verify your insurance for free and give you the price in writing before any treatment begins. Learn more on our dental insurance in Kendall page.
Write to us or join the waitlist and we will get back to you.