Preventive, basic, and major: the three tiers
Almost every dental plan splits treatments into three groups and pays a different percentage for each. That structure is what explains why a cleaning is free and a crown isn't.
- Preventive. Cleanings, checkups, and routine X-rays. This is what most plans cover at 100% from day one, because it's in the carrier's interest that you go.
- Basic. Fillings, simple extractions, and gum treatment. Here you pay a share, and there's usually a short waiting period.
- Major. Crowns, root canals, bridges, dentures, and implants. This is where the plan covers the smallest percentage and where waiting periods are longest.
How to read a plan in 30 seconds
Look for three numbers in a row, something like 100 / 80 / 50. Those are the percentages the plan covers for preventive, basic, and major. If the third number is low and there's a long wait on top, that plan isn't built for a major treatment you already know you need.
Waiting periods decide whether a plan works for you
A waiting period is the time that has to pass from the start of your plan until you can use a given benefit. It isn't a hidden trick: it's how carriers prevent someone from enrolling Monday and getting a crown Tuesday.
In practice it works in steps. Cleanings are usually available from day one. Basic treatments, after a few months. Major treatments carry the longest wait, commonly 6 to 12 months in many plans.
The direct consequence
If you have a treatment pending right now, saying so up front doesn't work against you: it's what lets you rule out the plans that won't help and look for the ones with short waits or none.
PPO, DHMO, and discount plans are not the same thing
Three very different things get sold with the same language. Here's the real difference, and the third is the one that causes the most confusion.
- PPO. Broad network and you can go to any dentist, though you pay less inside the network. Usually has a deductible, coinsurance, and an annual maximum.
- DHMO. You pick a primary dentist inside a specific network and pay fixed fees per treatment, with no deductible and often no annual maximum. Cheaper, but far less flexible.
- Discount plan. It is not insurance. You pay a fee to access a list of reduced prices, then pay the full treatment at that price. Nobody covers a percentage for you.
A discount plan can make sense in some cases, but it's worth knowing what you're buying. If someone presents it to you as though it were dental insurance, that alone tells you a fair amount.
The annual maximum, the deductible, and vision
Three details almost nobody checks when comparing, and they determine what you actually pay in a year with treatment.
- Annual maximum. The cap on what the plan pays in a year. It's the mirror image of a health plan's out-of-pocket max: here, once it's used up, you start paying 100%.
- Deductible. What you pay before the plan starts covering. It usually doesn't apply to preventive care, which stays free from day one.
- Vision. When it's included, it usually covers an annual exam and an allowance toward lenses or frames. It's a separate benefit from dental, with its own limits.
The question that sorts everything out
Before comparing prices, decide whether you're after maintenance, meaning cleanings and checkups so you never reach a problem, or whether you already have a specific treatment ahead. Those are two different searches and they lead to different plans.
