Editorially reviewed by the Dental.me Editorial Team · Updated July 2026
For most people who want to choose their own dentist and keep the freedom to see specialists without extra steps, a PPO dental plan is the better fit, even though it usually costs more each month. A DHMO (the dental version of an HMO) wins when the priority is the lowest possible premium and low, predictable copays, and you are comfortable staying inside a smaller assigned network. Neither is universally “better” for everyone; the right answer depends on your budget, your current dentist, and how much dental work you expect.
What is the difference between PPO and HMO dental insurance?
The two plan types solve the same problem, paying for cleanings, fillings, crowns, and bigger procedures, but they take very different paths to get there. The gap shows up in three places: how much you pay, which dentists you can see, and whether you need permission to see a specialist.
A DHMO (Dental Health Maintenance Organization) is a network-based plan where you pick one in-network dentist or office as your dental home. That office handles your routine care and refers you out when needed. In exchange for staying inside the network, you typically pay a low monthly premium and fixed dollar copays per service, and there is usually no annual maximum on benefits.
A PPO (Preferred Provider Organization) is a plan built around a large network of dentists who agree to discounted rates. You can see any dentist you want, but you save the most by choosing one who is “in-network.” PPOs usually cost more per month, pay a percentage of each service rather than a flat copay, and cap what they pay in a year with an annual maximum.
How do PPO and DHMO dental plans compare on cost?
Cost is where most people feel the difference first. With a DHMO, you generally know your price before you sit in the chair: a filling might have a set copay, and a crown another. Premiums tend to be lower, and many DHMO plans skip the annual maximum, which can matter if you need a lot of work in one year.
PPO plans usually work on coinsurance. Many PPO plans follow a common “100/80/50” structure, meaning preventive visits like cleanings and exams are covered at or near 100%, basic work such as fillings around 80%, and major work such as crowns and bridges around 50%, after you meet a deductible. Most PPO plans also carry an annual maximum, often in the range of $1,000 to $2,000, and once you hit it, you pay the rest yourself for the year. These are common industry norms, not guarantees; your own plan documents are the source of truth.
Which plan is cheaper overall?
If you mostly need cleanings and the occasional filling, a DHMO is often the cheaper total. If you expect major work, a crown, root canal, implant, or orthodontics, the math gets closer, because a PPO’s percentage coverage on expensive procedures can outweigh its higher premium, especially when you value seeing a specific dentist or specialist. Running the numbers for your expected year of care beats guessing.
PPO vs DHMO dental insurance: side-by-side comparison
| Feature | PPO | DHMO |
|---|---|---|
| Monthly cost | Higher premium | Lower premium |
| How you pay per service | Coinsurance percentage after a deductible (often 100/80/50) | Fixed dollar copays, often no deductible |
| Network | Large; save most in-network, still covered out-of-network | Smaller; must use your assigned in-network office |
| Referrals to specialists | Usually not required | Usually required through your primary dentist |
| Out-of-network coverage | Yes, at a reduced rate | Generally none; you pay full price out-of-network |
| Annual maximum | Common ($1,000-$2,000 typical) | Often none |
| Best for | Choice, specialists, and people with an established dentist | Low, predictable cost and routine care |
Does the dentist network really matter?
It matters more than most people expect. A DHMO only pays when you use your assigned network, so if your current dentist is not in it, you either switch dentists or pay out of pocket. A PPO gives you room to keep your dentist, though your share is smaller when that dentist is in-network. Before you enroll, it is worth confirming whether the dentists you like actually accept the plan. You can start by browsing a dentist near you and checking which plans each office lists.
Network size also shapes access to care that goes beyond a general dentist. If you anticipate needing an orthodontist, endodontist, oral surgeon, or periodontist, look at how each plan handles dental specialties, because a PPO’s referral-free access can save weeks of waiting.
How do referrals work in each plan?
Under most DHMO plans, your assigned primary dentist is the gatekeeper. If you need a specialist, that office refers you, and care outside the referral path may not be covered. This keeps costs controlled but adds a step and can slow things down when you want a second opinion quickly.
PPO plans typically let you self-refer. You can call a specialist directly and, as long as they are in-network, get the plan’s negotiated rate without asking your general dentist for permission first. For patients managing a complex issue, or anyone who values speed and choice, that difference is a real convenience.
Who should choose a PPO dental plan?
A PPO tends to be the stronger choice if you already have a dentist you trust and want to keep, if you expect to need major or specialist care, if you travel or move and want coverage that follows you, or if flexibility is worth a higher monthly premium to you. Families with orthodontic needs often lean PPO for the freedom to shop specialists.
Who should choose a DHMO dental plan?
A DHMO is often the smarter pick if your top priority is the lowest monthly cost, if your care is mostly preventive, if you want fixed, predictable copays with no surprise coinsurance math, or if there is a convenient in-network office you are happy to use. Because many DHMO plans have no annual maximum, they can also help someone who needs a lot of routine work spread across the year without hitting a cap.
How can I decide between them for my situation?
Start with three questions: Do you have a dentist you want to keep? How much dental work do you realistically expect in the next year? And how much monthly premium are you comfortable paying? Then compare each plan’s copays or coinsurance against your expected care, and confirm your preferred dentists are in-network. If you like data, our dental market data can give you a feel for typical costs in your area, and city guides like our Los Angeles dentists page show how local networks stack up. To understand how we evaluate and order the practices you see, read how we rank dentists.
Key takeaways
- PPO = flexibility: see any dentist, skip referrals, and keep out-of-network coverage, at a higher premium.
- DHMO = low, predictable cost: fixed copays and low premiums, but you must stay inside a smaller assigned network.
- Networks decide a lot: confirm your dentist and any needed specialists accept the plan before you enroll.
- Referrals differ: PPOs usually let you self-refer to specialists; DHMOs usually route you through a primary dentist.
- Do the math on your year: heavy or specialist care often favors a PPO; routine care often favors a DHMO.
- This is general educational information, not personal advice; always verify details against your own plan documents and current provider directory before deciding.
Frequently asked questions
Is PPO or HMO dental insurance better?
There is no single winner. A PPO is usually better if you want to keep your own dentist, see specialists without referrals, and value flexibility, and you can accept a higher premium. A DHMO is better if you want the lowest monthly cost and predictable copays and are comfortable using a smaller assigned network.
Why is PPO dental insurance more expensive than a DHMO?
PPO plans pay a percentage of many services, cover out-of-network care at a reduced rate, and let you skip referrals. That added flexibility and broader network access generally come with a higher monthly premium than a DHMO, which controls costs by keeping you inside one network with fixed copays.
Can I keep my current dentist with a DHMO plan?
Only if that dentist is in the DHMO network and can serve as your assigned office. If they are not in-network, a DHMO generally will not cover care with them, so you would either switch dentists or pay out of pocket. A PPO is more likely to let you keep an existing dentist.
Do PPO dental plans have an annual maximum?
Most do, commonly in the $1,000 to $2,000 range, meaning the plan stops paying once you reach that amount in a benefit year. Many DHMO plans have no annual maximum. Check your specific plan documents, since amounts and rules vary by insurer and plan tier.
Do I need a referral to see a dental specialist?
With most DHMO plans, yes: your assigned primary dentist refers you, and care outside that path may not be covered. With most PPO plans you can self-refer and see an in-network specialist directly. Confirm the rule in your plan before booking specialist care.
Which plan is better for braces or orthodontics?
Families needing orthodontics often lean toward a PPO because it lets you choose among orthodontists without a referral and may cover out-of-network care at a reduced rate. Some DHMO plans offer orthodontic copays too. Compare each plan’s orthodontic benefit and provider list for your situation.
Sources & further reading
- Medicaid.gov — Dental Care
- American Dental Association (MouthHealthy)
- MedlinePlus — U.S. National Library of Medicine
The sources above provide clinical background for this article. Cost ranges and comparisons are Dental.me editorial summaries and can vary by patient, practice, and location. This content is informational and is not a substitute for professional dental diagnosis or treatment.