A cavity filling is one of the most common dental bills, and what you pay depends on three things: the filling material, how many tooth surfaces are involved, and how your dental insurance handles basic care. Two people with the same cavity can pay very different amounts.
Quick answer: Without insurance, the average cavity filling costs about $146 to $174, while composite fillings average about $260 nationally and range up to $450 for larger ones. With a typical PPO that covers fillings at 80% after the deductible, most people pay roughly $30 to $90 per filling.
Cavity Filling Costs With & Without Insurance
How much does a cavity filling cost with insurance? Usually about $30 to $90 if your plan pays 80% for basic care and you’ve met your deductible. Without insurance, NewMouth puts the average filling at $146 to $174, and a tooth-colored composite filling averages about $260, based on ADA fee survey data compiled by Pearl.
| Without insurance | With insurance (80% coverage, deductible met) | |
| Average filling | 146–174 | About 29–35 |
| Composite (tooth-colored), national range | 170–450 (average $260) | About 34–90 |
| Amalgam (silver), 1–2 surfaces | 50–150 | About 10–30 |
Insured costs are calculated at 20% of the fee. Your plan’s negotiated fee may be lower than these cash prices.
Primary cost drivers
• Material: amalgam usually costs least; composite costs more; gold or porcelain inlays cost the most.
• Surfaces: a filling on one surface of the tooth costs less than one covering three or four.
• Tooth location: front teeth (anterior) and back teeth (posterior) are billed under different codes.
• Insurance network: in-network dentists charge a contracted fee; out-of-network dentists can bill more.
• Location: prices vary by city and state.
Are cavities usually covered by insurance?
Yes. Most dental insurance plans cover fillings as basic restorative care, commonly at 70% to 80% after the deductible. Many plans follow a 100/80/50 pattern: 100% for preventive care, 80% for basic care like fillings, and 50% for major care like crowns.
Note: Some plans pay composite fillings on back teeth only at the cheaper amalgam rate (an “alternate benefit” clause). If so, you pay the difference.
Dental Filling Cost Breakdown by Material & Tooth Surfaces
Filling costs rise with the material and the number of tooth surfaces repaired. A small one-surface amalgam is the cheapest filling, while a large four-surface composite or a porcelain inlay costs the most.
Understanding surfaces and CDT codes
Dentists bill fillings using the ADA’s Current Dental Terminology (CDT) codes. The code depends on the material, the number of surfaces, and whether it’s a front or back tooth. Common examples:
| CDT code | Description |
| D2140 / D2150 / D2160 / D2161 | Amalgam: 1, 2, 3, or 4+ surfaces |
| D2330 / D2331 / D2332 / D2335 | Composite, front tooth: 1, 2, 3, or 4+ surfaces |
| D2391 / D2392 / D2393 / D2394 | Composite, back tooth: 1, 2, 3, or 4+ surfaces |
| D2510–D2664 | Metallic and porcelain/ceramic inlays and onlays |
A “surface” is one side of the tooth: chewing surface, cheek side, tongue side, or the sides that touch neighboring teeth.
Silver amalgam fillings
Amalgam fillings typically cost $50 to $150 for one or two surfaces and $120 to $300 or more for three or more surfaces without insurance, according to CostHelper’s 2026 guide. They’re durable and often the least expensive option, especially on back teeth.
Composite resin (tooth-colored) fillings
Composite fillings cost about $90 to $250 for one or two surfaces and $150 to $450 or more for three or more, per CostHelper. Pearl’s national data, based on ADA fee survey figures, puts the typical composite range at $170 to $450, with a $260 average.
Composite matches your tooth color, so it’s the usual choice for front teeth.
Gold, ceramic, and porcelain inlays and onlays
Inlays and onlays are made in a lab to fit a larger cavity, and CostHelper puts them at $250 to $4,500 or more depending on size and material. Many plans treat them as major restorative care, covered around 50%, and some only pay up to the cost of a standard filling.
How much should 4 cavity fillings cost?
Four fillings typically cost about $584 to $696 without insurance at NewMouth’s average price, and roughly $160 to $300 with insurance, depending on the material, surfaces, and deductible.
Example (hypothetical): four 2-surface composite fillings, in-network
In-network fee: $150 each x 4 = $600
Deductible: $50 (not yet met)
Remaining: $600 – $50 = $550
Plan pays 80%: $440
You pay 20%: $110
Total you pay: $50 deductible + $110 = $160
Same four fillings without insurance (NewMouth average 146–174):
4 x $146 = $584 to 4 x $174 = $696
If the four fillings are larger composites at $300 each, the insured cost rises to about 280(50 + 20% of $1,150).
Master cavity filling cost comparison
| Filling material | Surfaces | Cost without insurance | Cost with insurance (80%, deductible met) | Savings |
| Amalgam | 1–2 | 50–150 | 10–30 | 40–120 |
| Amalgam | 3+ | 120–300+ | 24–60 | 96–240 |
| Composite | 1–2 | 90–250 | 18–50 | 72–200 |
| Composite | 3+ | 150–450+ | 30–90 | 120–360 |
| Inlay / onlay (porcelain or gold) | Varies | 250–4,500+ | Often 50% if covered | Varies |
Cash ranges: CostHelper 2026. Insured costs calculated at 20% of the cash price; in-network fees are often lower, reducing your share further.
How Dental Insurance Covers Cavity Fillings
Dental insurance pays for fillings in three steps: the dentist’s in-network fee sets the price, you pay the deductible first, and then the plan pays its coinsurance share (often 80%) until you hit the annual maximum.
The basic restorative tier: the 80/20 split
Most PPO plans classify fillings as basic restorative care, covered at 70% to 80%. At 80%, the plan pays 80% of the allowed fee and you pay 20%.
Formula:
Your cost = deductible (if not met) + coinsurance % x (allowed fee – deductible)
Dental HMOs (DHMOs) usually work differently: you pay a fixed copay instead of a percentage. For example, Delta Dental’s DeltaCare USA family plan in New York lists adult copays of $55 for a one-surface amalgam and $80 for a one-surface back-tooth composite. See our PPO dental insurance plans guide for more.
Deductibles and annual maximums
• Deductible: the amount you pay before coinsurance starts. Large-group dental PPO deductibles most often fall between $50 and $99, according to NADP data. Preventive care is often exempt.
• Annual maximum: the most the plan pays per year. Per NADP figures cited by ADA News, most in-network maximums fall between $1,000 and $2,500.
Fillings rarely exhaust an annual maximum on their own, but several fillings plus a crown or root canal in the same year can.
In-network savings vs. out-of-network balance billing
In network, the dentist agrees to a contracted fee, and you can’t be billed above it. Out of network, the plan pays based on its Usual, Customary, and Reasonable (UCR) rate, and the dentist can bill you the difference.
Example (hypothetical): 2-surface composite, deductible met, 80% coverage
In network: contracted fee $180 -> plan pays $144, you pay $36
Out of network: dentist charges $250, plan’s UCR is $200
plan pays 80% x $200 = $160
you pay $250 – $160 = $90
Is $250 for a filling expensive?
$250 is within the normal cash price range for a composite filling without insurance, especially for two or more surfaces. Pearl’s national average for composite fillings is $260, and CostHelper puts most one- or two-surface composites at $90 to $250.
But if you have insurance and you’re paying $250 out of pocket for one filling, something is off. Check whether:
• Your deductible hasn’t been met.
• You’re in a waiting period for basic care.
• The dentist is out of network.
• The plan applied an alternate benefit (paying composite at the amalgam rate).
• You’ve reached your annual maximum.
2026 dental filling out-of-pocket scenarios
| Patient profile | Procedure | Cash price | In-network fee | Plan pays | You pay |
| PPO, deductible met | 1-surface amalgam | $120 | $90 | $72 | $18 |
| PPO, deductible met | 2-surface composite | $250 | $180 | $144 | $36 |
| PPO, $50 deductible not met | 2-surface composite | $250 | $180 | $104 | $76 |
| PPO, out of network | 2-surface composite | $250 | n/a (UCR $200) | $160 | $90 |
| PPO, alternate benefit (back tooth) | 2-surface composite | $250 | $180 (amalgam allowance $130) | $104 | $76 |
| DHMO (NY sample plan) | 1-surface back-tooth composite | n/a | Copay schedule | n/a | $80 |
| No insurance | 2-surface composite | $250 | n/a | $0 | $250 |
All fees except the DHMO copay are hypothetical examples. Ask your dentist for a pre-treatment estimate for your exact cost.
Clinical Realities, Delays, & Long-Term Costs
A filling is almost always the cheapest point to treat decay. Once a cavity reaches the inner layers of the tooth, the fix can become a root canal and crown, or an extraction followed by an implant, each costing many times more.
Can I wait 6 months to fill a cavity?
It’s risky. Some small cavities progress slowly, but others reach the inner tooth within months, especially with poor hygiene or a sugary diet. Healthline notes that most cavities take months to years to form, but that once a hole has formed in the enamel, it can’t reverse on its own.
How decay usually progresses:
1. Demineralization: early enamel weakening that can often be reversed with fluoride and good hygiene.
2. Enamel cavity: a hole forms; needs a filling.
3. Dentin decay: deeper, often sensitive; may need a larger filling, inlay, or crown.
4. Pulp involvement: reaches the nerve; usually needs a root canal.
5. Abscess: infection; urgent treatment or extraction.
Cost of delay (U.S. averages without insurance, NewMouth 2026):
Filling now: 146–174
Root canal + crown later: $1,109 + $1,416 = $2,525
Difference: ~$2,350 more
Note: If your dentist says a cavity can wait, ask for a specific recheck date and keep it. Don’t wait if you have pain, swelling, or sensitivity.
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Is it cheaper to fill a cavity or pull a tooth?
Pulling a tooth can cost about the same or less up front, but replacing it later usually costs far more than the filling would have. NewMouth lists extractions at $135 to $500 and a dental implant at about $2,000, with the abutment and crown adding up to $1,500 more.
Leaving the gap can also cause nearby teeth to shift and bone to shrink over time, which can affect your bite. See our dental implants cost guide.
Why would a dentist choose not to fill a cavity?
A dentist may not fill a cavity if the decay is still at the early demineralization stage, or if the tooth needs a bigger treatment instead. Common reasons:
• Early decay (incipient caries): the enamel may remineralize with fluoride varnish, fluoride toothpaste, diet changes, and better hygiene. The dentist monitors it at each checkup.
• The cavity is too large: a crown may be needed to protect the tooth.
• A cracked tooth: may need a crown rather than a filling.
• Non-restorable tooth: extraction may be the only option.
• Baby teeth close to falling out: sometimes monitored instead of filled.
Long-term financial comparison
| Treatment path | Immediate cost (cash) | Possible follow-up costs | Estimated total |
| Fill now | 146–174 | Filling replacement years later | Lowest |
| Delay until root canal | $0 now | Root canal $1,109 + crown $1,416 | About $2,525 |
| Extract and leave a gap | 135–500 | Possible shifting teeth, bite problems | Varies |
| Extract and implant | 135–500 | Implant $2,000 + abutment/crown up to $1,500 | About 3,600–4,000 |
Averages without insurance, NewMouth (updated April 2026). Insurance reduces each figure according to your plan’s coverage tiers.
How to Reduce Filling Costs
To keep filling costs low, get a pre-treatment estimate, use an in-network dentist, and make sure your plan’s waiting period for basic care is over before scheduling non-urgent fillings.
Step 1: Request a pre-treatment estimate
Ask your dentist’s office to send a pre-treatment estimate (predetermination) to your insurer before treatment. It shows the CDT codes, the allowed fee, what the plan will pay, and what you’ll owe, and it can reveal an alternate benefit clause before you’re surprised by a bill.
Step 2: Choose an in-network dentist on a PPO
PPO dental plans let you see any dentist, but in-network dentists charge lower contracted fees and can’t balance-bill you. Confirm the dentist is in network for your exact plan, not just the carrier name. Learn more in our PPO dental insurance plans guide.
Step 3: Watch out for waiting periods
Many individual dental plans make you wait several months before covering basic care like fillings. If you need a filling soon, look at dental insurance with no waiting period, and ask whether the waiting period can be waived if you had recent prior coverage.
Step 4: Compare plans with Insure Omni
1. List expected care -> Fillings, cleanings, any crowns or root canals
2. Check your dentist -> Which carriers’ networks include them?
3. Compare plan details -> Basic coverage %, deductible, annual maximum, waiting period
4. Run the math -> Premium x 12 + expected out-of-pocket costs
5. Talk to Insure Omni -> Compare dental plans available in your ZIP code
For premium ranges, see how much dental insurance costs. Buying for yourself? Read our guide to individual dental insurance plans. Seniors on Medicare can also review dental insurance for seniors.
Conclusion:
With insurance, a cavity filling usually costs about $30 to $90 out of pocket. Without it, expect about $146 to $174 on average, and up to $450 for a large composite. Waiting can turn a small bill into a root canal and crown costing over $2,500.
| Your situation | Best next step |
| Insured, small cavity | Use an in-network dentist; expect 20% of the fee |
| Deductible not met | Budget the deductible plus 20% |
| Want tooth-colored fillings on back teeth | Ask about alternate benefit clauses |
| No insurance, one filling needed | Ask for the cash price; compare dentists |
| Several cavities | Get a pre-treatment estimate; check your annual maximum |
| New plan with a waiting period | Ask about waivers or no-waiting-period plans |
| Dentist suggests waiting | Get a firm recheck date and use fluoride as advised |
The cheapest filling is the one you get early.
Save on Dental Care with Insure Omni
Don’t pay full price for fillings. Compare dental insurance plans at Insure Omni with a specialist who can check coverage for basic restorative care and your dentist’s network.
Insure Omni benefits specialists can help you:
• Compare PPO and HMO dental plans sold in your area.
• Check basic coverage levels, deductibles, annual maximums, and waiting periods.
• Confirm whether your dentist is in network.
• Estimate your total yearly cost, including premiums and fillings.
Call 855-994-4151 or contact Insure Omni for a free, no-obligation comparison.
Secure Your Family's Future with Confidence
Don’t leave your loved ones' financial security to chance. Use our expert tools and free resources to find the perfect coverage today.
FAQS
Yes. Most dental insurance plans cover fillings as basic restorative care, typically at 70% to 80% after you meet the deductible. Dental HMOs usually charge a fixed copay instead. Some plans pay tooth-colored fillings on back teeth only at the amalgam rate, and individual plans may have a waiting period before basic care is covered.
Not without insurance. $250 is within the normal cash range for a composite filling, especially one covering two or more surfaces, and close to Pearl's national composite average of $260. With insurance, though, paying $250 out of pocket for one filling usually means your deductible isn't met, you're in a waiting period, the dentist is out of network, or an alternate benefit applied.
It isn't recommended unless your dentist specifically says the decay is early and can be monitored. Once a hole forms in the enamel, it can't heal on its own, and some cavities reach the inner tooth within months. A filling that costs about $146 to $174 today could become a root canal and crown costing over $2,500.
Filling is usually cheaper in the long run. An extraction costs about $135 to $500, but replacing the tooth with an implant costs about $2,000 plus up to $1,500 for the abutment and crown. A missing tooth can also let neighboring teeth shift.
Without insurance, four average fillings cost about $584 to $696 at NewMouth's average price, and more for large composites. With insurance at 80% coverage and a $50 deductible, four fillings with a $150 in-network fee each would cost about $160 out of pocket.
A dentist may hold off if the decay is still early demineralization that can remineralize with fluoride and better hygiene. They may also skip a filling if the tooth needs a crown because the cavity is too large or the tooth is cracked, or if the tooth can't be saved and needs extraction.
Sources and 2026 Verification
Sources were opened and checked on October 27–29, 2026.
- NewMouth: Dental care costs with and without insurance (updated April 29, 2026): average filling, root canal, crown, extraction, and implant costs.
- CostHelper: Cavity filling cost (2026): amalgam, composite, and inlay/onlay ranges by surfaces.
- Pearl: Composite filling national cost (updated May 2026): 170–450 range, $260 average, based on ADA fee survey data.
- Healthline: How long it takes for a cavity to form: stages of decay and reversibility of early demineralization.
- NADP: Dental benefits plan design data and ADA News: Annual maximums: deductibles and annual maximums.
- Delta Dental: DeltaCare USA Basic Plan for Families, New York: sample DHMO filling copays.
Note: Prices are national averages and ranges, not quotes. In-network fees and scenario figures marked hypothetical are examples. Your cost depends on your dentist, location, plan, and the exact CDT codes billed. Ask for a pre-treatment estimate before treatment.
