Last updated: March 2026
How Much Does Dental Onlay Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Porcelain Onlay | $700 – $1,500 | $225 – $600 |
| Gold Onlay | $800 – $1,600 | $250 – $650 |
| Composite Onlay | $650 – $1,200 | $200 – $475 |
CPT/ADA Code: D2644
What Affects the Cost
- Geographic location (urban areas cost 20-40% more)
- Dentist experience and specialization
- Type of dental insurance plan (PPO vs HMO/DHMO)
- Whether the procedure is classified as preventive, basic, or major
- Lab and material costs
- Number of teeth or surfaces involved
Insurance Coverage
Typical coverage: Major restorative — typically 50% after deductible
Most dental PPO plans have an annual maximum of $1,000-$2,500. Preventive care (cleanings, exams, X-rays) is typically covered at 100%. Basic procedures (fillings, simple extractions) at 70-80%. Major procedures (crowns, bridges, implants) at 50%. Many plans have a 6-12 month waiting period for major work.
How to Save Money
- Dental schools offer procedures at 50-70% discount
- Dental discount plans save 20-50% for $80-$200/year
- Ask about payment plans — many dentists offer CareCredit 0% financing
- Community health centers provide sliding-scale pricing
- Get quotes from 2-3 dentists in your area
- Consider dental tourism for expensive procedures
Related Procedures & Costs
Frequently Asked Questions
A dental onlay is an indirect restoration that covers one or more cusps of a tooth. It is more extensive than an inlay but less invasive than a full crown, preserving more natural tooth structure.
An onlay preserves more healthy tooth structure than a crown. It is preferred when the tooth has enough remaining structure to support the restoration. Crowns are needed for more extensive damage.
Porcelain and gold onlays can last 15-30 years. They are very durable and, when well-maintained, often outlast composite fillings.