Midmark · Dental Equipment · $7,000 – $15,000
You'll see used units at $7k-$15k depending on whether the upholstery is original (kills $2k-$3k) and how clear the service history is. A chair with a 6-month or longer gap in service records drops $1,500-$2,000 because nobody knows what went wrong.
Pop the seat cushion and look for tears or water stains in the core foam - water damage means internal rot and mold, and it's not cosmetic. Check the foot pedal response with your hand; if it's spongy or sticks, the valve assembly is dying and that's $1,400 to replace. Run the chair through a full recline cycle three times; listen for grinding or hesitation in the hydraulic pump.
California DSOs are snapping these up because new chairs run $22k-$28k and practices can't absorb that in 2024. Texas market is softer - Heartland Dental's footprint there means they're selling refurb units in bulk, so used pricing is flatter.
| Model | Brand | Used Price | Key Spec | Value Score |
|---|---|---|---|---|
| Midmark UltraComfort ✓ | Midmark | $7,000–$15,000 | Dental chair, ergonomic, 300 lb capacity... | ●●●●● |
| ProMax 3D Plus | Planmeca | $40,000–$85,000 | CBCT 3D imaging, cephalometric, 23x26cm FOV... | ●●●●○ |
| OP 3D Pro | KaVo | $35,000–$70,000 | CBCT 3D, 16x13cm FOV, low dose... | ●●●●○ |
| Orthophos SL 3D | Dentsply Sirona | $38,000–$75,000 | CBCT panoramic ceph, 11x10cm FOV... | ●●●●○ |
Between 2,500 and 4,000 hours. You'll see a slow drip under the base. It's not catastrophic - you've got 4-6 weeks before it impacts chair function. Pump replacement is $3,200-$3,800 installed.
Not the arm itself. The quick-disconnect couplers for the high-speed handpiece clog with calculus spray buildup after 18-24 months of daily use. Sonic cleaning helps, but replacements run $180-$240 per coupling. Sage Dental has a standing order for these.
Foot pedal valve sticking or losing pressure sensitivity. Happens around 2,800 hours. It's a $140 valve cartridge and 90 minutes of labor. Second place is LED curing light driver board failure - that's a $280 part.
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I can turn a chair around in 6 weeks with full refurbishment and certification for $1,800-$2,200; that saves a clinic 3-4 months of waiting on factory backorders. On a 5-chair package, that's $9k-$11k in speed-to-revenue versus buying new.