Midmark · Dental Equipment · $7,000 – $15,000
A Grade A unit with under 8,000 hours on the motor and fresh upholstery runs $13,500–$15,000; drop to Grade B (moderate staining, slight hydraulic drift, 10K–14K hours) and you're looking at $9,500–$12,000. The foot pedal potentiometer wear alone can justify a $1,200–$1,800 price haircut if it's sticking or non-responsive.
Push the chair up and down 10 times in person - if it stops mid-travel or hesitates, the hydraulic valve is about to fail (repair: $1,400–$1,800). Flex the backrest padding with your palm; if it bottoms out or feels like cardboard, replacement upholstery is $2,100–$2,800. Turn on the foot pedal light and watch for flicker; LED replacement isn't cheap on these units.
Southern California (Irvine, LA, San Diego) has steady demand because Heartland Dental and Western Dental keep rotating out older chairs - 4–5 year cycles. Texas is also hot right now; Sage Dental's expansion into Dallas means they're bulk-buying refurbs in Q1–Q2.
| 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... | ●●●●○ |
No. A-dec 500 holds resale value better and the foot pedal is bulletproof, but it's also 15 lbs heavier and doesn't recline as far back - matters if your hygienists are shorter. UltraComfort is lighter, better ergonomics for taller ops, same reliability. Different animal, not better or worse.
If the seller won't tell you motor hours or there's a service gap longer than 18 months, walk. Also check if the armrests have cracks - replacement arms are $800–$1,100 each, and they hide that in photos.
Yes, hard yes. If a chair doesn't hold 3–4 preset positions, your team wastes 2–3 minutes per patient re-adjusting. Over 8 patients a day, that's 16–24 lost minutes. Preset memory failures are common after 12K hours.
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Buying direct from a retiring solo practice saves you 18–24% versus a dental dealer middleman ($1,500–$2,400 per chair). I can also flag hidden motor hour counts or previous water damage within 48 hours, which dealers won't disclose until after your deposit clears.