Most bad used equipment purchases are not caused by dishonest sellers. They are caused by buyers who looked at a chair for four minutes, liked the upholstery, and never ran the unit through a full cycle or asked when the compressor was last serviced. This checklist forces a slow, structured walk through everything in a dental operatory and utility room, one category at a time, so that the questions you should have asked get asked while you can still walk away.
How to use this template
- Print one copy per operatory or per major machine. Do not try to record two chairs on one sheet.
- Inspect with power, air, water, and vacuum on. Equipment that cannot be powered up should be priced as unknown condition, not as working.
- Fill in the serial number and model for every item before you leave. You will need them to price parts and check support status.
- Use the photo list at the end as a request to the seller if you are buying remotely, and treat missing photos as a red flag.
- Bring it to any technician inspection so the tech's findings and yours land on the same page.
Inspection header
| Field | Entry |
|---|---|
| Date of inspection | |
| Inspector name | |
| Seller name and phone | |
| Address of equipment | |
| Reason for sale | |
| Asking price (whole lot or item) | |
| Power, air, water, vacuum available? (Y/N) | |
| Technician present? Name and company |
Item register
| Item | Brand | Model | Serial number | Approx. year | Condition 1 to 5 |
|---|---|---|---|---|---|
| Chair 1 | |||||
| Chair 2 | |||||
| Delivery unit | |||||
| Operatory light | |||||
| Compressor | |||||
| Vacuum pump | |||||
| Sterilizer | |||||
| Ultrasonic cleaner | |||||
| Intraoral x-ray | |||||
| Pan or CBCT | |||||
| Sensors or PSP scanner | |||||
| Other |
Dental chair
Chair checks
- Runs through full range: base up and down, back recline, and return to a programmed position
- No drift down when loaded and no groaning at the top of travel
- Foot control and touchpad both operate every function
- Programmed positions save and recall correctly
- No hydraulic fluid on the floor, base, or cylinder shaft
- Upholstery: seams, cracks, sun fading, replacement set price checked
- Headrest slides and locks; articulating headrest holds position under hand pressure
- Armrests swing and latch; no missing hardware
- Junction box and hoses intact where the chair meets the delivery unit
- Toe board, covers, and trim present (missing plastics are surprisingly expensive)
- Brand still supported with parts; upholstery and control boards still available
| Chair notes | Finding |
|---|---|
| Cycle count or hours, if shown | |
| Noises or hesitation observed | |
| Estimated upholstery or parts cost |
Delivery unit and handpieces
Delivery checks
- Type confirmed: over the patient, rear, side, or cart
- Every handpiece tubing position holds pressure and drives a handpiece
- Air and water adjustments respond at each position
- Air/water syringe: clean spray pattern, no leak at the tip, buttons return
- Handpiece control block and gauges present and readable
- Foot control rheostat smooth with no dead spots; wet or dry type noted
- Self-contained water bottle present, sealed, and not cracked
- Saliva ejector and HVE valves work and shut fully
- Scaler, curing light, or electric motor built in? Powers up and holds settings
- Tray arm holds position; brakes and friction adjustable
- Tubing not cracked, sticky, or discolored near the connectors
| Delivery notes | Finding |
|---|---|
| Number of working handpiece positions | |
| Handpieces included (brand, model, condition) | |
| Tubing replacement needed? Estimated cost |
Air compressor
Compressor checks
- Oil-free or oil-lubricated identified; oil level and color checked if applicable
- Number of heads and rated users matches the operatory count you plan to run
- Starts, builds to cutout pressure, and shuts off within a reasonable time
- Pressure holds with the compressor off (listen for leaks at fittings)
- Duty cycle observed: does it restart almost immediately under no demand?
- Desiccant or membrane dryer present; desiccant color and age noted
- Tank exterior free of rust, pitting, and weeping at seams; tank drained regularly?
- Automatic tank drain present and working
- Intake filter clean; head or motor not visibly overheating
- Noise level acceptable for its location; vibration pads present
- Service records available; last head or ring service date noted
| Compressor notes | Finding |
|---|---|
| Time from cut-in to cut-out (seconds) | |
| Pressure drop over 10 minutes, no demand | |
| Water found in tank drain? (clear, milky, rusty) | |
| Hour meter reading |
Vacuum system
Vacuum checks
- Wet ring or dry type identified; water consumption and drain setup noted
- Rated number of simultaneous users vs. your operatory count
- Starts without straining; no grinding or squealing from the motor
- Suction measured at chairside with all HVEs open
- Solids collector and canister clean, lid gasket intact
- Amalgam separator present, model noted, collection container not full
- Separator age checked (units installed before June 14, 2017 lose grandfathered status by June 14, 2027)
- Piping condition and slope; no obvious patch repairs or sagging lines
- Motor amperage draw within nameplate range, if the technician can measure it
- Service records available
| Vacuum notes | Finding |
|---|---|
| Measured suction at the farthest operatory | |
| Separator brand, model, last service | |
| Odor or biofilm in the lines? |
Sterilizer and instrument processing
Sterilizer checks
- Type identified: gravity, pre-vacuum, or chemical vapor; chamber size measured
- Runs a complete cycle in front of you and reaches the rated temperature and pressure
- Door gasket pliable and seating; no steam escape at the door during the cycle
- Chamber interior free of heavy scale, pitting, or discoloration
- Printer or data logging works; paper or data card available
- Error codes cleared and cycle history reviewed if the unit stores it
- Trays, racks, and cassette holders included
- Distilled water use confirmed; reservoir clean
- Sterilization monitoring records available, including weekly spore tests
- A passing spore test obtained before the unit is used on patients
- Ultrasonic cleaner: heater works, foil test or manufacturer test performed, lid and basket present
| Sterilizer notes | Finding |
|---|---|
| Cycle count, if displayed | |
| Peak temperature and pressure observed | |
| Last preventive maintenance date |
Imaging
Imaging checks
- Intraoral heads: arm holds position without drift, no wobble at the yoke, timer and exposure settings respond
- Tubehead free of oil leaks; collimator and cone present and undamaged
- Pan or CBCT: unit powers up, completes a test rotation, and captures a test image
- Software version, license transferability, and computer requirements confirmed in writing
- Sensor cables inspected along their entire length for kinks and stress at the strain relief
- Sensor test images reviewed at full size for dead pixels, lines, and noise
- PSP scanner: plates counted, scratches checked, transport rollers clean
- Tube head and unit registration status with the state radiation program confirmed
- Most recent state inspection report obtained
- Calibration and service history available; manufacturer still supports the model
- De-installation and shielding implications discussed with a technician before purchase
| Imaging notes | Finding |
|---|---|
| State registration number and expiration | |
| Software and license transfer cost quoted | |
| Removal and reinstall quote |
Questions for the seller
| Question | Answer |
|---|---|
| Why is the equipment being sold? | |
| When was each item last used on a patient? | |
| Who serviced it, and can I contact them? | |
| What has been repaired or replaced in the last three years? | |
| Is anything known to be broken or intermittent? | |
| Are manuals, keys, remotes, and foot controls included? | |
| Is the equipment owned outright, leased, or financed? Any lien? | |
| Who is responsible for disconnection and removal? | |
| What is the deadline to have it out of the building? | |
| Will you accept a technician inspection before payment? | |
| What payment method and what proof of ownership can you provide? | |
| Is any software license or service contract transferable? |
Photo list to request or take
Photos
- Wide shot of the full operatory from the doorway
- Chair from both sides, plus the base and floor underneath
- Upholstery close-ups of every seam and the headrest
- Delivery head with all handpiece positions visible
- Tubing close-up at the connectors
- Serial number plate for every item, legible
- Compressor nameplate, hour meter, tank bottom, and drain
- Vacuum pump nameplate and the amalgam separator with its label
- Sterilizer display mid-cycle showing temperature and pressure
- Sterilizer chamber interior and door gasket
- X-ray tubehead, arm mount, and control panel
- Pan or CBCT from the front and side, including the column base
- Sensor cable at the strain relief, plus a full-size sample image
- Utility room wide shot with piping visible
- Any damage, rust, leak, or repair, photographed close up
- Short video of the chair cycling and the compressor starting
Decision summary
| Field | Entry |
|---|---|
| Items worth buying | |
| Items to exclude | |
| Estimated repairs and parts | |
| Estimated removal, freight, and install | |
| Total landed cost | |
| Offer amount | |
| Walk-away price | |
| Inspector signature |
How to run the inspection
Schedule the visit when the utilities are on. That sounds obvious, but a large share of used dental equipment is sold out of offices that have already closed, where the power has been cut and the water shut off. Equipment you cannot run is not "working equipment with no known issues." It is equipment of unknown condition, and it should be priced that way. If the seller cannot restore power, ask whether a technician can bring a generator or whether you can test after removal with a holdback on the payment.
Work in the order the sheet is printed. Start with the item register and fill in every serial number before you touch anything else, because that is the part buyers skip when they get excited. Serial numbers let you check the model year, confirm that parts are still available, and verify that what arrives on the truck is what you inspected. Then go category by category. Give each chair a full cycle, let the compressor reach cutout and sit, and run a complete sterilizer cycle even though it takes half an hour. The waiting is the inspection.
Allow real time. A single operatory plus a utility room is a solid ninety minutes if you are doing it properly. A whole office with six operatories, a pan, and a full utility room is most of a day. Budget for that and tell the seller up front so nobody feels rushed.
Who should do it, and when to bring a technician
The buyer should always be there. Even if you hire an equipment technician, you are the one who will live with the decision, and the walk-through tells you things a report will not, such as how the office was maintained, whether the utility room is a disaster, and how forthcoming the seller is.
Bring a technician when the money justifies it or when the risk concentrates in the utility room. A rough rule: if the deal is worth more than a few thousand dollars, if it includes a compressor or vacuum pump, or if it includes imaging equipment that must be de-installed, a technician inspection pays for itself. Technicians catch what a checklist cannot, such as an amperage draw that says a vacuum motor is near the end of its life, or a chair with a slow hydraulic leak that only shows under load. Our guide on what to expect from a dental equipment inspection covers what a typical inspection includes and costs.
For remote purchases, the photo list becomes the inspection. Send it as a list, ask for the photos before you discuss price, and treat vague or missing photos as a finding rather than an inconvenience. A seller who will not photograph a serial plate is telling you something. Our guide to buying used equipment on eBay and Facebook Marketplace covers the rest of the remote-purchase safeguards.
What "good" looks like
Good is not "no findings." A used operatory with zero findings usually means the inspection was too shallow. Good looks like a filled-in sheet where every line has an entry, the findings are specific ("chair drifts about half an inch over two minutes under load" rather than "chair seems fine"), and the decision summary at the end reaches a number you can defend.
Good also means the total landed cost is written down before you make an offer. Used equipment is priced on the item, but you pay for the item plus removal, freight, crating, reinstallation, plumbing and electrical changes, new tubing, upholstery, and the first service visit. Our article on the hidden costs of buying used dental equipment walks through the categories people forget, and shipping dental equipment covers freight and crating in detail.
Common mistakes
Inspecting the pretty things and ignoring the utility room. Chairs and cabinets are visible and photogenic. Compressors and vacuum pumps are neither, and they are the two items most likely to need immediate money. Give the utility room at least as much time as an operatory.
Accepting "it was working when we shut down." Equipment that has sat idle for months has its own problems: dried gaskets, seized vacuum pumps, corroded sterilizer chambers, and compressor tanks holding water. Idle time is a finding. Write down how long each item has been sitting.
Skipping the software conversation on imaging. A panoramic unit or CBCT is worth much less if the acquisition software license does not transfer or if the required driver only runs on an operating system you cannot deploy. Settle licensing in writing before you agree on price. The panoramic units guide and CBCT guide cover the technical side.
Forgetting compliance items that travel with the equipment. X-ray units are registered with a state program, and registration and inspection duties follow the equipment to its new address. Amalgam separators carry their own EPA obligations, including a new one-time compliance report after a change of ownership. These are covered in the compliance chapter and in x-ray registration and inspections.
Not writing a walk-away number before negotiating. Fill in the last two rows of the decision summary in the parking lot, before you talk price. It is the single most useful line on the page.
Related ChairsideSource resources
- The pre-purchase equipment checklist every buyer should use
- What to expect from a dental equipment inspection
- Course lesson: inspection and negotiation
- Five signs a used autoclave is a bad buy
- Dental equipment maintenance log template
This guide is educational content and does not constitute legal, financial, tax, or clinical advice. Laws and regulations vary by state and change over time. Consult your own dental-specific attorney, CPA, and state dental board before acting.