Dental chairs and units

A dental unit is the treatment center with the patient chair, the dentist’s instrument delivery and the assistant’s side that your practice uses every day. This category compares dental chairs and units that a public source shows US practices can buy, one row per model. The criteria are type of unit, instrument delivery, price, integrated camera and imaging, water hygiene, left-hand conversion, and installation and service.

For each model the manufacturer, the model name and the US seller are shown separately, because they are often different companies. The company that installs and services a chair is not always the one that makes it.

As of October 18, 2026, the overview covers eight models from four manufacturers: A-dec, Boyd Industries, DENTALEZ and Dentsply Sirona. None of the models has a public price: A-dec and Boyd ask practices to request a quote, and DENTALEZ and Dentsply Sirona show no price on the product page. Boyd’s two chairs are patient chairs without a delivery system, so compare them with the other chairs only on what they include.

The guide does not assess ergonomics, durability or clinical quality, and nothing here says one chair is better than another.

Manufacturer and US seller

• A-dec (A-dec 300, 400 and 500): A-dec's US & Canada site refers practices to their A-dec Territory Manager and to their local authorized A-dec dealer for quotes⁵²Provided by the vendor
• Boyd Industries (M3000LC and M300X): Boyd equipment is bought directly through Boyd's factory-trained sales representatives or through an authorized Boyd dealer⁵³Provided by the vendor
• DENTALEZ (Forest 5400 and 6400): Benco's vendor page lists the Designer Friendly Forest dental equipment line⁵⁴Provided by the vendor
• Dentsply Sirona (Intego and Intego Pro): Dentsply Sirona's US site presents Intego and offers contact with its Treatment Center product specialists⁵⁵Provided by the vendor

Price

• A-dec: No price is published; the FAQ says to request a quote from the local A-dec dealer¹²Provided by the vendor
• Boyd Industries: on request⁵¹
• DENTALEZ: No price is shown on the DENTALEZ product page; the site offers contact with a dental sales rep³⁶Provided by the vendor
• Dentsply Sirona: No price is shown on Dentsply Sirona's US Intego page; the page offers contact with Treatment Center product specialists²¹Provided by the vendor

Type of unit and instrument delivery

• A-dec 300: A-dec 300 dental chair; mount style floating post mount or Radius (single or dual mounting); chair controlled from the delivery system control pad or a foot switch¹Provided by the vendor A-dec 300 Pro delivery system choices: Radius, support center, side (cabinet or wall mounted), 12 o'clock duo and cart; Continental upgrade on Radius and support-mounted systems²Provided by the vendor
• A-dec 400: A-dec 400 dental chair combined with a Radius delivery system; mount style floating post mount or Radius (single or dual mounting)²⁷Provided by the vendor
• A-dec 500: Chair with delivery system: the A-dec 500 dental chair is available with the A-dec 500 Pro delivery system with a 7-inch touchscreen; mount style is a floating 2-inch post mount or Radius left/right¹⁰Provided by the vendor The A-dec 500 Pro delivery system comes as Radius (rotates around the chair) or 12 o'clock duo (rear mounted); Continental style is available on Radius¹¹Provided by the vendor
• Boyd M3000LC: Orthodontic and pediatric dental patient exam & treatment chair with a motorized vertical lift column base (8-inch lift), DC motor actuators and integrated foot control⁴⁸Provided by the vendor Boyd lists the M3000LC as a patient exam & treatment chair; its standard features and options list no delivery system⁵⁰Provided by the vendor
• Boyd M300X: Exam & treatment chair with a fixed pedestal base and motorized reclining back; Boyd calls it its most economical chair⁴⁴Provided by the vendor Boyd lists the M300X as an exam & treatment chair; options include a chair-mounted exam light, and no delivery system is listed⁴⁶Provided by the vendor
• DENTALEZ Forest 5400: Patient chair that rises up to 36.5 inches; supports up to a 525 lb patient (650 lb total system capacity, excluding delivery unit and light)³⁴Provided by the vendor Forest delivery systems are listed as separate products: Forest IC and Euro chair-mount delivery systems, 7000 Series side-delivery systems and the Forest 3486 delivery system³⁵Provided by the vendor
• DENTALEZ Forest 6400: Forest 6400 platform patient chair; lift capacity 525 lb (patient only; 650 lb total with delivery unit and light)³⁹Provided by the vendor
• Dentsply Sirona Intego: Treatment center with chair-mounted light, interface and integrated instruments; available as Intego and Intego Pro¹⁹Provided by the vendor Two delivery styles: Continental (CS) with whip arms, or Traditional (TS) over the patient with hanging hoses; dentist element rotates up to 240°²⁰Provided by the vendor

Camera and imaging on the unit

• A-dec 300, 400 and 500: A-dec lists intraoral cameras (KaVo DIAGNOcam) and intraoral scanners among the clinical devices that can be integrated into A-dec delivery systems¹³Provided by the vendor
• Dentsply Sirona Intego: Integrated SiroCam F/AF/AF+ autofocus intraoral cameras²²Provided by the vendor

For the Boyd and DENTALEZ chairs we found no public description of an integrated camera or imaging when we searched on October 18, 2026.

Water hygiene in the unit

• A-dec 300: Self-contained waterline maintenance system with a 2-liter water bottle, tubing made with AlphaSan and ICX waterline treatment⁵Provided by the vendor
• A-dec 500: Timed flush is standard on both A-dec 500 Pro versions; the page lists an A-dec Self-Contained Water System and an A-dec Waterline Maintenance Guide among the delivery system documents¹⁴Provided by the vendor
• Dentsply Sirona Intego: Automatic purging of all instrument waterlines on the dentist and assistant side; a water bottle for controlled water quality can be filled with Dentosept solution for permanent disinfection; a cleaning adaptor flushes saliva ejector and HVE tubing²³Provided by the vendor

For A-dec 400 and the DENTALEZ chairs we found no public description of water hygiene when we searched on October 18, 2026.

Left-hand conversion

• A-dec 300: The Radius delivery system rotates around the dental chair for complete left/right compatibility⁶Provided by the vendor
• A-dec 400: Left/right versatility: the Radius delivery systems, cuspidor and assistant's instrumentation rotate around the chair³¹Provided by the vendor
• A-dec 500: Left/right conversion: yes for both the Radius and the 12 o'clock duo version of the A-dec 500 Pro¹⁵Provided by the vendor
• Dentsply Sirona Intego: The Intego Ambidextrous option converts the treatment center from a right- to a left-handed position within 15 seconds²⁴Provided by the vendor

For the Boyd and DENTALEZ chairs we found no public description of a left-hand version when we searched on October 18, 2026.

Installation and service

• Boyd Industries: Freight and installation are not included in the price; all Boyd equipment is quoted FOB Clearwater, Florida; Boyd uses a network of 300+ technicians across North America for warranty and non-warranty service⁴⁹Provided by the vendor

For A-dec, DENTALEZ and Dentsply Sirona we found no public description of installation or service terms when we searched on October 18, 2026.

Questions to ask before you request a quote

• What does the chair cost delivered and installed, and are freight, installation, training and sales tax included?
• Does the model fit your operatory, and what must be ready for vacuum, compressed air, drains and power before installation?
• How is the unit’s waterline treated, which system is built in, and which routines and consumables does it require?
• Who services the model where your practice is located, what does the service plan cover, and how fast does a technician come when the chair is down?
• How long is the warranty, what does it cover, and for how long will parts be available for the model?
• What is the lead time from order to first patient, and what happens to your old chair?