How to Properly Install a Dental Chair – Step by Step Guide

how to install dental chair


Dental chair installation can be overwhelming, but this is a task that can be accomplished without hiring a professional. Professional dental chair installation can be quite expensive, with an average fee of around $500. But if you do your research, you will find out that the installation process is not that complicated.

In this article, we will be giving you pointers on how to approach this procedure without the need to hire a professional. Standard dental chair installation will not require particular specialized skill, just the basic knowledge about the tools will be able to carry you through this process.

What You Need for Dental Chair Installation

Before we can begin the installation of the dental chair, it is important that you already have all the tools on-hand. This will ensure that the installation will go smoothly and quickly. Below are the basic tools you will need to accomplish dental chair installation:

  • Scissor or Sharp Knife
  • Crescent Wrench (Adjustable)
  • 1/8-inches Allen Wrench
  • Socket Wrench
  • Optional: Open/Ended Box Wrench Set

These are the basic tools you will need, but some special cases will require additional equipment. As always, it is best first to consider every facet of your dental chair and your clinic in preparation for the task ahead.

What Type of Floor is the Dental Chair Installed On?

The first factor that you need to consider is the type of flooring you have in your clinic. Is your floor made from concrete or wood? There will be a different installation approach for each floor type. Once you have positioned the dental chair to its ideal location, you can begin anchoring the chair to the floor.

Concrete Floors

Concrete floors will require extra hardware equipment to prep for chair installation. However, once you have properly secured the dental chair, this type of level can provide excellent stability and security.

How to Anchor Dental Chair on a Concrete Floor:

Step 1 – Prepare the dental chair by placing the anchor bracket on its base.

Step 2 – Mark where you will be drilling the holes for the masonry anchor. Position the chair over the marks.

Step 3 – Take out your hand drill with a 10mm diameter masonry bit.

Step 4 – Drill approximately 100mm down to the concrete floor.

Step 5 – Drive the M10 anchor into the drilled hole and make sure the washer is placed snugly atop the floor. Tighten the bolts.

Step 6 – Remove the washer and anchor bolt and reposition the dental chair.

Step 7 – Realign the anchor bracket using the expandable concrete anchor.

Step 8 – Drive the anchor bolt through the washer and the anchor bracket and into the expandable concrete anchor. Tighten the bolt securely onto the anchor racket.

Step 9 – Move the dental chair to its ideal position.

Wooden Floors

Wooden floors installation is less complicated as it is easier to drill through this type of flooring than concrete. Still, you must conduct measurements properly to avoid mistakes which can ruin the integrity of wooden flooring.

How to Anchor Dental Chairs on a Wooden Floor:

Step 1 – Prepare the dental chair by placing the anchor bracket on its base.

Step 2 – Mark where you will be drilling the holes for the masonry anchor. Position the chair over the markers.

Step 3 – Take your hand drill with an 8.5mm drill bit and burrow at least 50mm down the floor.

Step 4 – Position the dental chair over the drilled holes. Make sure the anchor brackets are correctly aligned.

Step 5 – Use the M10-50 lag screws and drive them into the anchor brackets. Tighten the lag screw until the dental chair is adequately secured without any wobbling.

As long as you apply the proper anchoring method to the appropriate floor, you can guarantee that your dental chair will be as stable and secure as possible.

Safety Precautions When Anchoring Dental Chairs to the Floor

Keep in in mind that anchoring the dental chair will be the foundation that prevents future accidents from occurring. An improperly anchored dental chair is highly susceptible to cause injuries. This is why it is essential to consider the type of flooring it will be installed in.

As a rule of thumb, check to see if the floor is at least 82mm thick. Anything less will increase risks in the future. If your flooring is less than 82mm thick, contact your contractor to reinforce the area where the dental chair will be installed.

Also, you should consider the positioning of tubing and wires when deciding the position of the dental chair. Are you sure that this position will allow adequate room for maneuverability during dental procedures? Will it prevent tangling problems with tubing and wires?

Final Notes on Anchoring Dental Chairs

Once you have all of the above factors checked out, it is time to install the Floor Box Frame. Place the Floor Box Frame on top of the dental chair’s frame alignment hole. Thread the hole on the floor and make sure it is perfectly aligned with the dental chair. Use the M5 screw that comes with the dental chair installation kit onto the spring pad. Make sure you place a washer on each mounting bolt to help better secure the frame.

Dental Chair Installation Step-by-Step Guideline

Now that you have prepped the floor and has successfully anchored the chair, it is time to do the assembly portion. Below is a guideline on how to assemble each integral section of the dental chair.

Support Center Installation

Now that the dental chair has been appropriately anchored down to the floor, it is time to install the support center. This is relatively simpler than anchoring, so no need to fret.

Step 1 – Prepare the wood board by first removing the fixing screw and position the support center.

Step 2 – Take the previous two screw groups and place the support center on the dental chair.

Step 3 – Take the M10 screws from the kit and push them through the spring pad and washer. Make sure that each screw is appropriately secured to the support center.

Step 4 – Remove the fixing screws and packing frame from the support center.

Step 5 – Take the cover and place it on top of the delivery system pillar.

Step 6 – Insert the column of a dental unit in an upright position and into the delivery system pillar.

Assistant's Instrumentation Installation

This installation will require two tasks to complete.

Assistant's Instrumentation Installation Task 1:

Step 1 – Pass the pipeline through a bull stick downwards.

Step 2 – Insert the Assistant’s Instrumentation through the bull stick.

Step 3 – Take the M4 screws to limit and secure the Assistant’s Instrumentation.

Assistant's Instrumentation Installation Task 2:

Step 1 – Take the screws from the kit and secure the spring pad and washers on each mounting bolt onto the support center pillar.

Step 2 – Take the cover and place it on top of the Assistant’s Instrumentation pillar.

Step 3 – Take the fulcrum bar from the inside of the Assistant’s Instrumentation pillar.

Step 4 – Place the fulcrum bar of the Assistant’s Instrument underneath the circle.

Step 5 – Slide the pipeline down through the fulcrum bar.

Step 6 – Insert the bull stick into the fulcrum bar.

Step 7 – Use the M4 screws to limit and secure the bull stick in place.

Spittoon Installation

The spittoon is quite heavy, which is why I suggest you ask someone to help you during this step.

Step 1 – Place the spittoon into its default/unused position.

Step 2 – Use M4 screws in order to secure the spittoon in place.

Step 3 – Install and secure the spittoon screen cover, screen, and the spittoon itself.

Additional Notes:

Spittoons can be either top or low-mounted. Here are guidelines on how to approach both installations:

Top-Mounted Spittoons

Step 1 – Place the hanging tray inside the connector.

Step 2 – Make sure the hanging stray is aimed at the installing hole.

Step 3 – Use screws to secure the hanging tray in place.

Down-Mounted Spittoons

Step 1 – Ask someone for help to lift the spittoon. Place it over their shoulders for better balance and stability.

Step 2 – Screw and secure it to the dental unit along with the instrument tray.

Step 3 – Take the dental unit arm and place it inside the upright column of the delivery system. Tighten the nut properly.

Step 4 – Use the appropriate screws to limit and secure the tumbler as well as the delivery system.

Installation of the Delivery System

Similar to the spittoon, you will get two options for the delivery system: the top-mounted and low-mounted delivery system. As you would expect, there will be two different installation approach for each. Fortunately, these steps are similar to the installation of spittoons. Check the previous actions for the guide on installation.

Operating Light and Arm Installation

Step 1 – First, open the cover on the light arm and tumbler.

Step 2 – Slide the pipeline through the fulcrum bar located on the Assistant’s Instrumentation.

Step 3 – Slide the operating light arm into the delivery system’s upright column.

Step 4 – Secure the light arm using screws.

Step 5 – Make sure to connect the identically colored joints. Then, insert the operating light into the operating light pillar.

Upholstery Installation

This will be an integral part of your dental chair, as it will provide comfort for both the patient and dentist during dental procedures. It is crucial to ensure that the seat, backrest, and head cushion are all correctly assembled.

Step 1 – Install the cushion first. Take the cushion and fasten it to the seat using the screws.

Step 2 – Take the backrest and place it on the fixing board and screw it in place.

Step 3 – Aim the fastener of the backrest onto the card slot located on the fixing board. Press down on the backrest and fix it in place.

Step 4 – Take the headrest and insert the frame into the hole located on the backrest. Push the headrest down.

This pretty much covers the full installation of a standard dental chair. Of course, there are additional parts/accessories have become essential in modern dental chairs. We will also be tackling the installation of these optional parts below.

Optional Part: Display Installation

Installation of the Display will consist of two tasks. Don’t worry, though as this is not at all complicated and is quite simple to complete.

Display Installation Task 1:

Step 1 – Place the cover atop the operating light pillar.

Step 2 – Place the display bar into the operating light pillar.

Step 3 – Slide the wire into the display frame and pull it out the other side, following the directional arrows.

Step 4 – Setup and insert the circle of the display frame.

Display Installation Task 2:

Step 1 – Insert the pillar connecting shaft.

Step 2 – Install the light arm.

Step 3 – Aim the display to the desired position at the installation hole and secure it in place using 4xM4 screws.

Testing and Adjustments of the Dental Chair

There you have it; you have successfully installed the dental chair as well as assembled all necessary parts. However, you are not yet done with tinkering with the dental chair yet. You must test and adjust the dental chair to your personal preference.

During the testing procedure, you will be adjusting key aspects of the chair, such as the arm tension, arm light tension, and the water flow. Below is a guide on who to check whether the dental chair is up to standards.

Dental Chair Testing Checklist:

  • Check to see if the dental chair is securely anchored to the floor. The chair must not wobble or shake.
  • The maneuverability of the chair is working correctly. Check the lift, footswitch, and control/touchpads to see if it all functions correctly.
  • The headrest is secured and not loose.

Delivery System Testing Checklist:

  • Check to see if the water and air coolant are functioning correctly.
  • Test the spray. Does it operate using the right water flow pressure?
  • Tweak the valves and switches to ensure you have full control of the water pressure.
  • Test the foot control.

Operating Light Testing Checklist:

  • Test the operating light and adjust the light intensity to see if it is working correctly.
  • Move the light balance arm tension to see if it has been appropriately adjusted.

Assistant’s Instrumentation Testing Checklist:

  • Test the air and water syringe buttons.
  • Test the high-powered suction.
  • Test the saliva ejector.
  • Test to see if the cup fill timing is set correctly.
  • Test to see if the spittoon water flow cleans the bowl properly.
  • Test to see if the bowl drains water properly.

Air, Water, Power Pipeline Testing Checklist:

  • All tubing and wirings are correctly connected and without any tangling issues.
  • Any excess tubing or wiring are appropriately stored away.
  • Air pressure is regulated at 550Kpa.
  • Floor box does not have air and water leaks.

Final Installation Process – Installation of Covers

This is the last lap of the dental chair process. It will be divided into three sections: installation of support center cover, installation of delivery system arm cover, and installation of the front and backboard.

Installing the Support Center Cover

Step 1 – Place the right board on the outer side of the cabinet. Align the board accurately.

Step 2 – Place the screw into the pillar groove, then screw in the nut and tighten it correctly.

Step 3 – Place the left board on the opposite side and follow ‘step 2’.

Step 4 – Aim the bump on the board towards the location hole.

Step 5 – Press on the shutter button and push the board and secure the cover.

Step 6 – Follow the previous steps for installing the backboard.

Note: Make sure that the top board is at the cover level.

Installing the Delivery System Arm Cover

Step 1 – Familiarize yourself with the delivery system arm cover. It has four holes on the inside cover and five on the outside.

Step 2 – Buckle in the eight shutter buttons.

Step 3 – Use the locking screws and backspin two rounds after tightening.

Step 4 – Install the two-tumbler arm shell and buckle all 14 shutter buttons.

Installing the Front and Back Board Cover

Step 1 – Insert the front board over the edge slot of the floor and slide it into the slot.

Step 2 – Adjust the position of the cover so that the gap between the slot and cover is well-adjusted.

Step 3 – Place the end behind the board and secure it using the shutter button and the slot connected to the front board.

Step 4 – Follow ‘step 2’ for what to do with the backboard.

There you have it. You have now finished installing your dental chair as well as all essential parts. Now, to ensure that your dental chair maximizes its usage, maintenance will be a crucial factor to consider.

Dental Chair and Equipment Maintenance Tips

We will be dividing maintenance tips into four different sections. Each section will cover maintenance tips for daily, weekly, monthly, and annually. Yes, dental chairs can be quite a handful to maintain/clean, but these steps ensure the longevity and reliability of all dental equipment.

Daily Dental Chair and Equipment Maintenance Checklist:

  • Sterilize handpieces.
  • Disinfect operatory equipment after every use.
  • Run water through the handpieces and the water/air syringes.
  • Run water through handpiece waterlines after every use.
  • Run the suction cleaner through the saliva ejector tubing and operatory HVE.
  • Clean the delivery unit traps.
  • Drain and clean the ultrasonic cleaner.
  • Regularly remove/replace the waste container.
  • Lubricate the prophy and contra-angles after use.

Weekly Dental Chair and Equipment Maintenance Checklist:

  • Check around for safety hazards within the clinic.
  • Replace the traps on the delivery units.
  • Perform a biological spore test with each sterilizer.
  • Check to see if all gaskets are in good condition.
  • Check to see if the O-rings on the handpiece couplers need replacement.

Monthly Dental Chair and Equipment Maintenance Checklist:

  • Clean and check to see if the master trap needs replacing.
  • Clean the panoramic cassettes and intensifying screen.
  • Clean the model trimmer.
  • Clean and check to see if the plaster trap needs replacing.
  • Check the level of your nitrous oxide systems and emergency oxygen units to see if they are working correctly.
  • The patient monitoring equipment must always be up to code and is functioning correctly.
  • Sit on the dental chair to see the clinic from the patient’s point of view. Does the clinic look clean and comforting?

Annual Dental Chair and Equipment Maintenance Checklist:

  • Review OSHA, HIPAA state guidelines. Conduct OSHA training programs.
  • Review emergency procedures with all clinic staff.
  • Inspect all safety precautions such as smoke alarms, fire extinguishers, and emergency lighting within the establishment.
  • Replace oil of the compressor.
  • Replace cassette seals and sterilizer door gasket.
  • Schedule a check-up and maintenance for the X-ray equipment.

Additional Advice

Other factors would help in keeping your dental chair and equipment in great shape. Below are tips that will offer significant help in finding a solution in the event where a malfunction occurs with any of your dental equipment.

Always Have a Maintenance Kit On-Hand

A dental equipment maintenance kit will help guarantee that all your tools remain in tip-top shape. This specialized maintenance kit will include the following items:

  • Vacuum
  • Air Compressor
  • Handpiece
  • Spare Light Bulb
  • Spare Gasket and O-Rings
  • Keep All Manuals and Invoices

Remember to keep all relevant documents together. In the event wherein warranty, issues arise, you may need to provide every single document regarding the dental chair to request for repair services or replacements.


Proper installation of your dental chair is vital for optimum performance. Remember that if you are not 100% confident about installing all the equipment yourself, it is always better to hire a professional. If you do decide on going through with the installation yourself, another bit of advice I can offer you is to be organized. Segregate each part of the dental chair by their category. Seeing all the parts and screws can be quite overwhelming when taken in all at once. However, once divided by section, it will be considerably more manageable.