dental chair

Dental chair unit

dental chairThe purpose of a dental chair is to provide all the facilities such as cleaning, anesthetic gas, different types of tools, X-ray attached at one place, and comfort to the patient.

for all dental treatments, dental chairs are used such as scaling, tooth cutting, tooth extraction, taking the x-ray, for RCT, implant, etc, and dental surgery. more comfortable treatment for patients by high-speed & low-speed handpiece.

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Dental light important in the dental unit

A dental light is use for the polymerization of resin-based composites. It is use for treating dental material.
It can LED-base lighting. for seeing the proper view of the operating area. for classifying problems inside of the mouth.

dental chair

dental chair working principle behind the function of a dental chair /dental chair function

The dental chair works on the principle of pneumatics or mechanics for one or the other handpieces. In a dental chair, the up-down and the forward-backward of the chair are controlled by two DC motors named up-down motor and backrest motors,

and the air rotors air motors are worked with the help of air and water air is supplied by the compressor. Cut tooth by the handpiece, use suction, clean mouth by 3-way syring.

All the equipment attached with chair & chair connected with the compressor

Environmental inspection factors in the preventive maintenance of a dental chair
proper cleaning of the dental chair, suction unit, spitoon unit, oiling of air rotors, ups or servo stabilizer for preventing voltage fluctuations, use distillation water only in bottle.

1. Hand hygiene and latex hypersensitivity.
2. Sterilization of unwrapped instrument.
3. Dental water quality concerns.
4. Contact dermatitis.

dental chair

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Safety concerns with a dental chair

A device a cone beam CT scanner is use for 3d images of teeth etc. Emits more radiation which can be hazardous.
The pneumatics of the chair works properly or not. The ultrasonic cleaning tube is working properly.

Common problems in a dental chair

1. Foot/rheostat control located at the bottom of the chair.
2. Infection control the pathogenic infection located on the handpiece of the chair.
3. Water control controls the flow of water present on the handpiece of the chair.
4. Voltage fluctuations, air, water leakage, suction chocked, etc.
5. Physical strain.

dental chair
6. No turning back.
7. Less lubrication. More friction.
8. Synthetic covers.
9. Accumulation of dust easily.

Doctor’s Controls

Located on the backrest on the right side of the chair (viewed from the back)

Assistant’s Controls
Two switches on the assistant’s side (left) of the chair
(1) Same function as the doctor’s controls (except doctor’s bottom switch)
(2) The AUTO/MANUAL mode toggle switch under the chair. The doctor’s lowermost switch only operates if this toggle switch is set to AUTO.
Pedestal Controls
One footswitch at the rear of the chair that can operate from either side: • forwards to raise, backward to lower the chair

The main function of the dental chair

1. diagnosis
2. Prevention.
3. Treatment of the patient’s disorders related to the oral cavity.

A dental treatment unit is a utility outlet and standby tool for dentists which provides:

  • Tools used by the dentist (drills, etc.).
  • Delivery of water, air, and suction to the patient.
  • The removal of expectorated waste (spit) and foreign matter from the patient’s mouth.

1. It hurts badly.
2. Sometimes if not controlled it may burn.
3. This dental curing light quickly starts curing it falls on composites. Dentists had to excavate the composites and again start the process.


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