Dental Unit Components Quiz

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Questions and Answers

What is a rheostat used for?

  • To hold radiographs
  • To supply water
  • To illuminate the oral cavity
  • To operate dental handpieces (correct)

What does the dental unit waterline do?

Supplies water through hoses or water lines into dental handpiece.

What is the function of a three-way syringe?

Deliver a fine, thin stream of water, deliver a stream of air, deliver a combined stream of air and water.

What is the purpose of the operating light?

<p>To illuminate the oral cavity during a procedure.</p> Signup and view all the answers

What does an Oral Evacuation System do?

<p>Removes water, saliva, blood and other fragments.</p> Signup and view all the answers

Which of the following are types of oral evacuation systems? (Select all that apply)

<p>High volume evacuator (HVE) (B), Saliva ejector (D)</p> Signup and view all the answers

What is a saliva ejector?

<p>Metal/plastic mouthpiece which helps keep the mouth free from the interference of saliva.</p> Signup and view all the answers

What is the function of a High Volume Evacuator (HVE)?

<p>Scavenging, collection, and disposal of liquids, solids and aerosols.</p> Signup and view all the answers

What are disposable traps used for?

<p>Filtering mechanisms for the saliva ejector and HVE.</p> Signup and view all the answers

What is a cuspidor or spittoon?

<p>A bowl-like receptacle for the reception of saliva, fluids and debris coming from the patient's mouth.</p> Signup and view all the answers

What is the purpose of a tumbler holder?

<p>Holds the glass/tumbler used by the patient.</p> Signup and view all the answers

What does an X-ray viewer hold?

<p>Radiograph in place for reading and interpretation.</p> Signup and view all the answers

What does 'opaque' mean?

<p>Not transparent.</p> Signup and view all the answers

What is a bracket table used for?

<p>Holds the hand instruments and other materials.</p> Signup and view all the answers

What do push buttons or control fields allow?

<p>Adjustments of the chair for patient positioning.</p> Signup and view all the answers

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Study Notes

Dental Unit Components

  • Rheostat: A foot-controlled device enabling operation of dental handpieces, enhancing convenience during procedures.

  • Dental Unit Waterline: Delivers water through hoses directly into dental handpieces, essential for various dental tasks.

  • Three-Way or Air-Water Syringe: An instrument integrated with the dental unit, capable of delivering water, air, or a combination of both.

  • Functions of Three-Way Syringe:

    • Provides a fine stream of water for flushing or cleaning teeth
    • Delivers a focused stream of air
    • Combines air and water for versatile use in treatments

  • Operating Light: A crucial tool for illuminating the oral cavity, facilitating visibility during procedures.

  • Oral Evacuation System: Essential for removing fluids like water, saliva, and blood, ensuring a clean working environment.

  • Types of Oral Evacuation Systems:

    • Saliva Ejector: A small mouthpiece designed to keep the oral area free from saliva interference.
    • High Volume Evacuator (HVE): A powerful vacuum system for effectively collecting and disposing of liquids, solids, and aerosols during clinical procedures.

  • Disposable Traps: Filtering mechanisms attached to saliva ejectors and HVEs, aiding in hygiene and maintenance.

  • Cuspidor or Spittoon: A bowl-like receptacle for disposing of saliva, fluids, and debris from patients’ mouths.

  • Tumbler Holder: A device for holding the patient's tumbler, often equipped with a faucet for automatic filling with water.

  • X-ray Viewer or Opaque Glass Plate: A tool for holding radiographs in position, assisting in their reading and interpretation.

  • Opaque: Refers to a material that does not allow light to pass through, crucial for the function of certain dental tools.

  • Bracket Table: A supportive surface that holds hand instruments, handpieces, and other materials such as cotton and cotton holders.

  • Push Buttons/Control Field: Features that allow dentists to adjust the dental chair, positioning the patient conveniently for treatment.

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