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Dental Assisting EXAM #2|98 Questions and Answers
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Dental Assisting EXAM #2|98 Questions and Answers
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Dental Assisting EXAM #2|98Questions and Answers
Mandrel - -Metal shaft on which a sandpaper disk or abrasive material is
mounted
- Where were rotary instruments introduced to dentistry - -1940s
- Which handpiece is considered the most versatile handpiece used in
dentistry - -Low-speed handpiece
- The low-speed handpiece is available in speeds ranging from 10,000 rpm
to ___ - -30,000
- Which handpiece is used by the dentist in ever restorative procedure - -
High-speed handpiece
- How many rpm can the high-speed handpiece reach - -450,000
- What mechanism is used to hold the bur in a high-speed handpiece - -
Friction grip
- Which handpiece uses mechanical radiant energy of water and sound
vibrations to create a pulsating effect on the tooth surface - -Ultrasonic
handpiece
- Because it comes into contact with blood, saliva, and tissue and must be
sterilized before reuse, the dental handpiece is identified as a - -Semicritical
instrument
- The instrument used primarily for the removal of decay and soft dentin is a
- -Spoon excavator
- The instrument of choice for placing resin restorative material is a - -
Composite instrument
- The gingival margin trimmer is a type of - -Chisel
- The instruments the dentist requires at the beginning of a procedure are
the - -Mirror and explorer
- Mouth mirrors can be used for - -Indirect vision, light reflection, and
retraction
, - The cutting edge of a ___ is nearly perpendicular to the handle of the
dental instrument - -Hoe
- A discoid-cleoid is a double-ended variety of a - -Carver
- A _____ is a type of instrument used to place and shape the amalgam
material before it hardens - -Restorative instruments
- The working end of an instrument that is notched or has toothlike
projections is - -Serrated
- Which of the following is an example of an accessory instrument - -Howe
pliers, spatula, scissors
- The part of the instrument that attaches the working end to the handle is
called the - -Shank
- A burnisher has a - -Smooth working end
- The high-speed handpiece uses - -Friction-grip burs
- A low-speed handpiece operates at speeds up to ____ rpm - -40,000
- A prophy angle attaches to the - -Low-speed handpiece
- The most commonly used sizes of round burs are - -¼ to 8
- Inverted cone burs are used to - -Remove caries and place retention
grooves
- After use, the dental handpiece is - -Sterilized
- The instrument used to refine a tooth preparation is a - -Low-speed
handpieces and hand instruments
- Carbide burs are used for - -Removing old fillings, finishing crown
preparations, and tooth preparation
- A newer technique developed to replace tooth cutting instruments is - -A
laser handpiece
- The air abrasion system delivers __ to clean deep pits and fissures - -
Aluminum oxide
- Torque can be defined as - -A twisting or turning force
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