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Questions and Answers
What is the operating zone?
What is the operating zone?
- Where dental instruments are stored.
- Area where instruments & materials are passed.
- Where assistant sits to assist dentist.
- Operator is positioned to access the oral cavity & have best visibility. (correct)
In which zone does the assistant sit?
In which zone does the assistant sit?
Assisting zone
Where are rear delivery systems found?
Where are rear delivery systems found?
- Operating zone
- Transfer zone
- Assisting zone
- Static zone (correct)
What is the transfer zone?
What is the transfer zone?
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Study Notes
Dental Activity Zones
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Operating Zone
- Position for the operator to ensure optimal visibility and access to the oral cavity.
- Right-handed operators typically use a zone from 7 to 12 o'clock.
- Left-handed operators use a zone from 12 to 5 o'clock.
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Assisting Zone
- This is where the dental assistant is positioned for effective support.
- Provides easy access to instruments and evacuation tools as well as the dental unit and cart.
- Right-handed assistants occupy the zone from 2 to 4 o'clock.
- Left-handed assistants occupy the zone from 8 to 10 o'clock.
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Static Zone
- Contains rear delivery systems along with dental instruments and equipment for chair-side use.
- Right-handed setups are located from 12 to 2 o'clock.
- Left-handed setups are located from 10 to 12 o'clock.
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Transfer Zone
- The area located just below the patient's nose designated for passing and receiving instruments and materials.
- Right-handed operators utilize the transfer zone from 4 to 7 o'clock.
- Left-handed operators utilize it from 5 to 8 o'clock.
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