Title: Module 2 Quiz
Course: DEH 2530 Expanded Duties > Section: Module 2 - Four Handed Dentistry Principles

Q: How are instruments arranged on a tray or in a cassette to faciltate four-handed dentistry?
- From largest to smallest instrument
- In order of use
- In alphabetical order
- By color-coded handles
A: In order of use

Q: Motion economy involves eliminating, as much as possible, which of the following during patient treatment?
- Movement of the non-dominant hand of the assistant
- Movement of the fingers, wrist and elbow of the assistant
- Twisting of the torso of the assistant
- Both A and C are correct
A: Twisting of the torso of the assistant

Q: Operating _____________ are based on a "clock concept" to position the dental team.
A: zones

Q: The clinical assistant delivers the cotton pliers and the mouth mirror simultaneously, using a two-handed exchange, when the dentist places one hand on either side of the patient’s mouth at the beginning of the procedure.
- True
- False
A: False

Q: The operator's zone for a right-handed dentist is from __________ o'clock.
- 2 to 4
- 4 to 7
- 7 to 12
- 12 to 2
A: 7 to 12

Q: What is the recommended grasp for holding the oral evacuator?
- Pen grasp
- Modified pen grasp
- Palm grasp
- Palm-thumb grasp
A: Palm-thumb grasp

Q: When the patient is in the position with the head and knees at the same approximate plane, this position is called
- subsupine
- upright
- supine
- elevated
A: supine

Q: When treating a tooth in the mandibular arch, the transfer of the next instrument should have the instrument's working end turned __________.
- downward
- upward
- horizontally
- it doesn’t matter; the dentist will adjust it to the right orientation
A: downward

Q: Which of the following is not a benefit of utilizing proper instrument transfer technique?
- The operator can maintain vision on the operative field
- Time conservation
- Lowers risk of percutaneous injury
- Reduces the use of dental materials, thus saving money
A: Reduces the use of dental materials, thus saving money

Q: Which of the following is not a principle of four-handed dentistry?
- Proper positioning of dental team and patient
- Selection of lightweight dental supplies to reduce hand fatigue
- Preset trays and cassettes
- Utilization of trained auxiliaries for delegatable tasks
A: Selection of lightweight dental supplies to reduce hand fatigue