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True four‑handed dentistry is the _______________.

A. use of a dental assistant together with the dentist B. concept of skilled dental professionals working together in an ergonomically designed environment to improve productivity, quality of care, and physical well-being of the operating team C. use of faster techniques to cut down on chair time D. use of the latest equipment using microscopes

To practice true four‑handed dentistry, all the following criteria must be met EXCEPT for one. Which one is the exception?

A. The operating team and patient are seated comfortably in ergonomically designed equipment. B. Motion economy is practiced. C. Preset cassettes/trays are utilized. D. The dentist oversees all instrument transfers.

Considering the five categories of motion classification, a Class III motion is when _______________.

A. the entire arm and shoulder as when reaching into a supply tub B. fingers and wrist motion as used when transferring an instrument to the operator C. movement of the fingers only as when picking up a cotton roll D. fingers, wrist, and elbow are used, as when reaching for a handpiece E. the entire torso as when turning around to reach for equipment from the fixed cabinetry

The zones of activity in four‑handed dentistry include all the following EXCEPT for one. Which one is the exception?

A. The operator's zone. B. The activity target zone. C. The assistant's zone. D. The transfer zones.

The zones of activity that should be avoided to decrease stress during chairside procedures are ____________.

A. Class I and II B. Class II and III C. Class IV and V

Strategies for the operator/dentist in four‑handed dentistry include all the statements listed below EXCEPT for one. Which one is the exception?

A. Confining eye focus to the field of operation. B. Avoid twisting and turning to reach instruments. C. Always provide distinct verbal instructions for each instrument exchange. D. Use non-verbal signals to indicate instrument transfers.

Strategies for the dental assistant in four‑handed dentistry include all of the following EXCEPT for one. Which one is the exception?

A. Maintaining the order of both dental instruments and materials according to their sequence of use. B. Developing a thorough understanding of the procedure, recognize the patient's needs, anticipate the operator's need, and recognize any change in the procedure. C. Working with the operator to establish and follow a safe, standardized, and predictable instrument transfer protocol. D. Asking the operator to indicate if there is any change in the procedure.

If one moved the entire torso to reach for an instrument on the counter, this would be a motion classified as ____________.

A. Class I B. Class II C. Class III D. Class IV E. Class V

The team must be aware of each other’s needs, recognize the need to reposition the patient and operating team, as necessary to reduce strain, improve access and visibility, and reduce unnecessary movement by transferring instruments only within the transfer zone.

A. True B. False

This assistant has been complaining about fingers and hands cramping, after using the keyboard so much lately. Which of the following would be a good exercise to help relieve this stress?

A. Forward stretch B. Forward bend C. Backward bend D. Shake it out

The operator’s zone for a right-handed operator extends from______________.

A. 12 to 3 o’clock B. 7 to 12 o’clock C. 12-2 o’clock D. 4-7 o’clock

When using a microscope, the dentist can sit at which position and maintain good vision while moving the patient’s head into the path of vision?

A. 7 o'clock B. 11 o'clock C. 12 o'clock D. 2 o'clock

Suggestions for conserving motion in dentistry include all EXCEPT for one. Which one is the exception?

A. Place the patient in a supine position B. Provide work areas that are 1 to 3 inches below the elbow C. Reduce the length and number of motions made by the operator and the dental assistant to accomplish routine and repetitive tasks D. Using operating stools with abdominal rests for the operator and assistant

The computer keyboard should be_____________ inches below elbow height.

A. 1-2 B. 2-4 C. 4-6 D. Parallel with elbow

The principles of motion economy include all of the following EXCEPT for one. Which one is the exception?

A. May not be practiced in the business office B. May be practiced in the business office C. Reduces stress D. Practiced by the dentist and the assistant

It is the responsibility of the assistant to anticipate any changes in instrument needs based on _______________.

A. observations of the treatment procedure as noted in the oral cavity. B. the arch being treated C. age of the patient D. amount of insurance coverage

In the “Single-Handed Transfer” the assistant’s hand is divided into two parts which consist of _______________.

A. thumb/finger and palm portions B. fingertips and open hand C. little finger area and thumb-finger area D. pick-up and delivery portions

When transferring an instrument when the A/W syringe and oral evacuator are both being used _______________.

A. the A/W syringe is transferred to the hand holding the oral evacuator for a short period of time B. the A/W syringe remains in the same hand and the instrument transfer is modified C. the oral evacuator is placed in the holder until the transfer is completed D. a saliva ejector is used for the transfer to take place

Which of the following is NOT a benefit of proper instrument transfer techniques?

A. Percutaneous injuries associated with use of dental instruments can be minimized using a prescribed transfer technique. B. Reduction of neck strain for the patient. C. The operator can maintain vision on the operative field thus reducing eyestrain associated with changing light intensity and focal length accommodation. D. The operating team conserves time and motion during a procedure.

Which is NOT part of the procedure used to transfer the dental handpiece to the operator?

A. handpiece is made parallel with the instrument to be exchanged. B. return of the handpiece in the pick-up portion of the assistant's hand is done in the same manner as any other instrument even though it is bulkier. C. handpiece must be transferred to the palm of the operator due to its increased bulk. D. The return of the handpiece in the pick-up portion of the assistant’s hand is done in the same manner as any other instrument.

Which statement is true when transferring scissors?

A. The assistant picks up the scissors from the tray with the right hand. B. The operator modifies the hand position by placing the thumb and smallest (little) finger into the rings of the handle. C. The handles remain closed during the transfer. D. The scissors are made parallel to the operator’s hand.

To relieve stress reduction, the clinical and business staff should:

A. Increase continuing education learning. B. Perform ergonomic exercises periodically. C. Rest and remove self from the work site for a short period of time. D. Increase water intake.

Concerning the assistant’s requirements during instrument transfers, all of the following are true EXCEPT for one. Which one is the exception?

A. As the instrument transfer begins, the working ends of instruments need to be positioned for the proper dental arch, up for the maxilla and down for the mandible. B. During the transfer, the assistant needs to use positive pressure to ensure the operator senses that the instrument has been delivered; this eliminates the operator from looking away from the site or fumbling the delivered instrument. C. Immediately after the transfer debris from the used instrument should be removed before returning it to the tray or to the operator for use again. D. The operator will request the time for an instrument transfer.

Placing supportive equipment and supplies within a __________ radius of the assistant’s hands as well as confining movements to the oral cavity and the adjacent transfer zone over the patient’s chest will result in the conservation of time and motion during the procedure.

A. 12-inch B. 18-inch C. 21-inch D. 24-inch

Six‑handed dentistry in Endodontics may require a clinical assistant to perform all the following EXCEPT for one. Which one is the exception?

A. Additional retraction B. Material preparation C. Increased visibility D. Final point insertion

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The Concepts of Four-handed Dentistry Including Ergonomic Instrument Transfer and Exercises for Stress Reduction Test Preview

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The Concepts of Four-handed Dentistry Including Ergonomic Instrument Transfer and Exercises for Stress Reduction
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