Final review
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| Prevention of carpal tunnel syndrome (CTS) can be accomplished by | warming the muscles and joints of hands by slowly opening and closing hands.
frequently resting the hands.
holding one arm out in front of body with hand extended, then pulling back gently with fingers of other hand.
All of the above
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| The goal of ergonomics is to help people | stay healthy while performing their work more effectively.
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| Periodic stretching and strengthening of the muscles that support the back, neck, forearms, wrists, and hands will help keep them strong and healthy. | True
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| In carpal tunnel syndrome (CTS), tendons swell and exert pressure on the | median nerve.
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| Optimal operator positioning includes | working from a neutral position.
repositioning the patient as necessary
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| Ergonomic chairside suggestions include | avoiding prolonged, awkward positions and remaining in one position for extended periods of time.
rearranging items in the operatory for easy use and using muscles to remain balanced for ease of movement.
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| The use of ambidextrous gloves can place excessive tension on the | thenar eminence.
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| During procedures, frequently used items should be | within a comfortable distance, not above the shoulders.
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| Eyestrain is caused by not focusing intensely at one depth for long enough periods during dental procedures. | False
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| The first symptom of carpal tunnel syndrome (CTS) is often a(n) | painful tingling in one or both hands that occurs at night.
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| To relieve stress on the back, neck, and shoulders a dental assistant can | perform a full back release and head rotations.
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| Body mechanics for the chairside dental assistant include | sitting with a straight back, supported by a backrest, and placing thighs parallel to the floor.
placing elbows close to body.
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| The early onset of pain should alert the dental worker that an imbalance exists and | serious damage can occur over time if it is ignored.
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| The number of carpal bones surrounding the carpal tunnel is | eight
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| All the following factors contribute to musculoskeletal disorders (MSDs) except | twisting.
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| The full back release involves | dropping the head down slowly while allowing the arms and head to fall between the knees.
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| The ideal working position for a dental assistant is | a neutral position sitting upright with body weight evenly distributed.
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| Frequent reaching, twisting, and working with the arms in awkward positions can cause all of the following except | stress.
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| Which of the following helps to stretch shoulder muscles that may be strained? | Shoulder shrugging
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| Repetitive motion, overflexion, and overextension of the wrist can significantly increase the risk for | cumulative trauma disorders (CTDs).
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| The goal in designing the dental treatment area is to achieve | comfort and mobility for the dental team.
privacy and comfort for the dental patient
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| The administrative area is separate from the reception area and the clinical area to | be HIPAA compliant.
provide adequate patient privacy.
keep patient charts and information where other patients do not have access.
do all of the above.
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| The dental staff lounge should be used | by the staff during personal time.
for staff meetings.
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| The ideal temperature for the reception area of a dental office should be __° F. | 72
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| Which form of delivery provides the dentist with the easiest access to the dental handpieces without twisting his or her body? | Front
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| Which of the following is considered the best type of lighting to reduce energy usage and use a “truer” white light? | Light-emitting-diode (LED) lighting
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| According to OSHA standards, the central sterilization area must be clearly divided into two sections called | contaminated and clean
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| The upright position is used for all the following except | restoration of cavities.
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| The part of a dental assistant’s stool designed to help the user avoid lower back pain caused from leaning over during dental procedures is the | abdominal bar
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| To make a patient’s wait more comfortable, the reception area should have | current reading material.
adequate seating for all patients.
proper lighting.
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| For better visibility, the dental assistant’s stool is positioned ______ the operator’s stool. | at an equivalent height to
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| Why is it important to not touch a new halogen light bulb with bare fingers when an old treatment room light is being replaced? | The oil from the fingers will cause the bulb to overheat and break.
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| The foot-controlled device that controls the speed of a dental handpiece is called a(n) | rheostat.
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| The master switches to be turned on when opening the office in the morning, and turned off when closing the office in the evening are | the central air compressor.
the vacuum unit.
the dental and radiographic units.
All of the above.
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| Patient dental chairs | have finger- or foot-operated control systems to adjust the chair for dental treatment.
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| Two features found on a dental assistant’s stool but not on the operator’s stool are the | footrest and abdominal bar.
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| The room in which a dentist discusses the diagnosis and treatment plans with a patient is the | dentist’s private office.
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| Water is removed from the patient’s mouth by | using the saliva ejector.
using the high-volume evacuator.
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| The recommended floor covering in the clinical and laboratory areas is | linoleum.
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| The patient position in the dental chair in which the head is lower than the chest is called the _____ position. | subsupine
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| For the treatment room light to be used effectively for indirect vision, it should be positioned from the ___________ if you are a right-handed operator. | left side
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| The EFDA performs an expanded function while the dentist is in the same treatment area. The supervision under which this assistant works is | direct.
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| What is indirect vision? | Viewing an object with a mirror
The object being viewed in reverse
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| During four-handed dentistry, the operator must have | easy access to the patient’s oral cavity.
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| The correct positioning of the operator’s stool should include | None of the above
CORRECT ANSWER
The operator’s stool should be positioned so that the feet are flat on the floor, the thighs are parallel to the floor, and the backrest is positioned to support the lower portion or the small of the back.
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| When performing a single-handed instrument transfer with a right-handed dentist, the dental assistant transfers the dental instrument with __________ hand. | the left
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| Based on the “clock concept” of operating zones, the patient’s face would represent what area? | The center of the clock with the top of the head at the 12-o’clock position
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| The instrument exchange used to transfer surgical instruments is a | two-handed instrument exchange
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| Which of the following factors does not influence the manner in which the operator grasps and holds an instrument for use? | The height of the operator
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| The finger rest that stabilizes the hand so that there is less possibility of slipping or traumatizing the tissue in the mouth is called a | fulcrum.
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| One way to help the patient feel more comfortable and relaxed is to | initiate conversation with the patient.
ask the patient whether he or she has any questions about the treatment.
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| When the mouth mirror is used intraorally, the mirror must be positioned ___________ to the working surface. | parallel
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| Viewing an object with a mirror is called ________ vision. | indirect
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| The transfer zone is the area where | instruments and dental materials are exchanged.
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| What term describes when a dentist assigns or entrusts a specific procedure to a dental assistant? | Delegate
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| When turning on the dental light over a patient seated and positioned in the supine position, the dental light is directed | on the patient’s chest.
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| In the classification of motions, which classification involves the movement of fingers, wrist, and elbow? | III
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| Using the operating zones based on the “clock concept,” the assistant’s zone for a left-handed operator is | 8:00 to 10:00.
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| When greeting and escorting the patient to the treatment room, a dental assistant should | address patient using his or her title.
establish eye contact and smile.
introduce himself or herself.
do all of the above.
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| One of the best ways to know your patients, and be better prepared for the day ahead, is to have a brief meeting or review | each morning, before patients arrive
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