EFDA Exam Review Questions with 100% Correct
Answers |Verified
Which of the following procedures takes place during the second appointment for the
placement of a cast restoration? - ✔✔Try-in and cementation
Sealants are indicated for____ - ✔✔Some maxillary central and latoral incisors.
The first step in placing dental sealants is to _____ the surface. - ✔✔Clean
The gauge of the needle refers to the thickness of the needle; the larger the gauge, the _____
the needle - ✔✔Thinner
The dentist will treat severely decayed and endodontically treated primary teeth with -
✔✔Stainless steel crowns
A preliminary impression would be used for - ✔✔Custom trays
The guidelines for mixing dental cements tell you to - ✔✔Dispense the powder first and then
the liquid
The final step after cementing the provisional coverage is - ✔✔Checking the occlusion
Sticky foods should be avoided during orthodontic treatment because they - ✔✔Loosen
bands, pull out ligature ties, and bend arch wires
,Which of the following must be used to protect dental personnel from the occupational risks of
nitrous oxide by reducing the N20 released into the treatment room ? - ✔✔Scavenger
system and a patient mask that fits well and doesn't leak
Forceps extraction - ✔✔Perform on a tooth that is fully erupted and has a solid intact crown
which is grasped firmly with forceps
During the loading of an anesthetic syringe, the _____ is loaded first - ✔✔Anesthetic
cartridge
Which component of a treatment care plan would be delivered to the patient first - ✔✔Pain
or discomfort
An example of enamel bonding is the placement of what? - ✔✔Sealants
The HVE suction tip should be positioned - ✔✔The edge of the suction tip is even with or
slightly beyond the occlusal surface or incisal edge
Anesthesia - ✔✔A temporary loss of feeling or sensation.
Responsibilities of the dental assistant in documenting the clinical examination include -
✔✔Charting the correct tooth and correct conditions
When referring to a tooth charting diagram, the teeth are presented from the perspective of
looking ______ the patient's mouth, and the ride side of the patient's mouth appears on the
______side of the page. - ✔✔into; left
A gingival retraction cord is placed ____after the crown preparation is completed; it is removed
just before______ the final impression is taken. - ✔✔after, just before
, Using Black's classification of cavities of pits and fissures on the occlusal surface of molars and
premolars is considered a Class ___ restoration or cavity - ✔✔Class I
The most frequently selected form of pain control used in dentistry is _______ - ✔✔Local
anesthesia
Which of the following choices represents an endogenous stain? - ✔✔An excessive amount
of fluoride during the development of the tooth
______ is added to dental amalgam alloy powder to suppress - ✔✔Zinc
A matrix must be used to create a temporary wall for which of the following classifications of
tooth restoration? - ✔✔Class II, III, IV
To contour a metal matrix band for posterior teeth, place the band on a paper pad and rub the
inner surface of the band with ____until the ends begin to curl. - ✔✔A burnisher or the end
of a mirror handle
What is the most common type of attachment for fixed appliances - ✔✔Bonded bracket
Materials that are versatile in their uses, such as for specialized dental bases, include -
✔✔Dental cements
Protective bases are placed when it is necessary to protect the pulp before the restoration is
placed, because without this protection there may be: - ✔✔Sensitivity and damage to the
pulp
The HVE is able to take up water and debris because a __ volume of air is moved into the
vacuum hose a ___ pressure to create a strong suction. - ✔✔High;low
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