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PA EFDA Board Exam with Questions with 100% Correct Answers |Verified

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  • EFDA

PA EFDA Board Exam with Questions with 100% Correct Answers |Verified

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  • October 9, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • EFDA
  • EFDA
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EFDA Board Exam 2 | Questions with 100%
Correct Answers |Verified Latest Update

a tooth that exhibits pain and sensitivity during mastication is a symptom of what -
✔✔premature occlusion


after placing an amalgam, the surface is somewhat rough. what can this result in? -
✔✔plaque being caught in restoration potentially causing decay



alginate impressions must be poured within ____ so that distortion does not occur - ✔✔1
hour


besides hardness, size and shape of abrasive agents, what other factors must be considered
when polishing amalgams? - ✔✔concentration of abrasive agent


true or false: centric relation is a measure measurement of where the teeth are positioned
when the joints are aligned correctly and in contact? - ✔✔false


finishing a restoration involves contouring, removal of marginal discrepancies, _____ the
anatomy and _____ the amalgam surface - ✔✔defining, smoothing


having a poor contact which increases the potential of food impaction is a _____ proximal area
- ✔✔under contoured


heat during polishing of an amalgam restoration cause two things. Pupal damage and what? -
✔✔Bringing mercury from restoration to the surface, causing tarnish


How can the length or depth of the alginate impression tray borders be extended? -
✔✔utility wax

,If a restoration does not produce the original contours of the tooth, the restoration may need
what? - ✔✔more recontouring or be replaced


True or False: Rubber dam is the only way to isolate a tooth that needs to be polished? -
✔✔false



The time from induction of an anesthetic to its complete reversal is its... - ✔✔duration


there are two commonly used polishing agents used when polishing amalgams. one is pumice,
the other is _____ - ✔✔tin oxide


to avoid injury, the rubber polishing cup is directed _____ from the gingival third and pressed
_____ against the tooth surface - ✔✔away, lightly


True or False: topical anesthetic has a higher potential for overdose reaction due to being
prepared in a higher concentration - ✔✔true



What does the term synersis mean as it relates to alginate impressions? - ✔✔the
evaporation of water from alginate


What is not an instrument used for finishing and polishing amalgam restorations: brownie
points, green stone, carver, prophy cup - ✔✔carver



When would a light gauge, vacuum-formed resin material be used? - ✔✔bleach tray or
provisional coverage


what type of stain, found on some children's teeth, can be caused by poor hygiene and the
fungi are retained in bacterial plaque? - ✔✔green stain

, what is the Theory of Selective polishing? - ✔✔only polish the teeth that have staining or
need it, not all of the teeth


what is not something you evaluate before polishing an amalgam? Fractures, overhangs,
restoration age, decay - ✔✔restoration age


what the solution for topical anesthetic is compared to that of a local anesthetic, the
concentration in a topical solution is - ✔✔greater than local


Which type of impression material should be used to acquire an impression with low tear
resistance and high dimensional stability on tooth #18? hydrocolloid, polyether, polysiloxane,
polysulfide - ✔✔polysiloxane



topical anesthetic comes in which forms? - ✔✔liquid, gel, spray, and patch



a cingulum pit cavity preparation on tooth #10 is considered which classification? - ✔✔class I


the permanent tooth that has an H-shaped groove pattern on its occlusal surface is the -
✔✔mandibular second molar



why is a sedative base placed in a tooth prior to placing a restoration - ✔✔soothes an
irritated or damages pulp


when the pulp is stimulated by vibrations from a handpiece, this is referred to as what type of
stimulus? - ✔✔mechanical


which of the following is a source of gingival and periodontal infections? oral mucosa, tooth
decay, calculus, planktonics - ✔✔calculus

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