PA EFDA BOARD EXAM LATEST VERSION
2024 ACTUAL EXAM WITH DETAILED
QUESTIONS AND CORRECT
ANSWERS|(VERIFIED ANSWERS)
In permanent teeth, the process of enamel formation is completed
about ___ years before eruption. Correct Answer 3
What is the composition of enamel? Correct Answer 95%
inorganic matter, 5% organic matter and water
What is the SECOND hardest material in the body? Correct
Answer dentin
What does the term elastomeric mean? Correct Answer having
elastic or rubber-like qualities
an alginate absorbing excess water is termed what? Correct
Answer imbibition
what is a final impression used for? Correct Answer an accurate
reproduction of teeth and surrounding tissue
what is the negative reproduction of dental arches and
surrounding tissues? Correct Answer impression
at what point in a procedure is a mylar matrix placed? Correct
Answer before etching
,the retainer (toffelmire) is positioned from what surface? Correct
Answer buccal
Where is the wedge inserted to position the matrix band firmly
against the gingival margin? Correct Answer lingual embrasure
what instruments are used to contour a matrix band? Correct
Answer burnisher or mirror handle
a matrix band is made of what? Correct Answer thin flexible steel
what stabilizes the tofflemire matrix band? Correct Answer
wooden wedge
what type of stain can chlorhexidine cause? Correct Answer
extrinsic
most common type of temporary coverage for crown and bridge?
Correct Answer custom provisional
why only intermittent pressure of a tooth when polishing? Correct
Answer heat dissipates between strokes
Course, extra course, medium, fine and extrafine are different
_____ of polishing paste? Correct Answer grit
removal of calculus, debris, stain, and plaque from teeth Correct
Answer oral prophylaxis
where on the tooth do you begin to use prophy cup? Correct
Answer gingival third
what is the different between catalyst and a base? Correct
Answer Base- basic ingredient of material
catalyst- increases the rate of chemical reaction (makes it set)
,Would you use a polymer crown on an anterior tooth? why?
Correct Answer yes, because its tooth colored
What agent is used in topical anesthetic? Correct Answer
Benzocaine
How long should topical anesthetic be placed for more profound
soft tissue analgesia? Correct Answer 60 to 90 seconds
Dry angles are an effective way to control saliva secretions from
Correct Answer stensen's duct
what type of ZOE lacks strength and long-term durability? Correct
Answer type I (temporary cement)
This type of cement is a hybrid of silicate and polycarboxilate
cement Correct Answer glass ionomer
what material is supplied as a paste/paste system and also in
cartridges? Correct Answer polyether
What is a class I cavity Correct Answer decay in pits and fissures
of occlusal surface
What is a class II cavity Correct Answer decay on proximal
(mesial or distal) surfaces of premolars and molars
What is a class III cavity? Correct Answer decay in proximal
surfaces (Mesial or distal) of incisors and canines
What is a class IV cavity? Correct Answer decay in proximal
surfaces (mesial or distal) of incisors and canines and involves
the incisal edge or angle of tooth
, What is a class V cavity? Correct Answer decay on the gingival
third of facial or lingual surface of any tooth
what is a class VI cavity? Correct Answer decay on incisal edges
of anterior teeth and the cusp tips of posterior teeth caused by
abrasion, wear, or defects
Stensen's duct Correct Answer back cheek by first molar
pterygomandibular raphe Correct Answer Fold of tissue that
extends from the junction of the hard and soft palates down to the
mandible
gingival embrasure Correct Answer triangular space of gums
between the teeth
incisal embrasure Correct Answer triangular space between
incisal edge of teeth
furcation Correct Answer The space between two roots where
they meet the crown
Frenum Correct Answer Band of tissue that passes from the facial
oral mucosa at the midline of the arch to the midline of the inner
surface of the lip
oropharynx Correct Answer central portion of the pharynx
between the roof of the mouth and the upper edge of the epiglottis
uvula Correct Answer soft tissue hanging from the middle of the
soft palate
dorsal Correct Answer top of tongue
ventral Correct Answer underside of tongue
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