OHIO EFDA BOARD PREP HOTTLE
BOOK TEST. QUESTIONS WITH
CORRECT ANSWERS. LATEST
EDITION 2025-2026. GRADED A
____ is soluable in the oral cavity and will dissolve in time, so be careful not
to get it near the cavosurface margin. - ANSvarnish
____ is the material used as a pulp stimulator - ANScalcium hydroxide
_________ and _________ that exists in the tooth structure must be
extended into the amalgam - ANSConvexities; concavities
A gingival retractor clamp has - ANSTwo jaws, two bows and four notches
a green stone may be used in finishing an amalgam restoration in order to -
ANSeliminate high spots and gross flash at the margins
A minimal depth restoration - ANSextends about 0.5mm- 1.5mm into dentin
A minimal depth restoration - ANSextends about 0.5mm- 1.5mm into dentin
A restoration must be replaced if the amalgam: - ANSHas a submarginal
area greater than .02mm
1
, 2
A thin stainless steel matrix strip held in place by a wooden wedge and
supported by compound can be used when placing a _______ amalgam
restoration (such as D of 6 or 11). - ANSclass III
Any pulp protecting compound must be placed ____ the application of
cavity varnish. - ANSbefore
Attrition is the pathologic wearing away of tooth structure by friction (such
as agressive tooth brushing). - ANSfalse
Cavity varnish is used in an amalgam restoration because it _____. -
ANSoffers a seal at the margin, prevents tooth discoloration from the
amalgam
cavosurface margin are formed by ? - ANScavity wall whit an unprepared
tooth surface
cells which build reparative ( secondary) dentin are called -
ANSOdontoblast
combination of tin and mercury result in - ANSgamma 2 phase, which leads
to increase in flow and corrosion and a decrease in strength that
predisposes the restoration to fracture
Contact areas serve two purposes - ANS1. Keep food from packing
between the teeth and 2. to help stabilize the dental arches.
2