bases, liners, and intracoronal temporaries
UPDATED ACTUAL Exam Questions and
CORRECT Answers
bases and liners - CORRECT ANSWER these are used to protect the pulp or to aid in its
recovery, or both
pulpitis - CORRECT ANSWER inflammation of the pulp is called
caries
traumatic occlusion
effects of the cutting bur
desiccation
chemical irritation from restorative material
temperature change
dimensional change
lack of marginal seal - CORRECT ANSWER what are the 9 possible causes of pulpitis?
water or airwater spray coolant - CORRECT ANSWER what must be used with the high
speed instruments to minimize the traumatic effects of the cutting burs?
dessication - CORRECT ANSWER a strong stream of air directed at dentin that can injure
the pulp is called
dentinal tubules - CORRECT ANSWER pulpal irritants from the chemicals in the
restorative material can seep through what part of the tooth and contact the pulp?
, coefficient of thermal conductivity - CORRECT ANSWER different materials have
different rates of conducting heat which can be measured as the..
poor - CORRECT ANSWER enamel and dentin are what type of conductors of heat?
high - CORRECT ANSWER amalgam and metal alloy have a relatively _____ coefficient
of thermal conductivity.
lower - CORRECT ANSWER composite resin has a ______ coefficient of thermal
conductivity than enamel and dentin and do not pose a potential problem for thermal irritation.
sealers or liners - CORRECT ANSWER these function to seal off the cavity prep, and are
used in very thin layers
1-seal off cut dentinal tubules (preventing chemical irritation to the pulp, and amalgam from
discoloring the tooth)
2- seal off microscopic space between tooth surface and restoration (reducing leakage)
3- can NOT provide thermal insulation (too thin) - CORRECT ANSWER 3 basic
functions of sealers/liners
sealers or liners - CORRECT ANSWER this material can help prevent postoperative
sensitivity by reducing the infiltration or leakage of fluids and saliva at the margins of the new
restoration
cavity varnish - CORRECT ANSWER this type of sealer is composed of natural/synthetic
resins dissolved into an organic volatile solvent
varnish - CORRECT ANSWER Copalite is an example of this type of material
varnish - CORRECT ANSWER this material is soluble in the oral cavity and will dissolve
in time near the cavosurface