Ohio EFDA Board Prep (Hottle
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For maxillary teeth what position should the patient be in - Answer✅✅Supine
what is the most common grasp - Answer✅✅The pen grasp and the modified pen
grasp
how to stabilize the rubber dam - Answer✅✅ligating the tooth farthest from the
clamped tooth
what are bases and liners used for - Answer✅✅bases and liners are used to protect
the pulp or to aid in its recovery, or both.
What is pulpitis? - Answer✅✅Inflammation of the pulp
A minimal depth restoration - Answer✅✅extends about 0.5mm- 1.5mm into dentin
moderate depth - Answer✅✅1mm into dentin, but more than 0.5mm from the
pulp
Near pulpal exposure - Answer✅✅less than 0.5mm away from the pulp
, what is the criteria for a cavity varnish - Answer✅✅used to protect the pulp from
being adversely affected by materials
normal bond strength for glass ionomer is greater than of zinc phosphate -
Answer✅✅true
Silver - Answer✅✅41% - 71% combines easily with mercury
copper - Answer✅✅lower copper; less than 9% high copper; 12-30%. Decrease
expansion ( creep) less marginal breakdown
Tin - Answer✅✅15-30% aids in combining the mercury with the alloy
zinc - Answer✅✅0-1% prevents oxidation during the manufacturing process
reduces brittleness
combination of tin and mercury result in - Answer✅✅gamma 2 phase, which leads
to increase in flow and corrosion and a decrease in strength that predisposes the
restoration to fracture
what is creep - Answer✅✅creep is the slow change inn dimensions of the amaglam
due to prolonged exposure to stress
what happens when amalgam get contaminated with moisture -
Answer✅✅bubbles of hydrogen from the water cause excessive delayed expansion
the compressive strength of amalgam 20 mins after placement - Answer✅✅6%
what is the vice - Answer✅✅is a box shaped at the lower end of the retainer that
has an opening for threaded spindle to move in and out of.
what functions as a receptacle for the side and ends of the matrix -
Answer✅✅guide slot in the vice
where will the larger diameter of the band be placed - Answer✅✅larger openings
best adapt to the occlusal portion of the tooth crown. when the smaller opening
adapts to the constricted cervical portion of the crown.
The junction of two walls within a cavity prepartion is known as ? - Answer✅✅Line
angle
Most amalgam contains approximatelly what perecent of mercury ? -
Answer✅✅50%
when the dentist places a pin at what location is it placed ? - Answer✅✅into dentin
on the pulpal floor
Book)|Brand New Exam Questions
with 100% Correct Clear Verified
Answers| All Graded A+|Latest
Premium Update|100%
Guaranteed Success.
For maxillary teeth what position should the patient be in - Answer✅✅Supine
what is the most common grasp - Answer✅✅The pen grasp and the modified pen
grasp
how to stabilize the rubber dam - Answer✅✅ligating the tooth farthest from the
clamped tooth
what are bases and liners used for - Answer✅✅bases and liners are used to protect
the pulp or to aid in its recovery, or both.
What is pulpitis? - Answer✅✅Inflammation of the pulp
A minimal depth restoration - Answer✅✅extends about 0.5mm- 1.5mm into dentin
moderate depth - Answer✅✅1mm into dentin, but more than 0.5mm from the
pulp
Near pulpal exposure - Answer✅✅less than 0.5mm away from the pulp
, what is the criteria for a cavity varnish - Answer✅✅used to protect the pulp from
being adversely affected by materials
normal bond strength for glass ionomer is greater than of zinc phosphate -
Answer✅✅true
Silver - Answer✅✅41% - 71% combines easily with mercury
copper - Answer✅✅lower copper; less than 9% high copper; 12-30%. Decrease
expansion ( creep) less marginal breakdown
Tin - Answer✅✅15-30% aids in combining the mercury with the alloy
zinc - Answer✅✅0-1% prevents oxidation during the manufacturing process
reduces brittleness
combination of tin and mercury result in - Answer✅✅gamma 2 phase, which leads
to increase in flow and corrosion and a decrease in strength that predisposes the
restoration to fracture
what is creep - Answer✅✅creep is the slow change inn dimensions of the amaglam
due to prolonged exposure to stress
what happens when amalgam get contaminated with moisture -
Answer✅✅bubbles of hydrogen from the water cause excessive delayed expansion
the compressive strength of amalgam 20 mins after placement - Answer✅✅6%
what is the vice - Answer✅✅is a box shaped at the lower end of the retainer that
has an opening for threaded spindle to move in and out of.
what functions as a receptacle for the side and ends of the matrix -
Answer✅✅guide slot in the vice
where will the larger diameter of the band be placed - Answer✅✅larger openings
best adapt to the occlusal portion of the tooth crown. when the smaller opening
adapts to the constricted cervical portion of the crown.
The junction of two walls within a cavity prepartion is known as ? - Answer✅✅Line
angle
Most amalgam contains approximatelly what perecent of mercury ? -
Answer✅✅50%
when the dentist places a pin at what location is it placed ? - Answer✅✅into dentin
on the pulpal floor
