EFDA Oregon Exam Questions &
Answers (Grade A+)
Etchant ? -
correct answer ✅Critical for enamel and dentin in the cavity prep
for good chemical bond.
Glass Ionomer used as a base? -
correct answer ✅Good adhesion to enamel and dentin, release
fluoride and has bonding strengths.
Zinc-oxide-eugenol type 1used as a base? -
correct answer ✅Sedative, insulating helps with irrated pulp. CANT
USE UNDER GLASS IONOMER AND COMPOSTIE.
Zinc phosphate type 2 used as a base? -
correct answer ✅Good base for it thermal insulation qualities and
can be used under polycarboxylate, ionomer and it can irrate the
pulp.
Trituration -
correct answer ✅Means mixing dental alloy with mercury.
, EFDA Oregon Exam Questions &
Answers (Grade A+)
Amalgamation -
correct answer ✅Actual chemical reaction that occurs between
the alloy and mercury.
Alloy -
correct answer ✅Combination between alloy and mercury.
Polycarboxylate used as a base? -
correct answer ✅Has elastic properties and contains fluoride and
can be put under any restoration. Also proactive and insulating.
IRM used as a base? -
correct answer ✅last for 6-12 months and is temp. Also has a
sedative base.
Sedative base ? -
correct answer ✅Help with soothing the pulp for decay that is
irrating the pulp.
Insulating base? -
correct answer ✅Placed in deep cavity preps to protect the tooth
from thermal shock.
Answers (Grade A+)
Etchant ? -
correct answer ✅Critical for enamel and dentin in the cavity prep
for good chemical bond.
Glass Ionomer used as a base? -
correct answer ✅Good adhesion to enamel and dentin, release
fluoride and has bonding strengths.
Zinc-oxide-eugenol type 1used as a base? -
correct answer ✅Sedative, insulating helps with irrated pulp. CANT
USE UNDER GLASS IONOMER AND COMPOSTIE.
Zinc phosphate type 2 used as a base? -
correct answer ✅Good base for it thermal insulation qualities and
can be used under polycarboxylate, ionomer and it can irrate the
pulp.
Trituration -
correct answer ✅Means mixing dental alloy with mercury.
, EFDA Oregon Exam Questions &
Answers (Grade A+)
Amalgamation -
correct answer ✅Actual chemical reaction that occurs between
the alloy and mercury.
Alloy -
correct answer ✅Combination between alloy and mercury.
Polycarboxylate used as a base? -
correct answer ✅Has elastic properties and contains fluoride and
can be put under any restoration. Also proactive and insulating.
IRM used as a base? -
correct answer ✅last for 6-12 months and is temp. Also has a
sedative base.
Sedative base ? -
correct answer ✅Help with soothing the pulp for decay that is
irrating the pulp.
Insulating base? -
correct answer ✅Placed in deep cavity preps to protect the tooth
from thermal shock.
