EFDA Practice (Restorative Functions)
Exam Questions & Answers (Grade
A+)
What is used to stabilize a Tofflemire matrix band at the gingival
margin of a tooth?
-Floss
-Wooden wedge
-Retraction cord
-Metal clamp -
correct answer ✅Wooden wedge
Which of the following are involved in a Class II cavity restoration?
-Anterior mesial and interproximal surfaces
-Posterior mesial and occlusal surfaces
-Anterior distal and occlusal surface
-Posterior one surface with pits and fissures -
correct answer ✅Posterior mesial and occlusal surfaces
What are the four components of a composite resin?
-Glass ionomer, alloy powder, silica, organosilane compound
-Organic resin matrix, inorganic fillers, coupling agent, pigments
-Bis-GMA, tin, copper, polishable fillers
,EFDA Practice (Restorative Functions)
Exam Questions & Answers (Grade
A+)
-Resin matrix, eugenol, quartz fillers, inorganic coloring -
correct answer ✅Organic resin matrix, inorganic fillers, coupling
agent, pigments
One of the main DISADVANTAGES of using an illuminated dental
isolation system is
-a prolonged procedure time.
-the cost of mouthpieces.
-adherence to mucosa.
-its limited use in procedures. -
correct answer ✅the cost of mouthpieces.
After placement of an amalgam restoration, advise the patient to
-not chew or bite on the restoration for at least 72 hours.
-not chew or bite on the restoration for 24 hours.
-use a mouth rinse twice daily for one week.
-rinse with fluoride when he or she returns home. -
correct answer ✅not chew or bite on the restoration for 24 hours.
,EFDA Practice (Restorative Functions)
Exam Questions & Answers (Grade
A+)
Which of the following procedures does NOT require the use of a
fulcrum?
-Coronal polishing
-Suctioning
-Placing a dental liner
-Removing dental cement -
correct answer ✅Suctioning
What is an example of a Class VI cavity?
-Incisal angle
-Lingual pit
-Proximal surface
-Wear facet -
correct answer ✅Wear facet
A cavity preparation involving the incisal angle is classified as
-Class IV.
-Class V.
-Class III.
, EFDA Practice (Restorative Functions)
Exam Questions & Answers (Grade
A+)
-Class VI. -
correct answer ✅Class IV
What should the operator do after adjusting the occlusal-gingival
height of a stainless steel crown?
-Smooth the rough edges of the crown.
-Adjust the occlusal circumference of the crown.
-Line the crown with a thin layer of composite resin.
-Polish the occlusal surface of the crown with pumice. -
correct answer ✅Smooth the rough edges of the crown.
The mechanical means of mixing dental alloy and mercury is known
as
-bonding.
-amalgamation.
-coupling.
-trituration. -
correct answer ✅trituration.
How long is a mechanical retraction cord left in place?
Exam Questions & Answers (Grade
A+)
What is used to stabilize a Tofflemire matrix band at the gingival
margin of a tooth?
-Floss
-Wooden wedge
-Retraction cord
-Metal clamp -
correct answer ✅Wooden wedge
Which of the following are involved in a Class II cavity restoration?
-Anterior mesial and interproximal surfaces
-Posterior mesial and occlusal surfaces
-Anterior distal and occlusal surface
-Posterior one surface with pits and fissures -
correct answer ✅Posterior mesial and occlusal surfaces
What are the four components of a composite resin?
-Glass ionomer, alloy powder, silica, organosilane compound
-Organic resin matrix, inorganic fillers, coupling agent, pigments
-Bis-GMA, tin, copper, polishable fillers
,EFDA Practice (Restorative Functions)
Exam Questions & Answers (Grade
A+)
-Resin matrix, eugenol, quartz fillers, inorganic coloring -
correct answer ✅Organic resin matrix, inorganic fillers, coupling
agent, pigments
One of the main DISADVANTAGES of using an illuminated dental
isolation system is
-a prolonged procedure time.
-the cost of mouthpieces.
-adherence to mucosa.
-its limited use in procedures. -
correct answer ✅the cost of mouthpieces.
After placement of an amalgam restoration, advise the patient to
-not chew or bite on the restoration for at least 72 hours.
-not chew or bite on the restoration for 24 hours.
-use a mouth rinse twice daily for one week.
-rinse with fluoride when he or she returns home. -
correct answer ✅not chew or bite on the restoration for 24 hours.
,EFDA Practice (Restorative Functions)
Exam Questions & Answers (Grade
A+)
Which of the following procedures does NOT require the use of a
fulcrum?
-Coronal polishing
-Suctioning
-Placing a dental liner
-Removing dental cement -
correct answer ✅Suctioning
What is an example of a Class VI cavity?
-Incisal angle
-Lingual pit
-Proximal surface
-Wear facet -
correct answer ✅Wear facet
A cavity preparation involving the incisal angle is classified as
-Class IV.
-Class V.
-Class III.
, EFDA Practice (Restorative Functions)
Exam Questions & Answers (Grade
A+)
-Class VI. -
correct answer ✅Class IV
What should the operator do after adjusting the occlusal-gingival
height of a stainless steel crown?
-Smooth the rough edges of the crown.
-Adjust the occlusal circumference of the crown.
-Line the crown with a thin layer of composite resin.
-Polish the occlusal surface of the crown with pumice. -
correct answer ✅Smooth the rough edges of the crown.
The mechanical means of mixing dental alloy and mercury is known
as
-bonding.
-amalgamation.
-coupling.
-trituration. -
correct answer ✅trituration.
How long is a mechanical retraction cord left in place?
