Deck 36: Restorative Therapy

Question 1

What steps are used to correctly remove a rubber dam?

A) Remove the retainer and ligature,cut the septa between the teeth,and remove the dam.
B) Remove the ligature,cut the septa between the teeth,remove the retainer,and remove the dam.
C) Remove the ligature,ease the dam off of each tooth,and remove the retainer.
D) Remove the retainer and ligature,cut the septa between the teeth,and inspect the dam.
E) Remove the retainer and ligature,cut the septa between the teeth,remove the dam,and inspect the dam.

Answer 1

Remove the retainer and ligature,cut the septa between the teeth,remove the dam,and inspect the dam.

Question 2

What does condensation mean in the context of restorative therapies?

A) It is the uncured layer of resin-based composite.
B) It is the process of applying pressure to pack an amalgam into the cavity preparation.
C) It is the reaction that takes place when glass ionomer cures.
D) It is the moisture that appears on the surface of a stainless steel crown when the cement is curing.
E) None of the above are correct.

Answer 2

It is the process of applying pressure to pack an amalgam into the cavity preparation.

Question 3

Resin-based composites are held in a cavity preparation by bonding.What is the difference between micromechanical bonding and hybridization bonding?

A) Micromechanical bonding is between the enamel and the resin.
B) Hybridization bonding is between the dentin and the resin.
C) Etching the enamel produces the ability to bond micromechanically.
D) Hybridization bonding is more difficult to achieve.
E) All of the above are differences.

Answer 3

All of the above are differences.

Question 4

What procedure is done to keep a rubber dam retainer in place during restorative dental therapy?

A) Use the winged variety of retainer.
B) Use a ligature.
C) Place four prongs of the retainer on the tooth.
D) Rest the bow of the retainer on the occlusal surface of the anchor tooth.

Question 5

A proper amalgam mix should have which of the following characteristics?

A) Shiny
B) Crumbly
C) Firm
D) Soft
E) Both shiny and soft

Question 6

Use Black's classification system to classify a restoration placed on tooth 7 that restores both the incisal and the mesial surfaces.

A) Class I
B) Class II
C) Class III
D) Class IV
E) Class V

Question 7

Use Black's classification system to classify a restoration placed on tooth 4 that restores both the occlusal and the mesial surfaces.

A) Class I
B) Class II
C) Class III
D) Class IV
E) Class V

Question 8

Resin-based composites provide excellent esthetics,but they should not be used in posterior teeth.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement is false,but the second statement is true.

Question 9

Which of the following restorative dental materials has the greatest longevity for Class II restorations in permanent teeth?

A) Amalgam
B) Resin-based composite
C) Resin-modified glass ionomer
D) Stainless steel crowns

Question 10

Which is the best dental material to use as a base under a metallic dental restoration?

A) Zinc phosphate cement
B) Zinc oxide cement
C) Resin-based composite
D) Glass ionomer cement
E) Silicate cement

Question 11

What is the best restorative procedure for teeth E and F?

A) Extraction
B) Resin-modified glass ionomer restorations
C) Stainless steel crowns
D) Amalgam restorations
E) Resin-based composite restorations

Question 12

Use Black's classification system to classify a restoration placed on the gingival third of the lingual surface of tooth 29.

A) Class I
B) Class II
C) Class III
D) Class IV
E) Class V

Question 13

Which of the following is not an indication for use of resin-modified glass ionomer?

A) Class V abrasion lesions
B) Class III cavity preparations
C) Atraumatic restorative therapy (ART)
D) Class II cavity preparations in primary teeth
E) As a cement for stainless steel crowns

Question 14

What is the best restorative procedure to treat teeth K,L,S,and T?

A) Extraction
B) Resin-modified glass ionomer restorations
C) Stainless steel crowns
D) Amalgam restorations
E) Resin-based composite restorations

Question 15

In restorative dental therapy,what is the purpose of a retraction cord?

A) To minimize bleeding
B) To relax the sulcular tissue
C) To allow the operator to make an accurate impression
D) To keep the gingival tissues away from the restorative preparation
E) All of the above

Question 16

All of the following are functions of a matrix band except which one?

A) To keep the restorative material confined to the Class I cavity preparation
B) To provide a framework for the missing part of the tooth
C) To prevent amalgam overhangs
D) To support the establishment of a proximal contact

Question 17

All of the following are direct restorations except which one?

A) Gold foils
B) Amalgams
C) Resin-modified glass ionomers
D) CAD/CAM inlay restorations
E) Stainless steel crowns

Question 18

Restorative expanded function dental hygienists can remove carious lesions and place restorations.All dental hygienists who are certified in restorative functions must provide restorative therapies under direct supervision of a dentist as specified in the law.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement is false,but the second statement is true.

Question 19

ART (atraumatic restorative therapy)provides restorative treatment for those with little access to care.It is of lower cost because it is a temporary dental restoration.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement is false,but the second statement is true.

Question 20

Proper mercury hygiene must be practiced when dental amalgam is used.Which of the following best exemplifies good mercury hygiene?

A) Do not use amalgam.
B) Suction all amalgam out of the mouth where it is stored in the trap.
C) Save the scrap amalgam for reuse.
D) Heat the amalgam carrier to ensure all amalgam has been removed.
E) Store scrap amalgam in a covered container.

Question 21

What causes an overhang on an amalgam restoration?

A) Amalgam creep
B) Moisture contamination
C) Using a wedge that is too big
D) An improperly adapted matrix band
E) Not using a matrix band for a Class I preparation

Question 22

In restorative dental therapy,what are crimping pliers used for?

A) To remove a rubber dam
B) To adjust the occlusion for glass ionomer restorations
C) To adapt stainless steel crowns to fit properly
D) To remove stainless steel crowns before they are cemented
E) To trim the matrix band

Question 23

Which of the following temporary restorative dental materials is most durable?

A) Reinforced zinc oxide eugenol
B) Temporary stopping
C) Resin-based composite
D) Zinc phosphate cement
E) Silicate cement

Question 24

How are plastic instruments used in restorative dental therapy?

A) To place resin-based composite restorations
B) Used only on implants
C) To place amalgam restorations
D) To adapt an anterior matrix band

Question 25

When using the Tofflemire matrix band retainer,the larger nut locks the band in place and the smaller nut adjusts the size of the band.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement is false,but the second statement is true.