Question 1

Which items are added to a restorative tray for a composite resin procedure?
A)Mylar matrix
B)Resin curing light
C)Gold carving knife
D)Applicator and tips
E)All of the above

Accepted Answer

A composite tray setup would contain a mouth mirror, explorer, cotton forceps, spoon excavator, composite placement instrument (plastic and titanium), composite burnisher, gold carving knife, liner applicator, three different colors of applicator brushes, mylar matrix material, resin curing light, high-volume evacuation tip, anesthetic syringes, forceps for extension rings, dental floss, and air/water syringe tip.

Question 2

Disposable composite wells should be disposed of in the regular waste.

Accepted Answer

Disposable composite wells should be disposed of in the regular waste.

Question 3

Which of the following dental materials cannot be hardened by a curing light?
A)Primer
B)Sealants
C)Composite
D)Bonding material

Accepted Answer

Primer does not react to a curing light. The curing light is used to cure bonding, composite, and sealant materials.

Question 4

Why would a composite material well have a protective cover?
A)Keep out contaminants.
B)Avoid different materials from intermixing.
C)Prevent the ambient light from setting the material.
D)All of the above

Accepted Answer

Reusable composite material wells often have an orange colored cover to prevent ambient light sources, overhead lights and the dental unit light, from prematurely setting the surface of the material.

Question 5

What item is used to help finish and smooth the interproximal surfaces of a composite restoration?
A)Scalpel and No. 12 blade
B)Half-Hollenback carver
C)Interdental file
D)Finishing strip
E)Tanner carver

Accepted Answer

The finishing strip, available in different textures and grit consistencies, is used to finish and smooth the interproximal surface of a composite restoration. The half-Hollenback carver, interdental file, Tanner carver, and scalpel are not composite instruments.

Question 6

What is the purpose of the curing light protective shield?
A)To protect the assistant's eyes
B)To protect the operator's eyes
C)To protect the patient's eyes
D)Only A and B are correct.
E)All of the above

Accepted Answer

The protective light shield on a curing light protects the operator, assistant's, and patients eyes. It does not affect the hardening or curing of the material.

Question 7

The loss of output of curing lights does not impact the amount of time needed to cure dental material.

Accepted Answer

The loss of output of curing lights does impact the amount of time needed to cure dental material, and for that reason the lights should be checked periodically.

Question 8

What instrument is used to apply conditioning, primer, and bonding material to a cavity preparation?
A)Composite placement instrument
B)Cotton-tipped applicator
C)Applicator with brush
D)Liner applicator

Accepted Answer

The applicator is used in bonding procedures, sealant application, and orthodontic band and bracket placement to apply conditioning, primer, and bonding material to a cavity preparation. A cotton-tipped applicator, composite placement instrument, and liner applicator are not appropriate instruments for this use.

Question 9

Which of the following are NOT functions of a composite placement instrument?
A)Carve composite material in cavity preparation.
B)Place composite material in cavity preparation.
C)Condense composite material for cavity preparation.
D)Adjust occlusion of composite material in cavity preparation.

Accepted Answer

The composite placement instrument is not used to adjust occlusion. It places, condenses, and carves composite material in a cavity preparation.

Question 10

Sectional matrix system bands are used for which classification of cavities?
A)Class I
B)Class II
C)Class III
D)Class IV
E)Class V

Accepted Answer

Matrix bands are designed to replace the missing proximal wall of cavity preparations for the placement of composite material or other restorative materials for class II restorations.

Question 11

What is the color of the protective shield lens that protects the dental professional's eyes during curing stage of a light-cured material?
A)Blue
B)Purple
C)Orange
D)Yellow

Accepted Answer

The light that is emitted from a curing light appears blue to the naked eye, but the color of the shield that protects the dental professional's eyes is orange.

Question 12

In order to insure a thorough cure, what is the maximum depth of each increment of composite resin?
A)2 mm
B)3 mm
C)4 mm
D)5 mm

Accepted Answer

Materials must be cured in increments of 2 mm or less to ensure complete setting.

Question 13

Light shields should be sterilized after patient use.

Accepted Answer

Light shields should be disinfected, not sterilized, according to manufacturer's directions, after each patient use.

Question 14

Finishing strips should be disposed of in a regulated waste receptacle.

Accepted Answer

Finishing strips should be disposed of in the regular waste (garbage).

Question 15

Which of the following statements is incorrect regarding testing curing lights, LED, and halogen, for effectiveness?
A)It is a recommended procedure by OSAP.
B)They can be tested with an LED and halogen radiometer.
C)A test sample of composite or sealant material can be sent to a monitoring service.
D)Loss of output of the curing light will affect the amount of time needed to cure dental materials.

Accepted Answer

Testing the visible light out for LED and halogen curing lights can be done with a radiometer, and loss of output of the curing light will affect the amount of time needed to cure dental materials. OSAP does not have stated regulations on the testing of curing lights, and monitoring services have not been established for this purpose.

Question 16

Why is there no adhesive material in the center of a finishing strip?
A)Avoid removal of tooth structure.
B)Avoid cutting the interdental papilla.
C)Avoid removal of too much composite.
D)All of the above

Accepted Answer

There is no adhesive material in the center of a finishing strip to avoid removing natural tooth structure as the strip is inserted interproximally.

Question 17

What is the purpose of a composite placement instrument?
A)Place and condense composite material in cavity preparation.
B)Carry composite material for cavity preparation.
C)Carve the composite restoration.
D)All of the above

Accepted Answer

A double-ended, contra-angled composite placement instrument is designed to carry composite material for cavity preparation, place and condense composite material in cavity preparation, and carve the composite restoration.

Question 18

Which of the following tasks would NOT require of microbrush?
A)Place bonding material in cavity preparation.
B)Place acid etch in cavity preparation.
C)Place primer in cavity preparation.
D)Place liner in cavity preparation.

Accepted Answer

The applicator is designed to handle conditioning, primer, and bonding material but not liner materials.

Question 19

The composite well is used for what type of material (or materials)?
A)Primer
B)Etchant
C)Bonding material
D)All of the above

Accepted Answer

The composite well is designed to hold etchant, primers, bonding, and composite materials. Composite wells come with a protective light cover and are available in disposable and non-disposable models.

Quiz 9: Composite Restorative Instruments

Which items are added to a restorative tray for a composite resin procedure?

Disposable composite wells should be disposed of in the regular waste.

Which of the following dental materials cannot be hardened by a curing light?

Why would a composite material well have a protective cover?

What item is used to help finish and smooth the interproximal surfaces of a composite restoration?

What is the purpose of the curing light protective shield?

The loss of output of curing lights does not impact the amount of time needed to cure dental material.

What instrument is used to apply conditioning, primer, and bonding material to a cavity preparation?

Which of the following are NOT functions of a composite placement instrument?

Sectional matrix system bands are used for which classification of cavities?

What is the color of the protective shield lens that protects the dental professional's eyes during curing stage of a light-cured material?

In order to insure a thorough cure, what is the maximum depth of each increment of composite resin?

Light shields should be sterilized after patient use.

Finishing strips should be disposed of in a regulated waste receptacle.

Which of the following statements is incorrect regarding testing curing lights, LED, and halogen, for effectiveness?

Why is there no adhesive material in the center of a finishing strip?

What is the purpose of a composite placement instrument?

Which of the following tasks would NOT require of microbrush?

The composite well is used for what type of material (or materials) ?