Deck 37: Dental Cements Bases Liners and Bonding Agents

Question 1

The IRM material can be placed in the patient's mouth and will last up to 1 year.

Answer 1

True

Question 2

ZOE Type I is mixed on a glass slab in order to control setting time.

Answer 2

True

Question 3

The average biting force in the anterior region is about ____ pounds.

A) 40
B) 100
C) 150
D) 200

Answer 3

40

Question 4

Compomer cements are basically poly-acid modified composites and are used to cement all types of dental restorations.

Question 5

The universal varnish does not have the organic solvent and may be used under all restorations.

Question 6

Liners are often called low-strength bases.

Question 7

When the reading level is high on the laser that measures fluorescence levels within the tooth structure, it indicates there are no caries.

Question 8

A type of stress and strain that slides one part of a material parallel to another part is ____________.

A) tensile
B) compressive
C) shearing
D) none of the above

Question 9

A type of stress and strain that compresses a material is ____________.

A) tensile
B) compressive
C) shearing
D) none of the above

Question 10

The cavity liner placement is to cover the entire cavity preparation.

Question 11

When two different metals are present in the mouth, there is potential for the creation of small electrical shocks known as galvanism.

Question 12

When curing lights are used, reflective shields must be used to protect the operator's and assistant's eyes.

Question 13

Type II zinc oxide eugenol cement is not as strong as Type I.

Question 14

Copal varnishes are placed under composite restorations, not amalgam restorations.

Question 15

Most materials that are supplied in a two-paste system are dispensed in equal lengths.

Question 16

Resin-modified glass ionomer cement is modified by including zinc polycarboxylate with the traditional glass ionomer.

Question 17

Calcium chloride can provide a mild irritant that is necessary for secondary dentin to form.

Question 18

Cavity varnish is used under amalgam restorations to prevent microleakage.

Question 19

Mixing glass ionomer on a glass slab will increase the setting time.

Question 20

The average biting force in the posterior region is about ____ pounds.

A) 40
B) 100
C) 150
D) 200

Question 21

Which material is never used under a composite or an acrylic restoration?

A) Zinc phosphate
B) Glass ionomer
C) Calcium hydroxide
D) ZOE

Question 22

During mixing, which cement is the most technique sensitive?

A) Zinc phosphate
B) Zinc oxide eugenol
C) Glass ionomer
D) Polycarboxylate

Question 23

A chemical attack on pure metals or amalgam is ____________.

A) tarnish
B) corrosion
C) both a and b
D) neither a nor b

Question 24

Which cement is very acidic and requires the tooth to be protected with liners or varnishes before the cement is placed?

A) Zinc phosphate
B) Zinc oxide eugenol
C) Glass ionomer
D) Polycarboxylate

Question 25

Which cement will "cobweb" if the working time has expired?

A) ZOE
B) Resin
C) Polycarboxylate
D) Zinc phosphate

Question 26

Luting has the same meaning as ____________.

A) cementing
B) curing
C) setting up
D) none of the above

Question 27

Which cement contains fluoride?

A) Polycarboxylate
B) ZOE
C) Glass ionomer
D) Zinc phosphate

Question 28

A material placed in a thin layer on the walls and floor of the cavity prep is ____________.

A) luting agent
B) low-strength base or liner
C) varnish
D) high-strength base

Question 29

An intermediate restorative material (IRM) will last up to ____ months in the patient's mouth.

A) 2
B) 6
C) 12
D) Indefinitely

Question 30

A material that is placed in a thin layer to seal the wall and floor of the cavity prep is ____________.

A) luting agent
B) low-strength base or liner
C) varnish
D) high-strength base

Question 31

Restorative materials such as amalgam and composites are held in place in the tooth by ____________.

A) cementing agents
B) mechanical retention
C) chemical retention
D) none of the above

Question 32

Which cement has a soothing, palliative effect on the tooth?

A) Zinc phosphate
B) Zinc oxide eugenol
C) Glass ionomer
D) Polycarboxylate

Question 33

When dispensing the liquid for a cement, hold the bottle or dispenser __________ to the mixing pad or glass slab.

A) parallel
B) vertical
C) horizontal
D) It does not matter.

Question 34

A surface discoloration on pure metals or amalgam is ____________.

A) tarnish
B) corrosion
C) both a and b
D) neither a nor b

Question 35

Which two cements use chemical bonding for retention?

A) ZOE and zinc phosphate
B) Glass ionomer and ZOE
C) Glass ionomer and polycarboxylate
D) Polycarboxylate and zinc phosphate

Question 36

Electrical currents are created when two different metals come in contact, creating what is known as ____________.

A) flow
B) microleakage
C) galvanism
D) none of the above

Question 37

The modulus of elasticity measures the __________ of a material.

A) hardness
B) stiffness
C) elasticity
D) flexibility

Question 38

A type of stress and strain that pulls and stretches a material is

A) tensile
B) compressive
C) shearing
D) none of the above

Question 39

To test for the proper luting consistency, the cement will follow the spatula how far before breaking and flowing back into the mass?

A) It will not follow the spatula at all.
B) 1/2 inch to 1 inch
C) 2 inches
D) It will follow and remain in stiff peaks.

Question 40

A material placed in a thick layer between the tooth and the restoration that supports the restorative material from occlusal stresses is ____________.

A) luting agent
B) low-strength base or liner
C) varnish
D) high-strength base

Question 41

The layer of debris formed after dentin is cut with a bur is known as the ____________.

A) smear layer
B) dentinal tubules
C) both a and b
D) neither a nor b

Question 42

Manipulation of the dental cements are specific to the manufacturers' directions. Which of the following is the working time for polycarboxylate?

A) 1 minute
B) 3 minutes
C) 2 minutes
D) None of the above

Question 43

__________ is used under an amalgam restoration to prevent microleakage.

A) Cement base
B) Cavity varnish
C) Cavity liner
D) Bonding agent

Question 44

The wall that overlies the pulp is the ____________.

A) wall
B) floor
C) line angle
D) point angle

Question 45

Place the steps of a composite procedure in order.
1) Cavity prep
2) Select shade
3) Place etching agent
4) Place bonding agent
5) Finishing/polishing
6) Place composite material

A) 1, 2, 3, 4, 5, 6
B) 1, 3, 4, 2, 6, 5
C) 2, 1, 3, 4, 6, 5
D) 2, 1, 4, 3, 6, 5

Question 46

The __________ designates the overall shape of the cavity preparation.

A) wall
B) line angle
C) outline form
D) retention form

Question 47

Which material will promote secondary dentin to form?

A) Eugenol
B) Glass ionomer
C) Calcium hydroxide
D) None of the above

Question 48

Three surfaces meet and form a ____________.

A) wall
B) floor
C) line angle
D) point angle

Question 49

__________ materials are used to improve the retention between the tooth structure and the restoration.

A) Bonding agent
B) Adhesives
C) Bonding resins
D) All of the above

Question 50

Placing restorations is also known as __________ dentistry.

A) operative
B) operating
C) restorative
D) Both a and c

Question 51

In preparing the tooth to receive a restoration, the __________ is the side of the prep.

A) wall
B) floor
C) line angle
D) point angle

Question 52

Composites are mainly packaged as a one-paste system and are ____________.

A) self cured
B) auto cured
C) light cured
D) none of the above

Question 53

Glass ionomers are best suited for which cavity classification?

A) I
B) II
C) IV
D) V

Question 54

A(n) __________ instrument is used to place a cavity liner.

A) small, ball-shaped
B) explorer
C) excavator
D) both a and b

Question 55

The spraying and rinsing of the cavity prep is the ____________.

A) debridement
B) finishing
C) refinement
D) convenience form

Question 56

__________ varnish contains organic solvents and is used only under metal restorations.

A) Copal
B) Universal
C) Both a and b
D) None of the above

Question 57

The liner is light cured; the time to cure the material is for __________ seconds.

A) 20 to 25
B) 5 to 10
C) 10 to 20
D) 30

Question 58

Enamel is acid etched with which type of acid?

A) Phosphoric
B) Hydrochloric
C) Acrylic
D) None of the above

Question 59

Two surfaces meet and form a ____________.

A) wall
B) floor
C) line angle
D) point angle

Question 60

The ability of a material to withstand forces of tensile stress without failing is known as ____________.

A) biting force
B) stress
C) ductility
D) shearing

Question 64

The cavity preparation that involves a large amount of enamel and dentin being removed and the floor of the preparation being slightly pink is ____________.

A) pulp exposure
B) near exposure
C) ideal
D) beyond ideal

Question 65

The treatment of choice for an exposed pulp cavity preparation is ____________.

A) direct pulp capping
B) indirect pulp capping
C) placement of ZOE base
D) placement of a varnish

Question 66

Which material is mixed to a thick putty consistency and placed in the cavity preparation?

A) Liners
B) High-strength bases
C) Cement bases
D) Both b and c

Question 67

The __________ level of the cavity preparations does not involve the pulp but is through the enamel and just in the dentin.

A) ideal
B) beyond
C) near exposure
D) pulp exposure

Question 69

Etchants are used before the placement of ____________.

A) bonding agents
B) restorative materials
C) dental cements
D) all of the above

Question 70

What seals the dentin tubules?

A) Varnishes
B) Low-strength bases
C) Liners
D) High-strength bases

Question 71

Which of the following are often referred to as high-strength bases?

A) Glass ionomers
B) Zinc phosphate
C) Polycarboxylate
D) All of the above

Question 72

Two coats are needed for which material?

A) Varnishes
B) Low-strength bases
C) Liners
D) High-strength bases

Question 73

__________ are placed on the dentin, protect the pulp from chemical irritations, and provide a therapeutic effect.

A) Varnishes
B) Low-strength bases
C) Liners
D) Both b and c

Question 74

The __________ exposure involves a large amount of enamel and dentin to be removed, but the pulp is not exposed although a slight pink may be seen.

A) pulp
B) near
C) beyond ideal
D) none of the above