Question 1

Which condition below would not require a preformed crown to be used?

Accepted Answer

A)  Anterior crown prep 
B)  Posterior crown prep 
C)  Fractured anterior tooth 
D)  Three-unit posterior bridge prep 
A)  Anterior crown prep 
B)  Posterior crown prep 
C)  Fractured anterior tooth 
D)  Three-unit posterior bridge prep D

Question 2

If the surfaces of a provisional restoration are _____,the process of chewing will excessively force food directly into the gingiva.An _____ restoration may trap plaque by not allowing for any self-cleansing or gingival stimulation from the chewing process.

Accepted Answer

A)  overcontoured;overcontoured 
B)  overcontoured;undercontoured 
C)  undercontoured;overcontoured 
D)  undercontoured;undercontoured 
A)  overcontoured;overcontoured 
B)  overcontoured;undercontoured 
C)  undercontoured;overcontoured 
D)  undercontoured;undercontoured C

Question 3

Which of the following is true concerning patient education for provisional coverage?

Accepted Answer

A)  Provisional coverage provides the same results as permanent coverage. 
B)  The patient need not call the office if the provisional is dislodged or lost. 
C)  No increase in temperature sensitivity is associated with the provisional material. 
D)  Limitations in esthetics may include imperfections in color matching,anatomic contour,and smoothness. 
A)  Provisional coverage provides the same results as permanent coverage. 
B)  The patient need not call the office if the provisional is dislodged or lost. 
C)  No increase in temperature sensitivity is associated with the provisional material. 
D)  Limitations in esthetics may include imperfections in color matching,anatomic contour,and smoothness. D

Question 4

What home care instructions would be given to a patient with a provisional restoration?

Accepted Answer

A)  Do not brush or floss the restoration. 
B)  Brush but do not floss the restoration. 
C)  Brush and floss the restoration as you would any other tooth. 
D)  Brush and floss the restoration,sliding the floss through the cervical embrasure. 
A)  Do not brush or floss the restoration. 
B)  Brush but do not floss the restoration. 
C)  Brush and floss the restoration as you would any other tooth. 
D)  Brush and floss the restoration,sliding the floss through the cervical embrasure.

Question 5

Match the items with the correct description below.
-Intracoronal restoration

Accepted Answer

A) The continuous margin that borders the preparation to which the restoration is fit or finished 
B) A restoration that covers all or part of the external surface of the tooth and may extend over the cusp tips on facial or lingual surfaces or include the removal of cusps 
C) Provisional restoration made on a cast outside the patient's mouth 
D) A restoration within the crown of the tooth,such as an inlay 
E) Provisional restoration made directly inside the patient's mouth 
A) The continuous margin that borders the preparation to which the restoration is fit or finished 
B) A restoration that covers all or part of the external surface of the tooth and may extend over the cusp tips on facial or lingual surfaces or include the removal of cusps 
C) Provisional restoration made on a cast outside the patient's mouth 
D) A restoration within the crown of the tooth,such as an inlay 
E) Provisional restoration made directly inside the patient's mouth

Question 6

An example of a procedure requiring an intracoronal provisional restoration would be:

Accepted Answer

A)  crown prep. 
B)  bridge prep. 
C)  inlay prep. 
D)  implant. 
A)  crown prep. 
B)  bridge prep. 
C)  inlay prep. 
D)  implant.

Question 7

What are preformed celluloid forms and polymer crowns filled with?

Accepted Answer

A)  Acrylic or BIS-acrylic composite 
B)  Zinc oxide eugenol cement 
C)  Gutta percha 
D)  Resin cement 
A)  Acrylic or BIS-acrylic composite 
B)  Zinc oxide eugenol cement 
C)  Gutta percha 
D)  Resin cement

Question 8

Which of the following is true of the direct technique for provisional coverage?

Accepted Answer

A)  An impression of the area is made and poured in stone;the template is then made on this model. 
B)  The provisional is fabricated on a model and then relined before it is placed on the preparation. 
C)  A template of the tooth before preparation is obtained using wax or an impression material directly in the mouth. 
D)  The direct technique allows for superior access and enhances the time and convenience of making multi-unit bridges or crowns in difficult-to-access areas. 
A)  An impression of the area is made and poured in stone;the template is then made on this model. 
B)  The provisional is fabricated on a model and then relined before it is placed on the preparation. 
C)  A template of the tooth before preparation is obtained using wax or an impression material directly in the mouth. 
D)  The direct technique allows for superior access and enhances the time and convenience of making multi-unit bridges or crowns in difficult-to-access areas.

Question 9

Which of the following is the most common choice of matrix or template material for multi-unit and indirect provisional techniques?

Accepted Answer

A)  Thermoplastic wax 
B)  Silicone impression materials 
C)  Alginate 
D)  Vacuum-formed plastic 
A)  Thermoplastic wax 
B)  Silicone impression materials 
C)  Alginate 
D)  Vacuum-formed plastic

Question 10

Why must care be taken in the fabrication of provisionals by utilizing acrylic materials to "pump" the template on and off the preparation after initial polymerization?

Accepted Answer

A)  Accelerate the set of the material 
B)  Seal off the exposed dentinal tubules on the tooth 
C)  Prevent them from locking on the tooth 
D)  Open proximal contacts 
A)  Accelerate the set of the material 
B)  Seal off the exposed dentinal tubules on the tooth 
C)  Prevent them from locking on the tooth 
D)  Open proximal contacts

Question 11

Which of the following are advantages of composite provisional materials in contrast to acrylic provisional materials?
1)High shrinkage during curing
2)High heat release during curing
3)More wear
4)Biocompatibility

Accepted Answer

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

Question 12

How long would it take a prepared tooth without occlusal/incisal and proximal contact to migrate laterally or occlusally/incisally?

Accepted Answer

A)  Days 
B)  Weeks 
C)  Months 
D)  Years 
A)  Days 
B)  Weeks 
C)  Months 
D)  Years

Question 13

Match the items with the correct description below.
-Indirect fabrication

Accepted Answer

A) The continuous margin that borders the preparation to which the restoration is fit or finished 
B) A restoration that covers all or part of the external surface of the tooth and may extend over the cusp tips on facial or lingual surfaces or include the removal of cusps 
C) Provisional restoration made on a cast outside the patient's mouth 
D) A restoration within the crown of the tooth,such as an inlay 
E) Provisional restoration made directly inside the patient's mouth 
A) The continuous margin that borders the preparation to which the restoration is fit or finished 
B) A restoration that covers all or part of the external surface of the tooth and may extend over the cusp tips on facial or lingual surfaces or include the removal of cusps 
C) Provisional restoration made on a cast outside the patient's mouth 
D) A restoration within the crown of the tooth,such as an inlay 
E) Provisional restoration made directly inside the patient's mouth

Question 14

Provisional restorations are recommended only for 2 to 3:

Accepted Answer

A)  days 
B)  weeks 
C)  months 
D)  There is no time limit. 
A)  days 
B)  weeks 
C)  months 
D)  There is no time limit.

Question 15

Accurate margins of an extracoronal provisional restoration are important because they:

Accepted Answer

A)  maintain accurate contour. 
B)  protect the tooth from microleakage. 
C)  keep food from packing into the embrasure. 
D)  maintain occlusion and prevent supereruption. 
A)  maintain accurate contour. 
B)  protect the tooth from microleakage. 
C)  keep food from packing into the embrasure. 
D)  maintain occlusion and prevent supereruption.

Question 16

Zinc oxide provisionals should not be used if a permanent restoration is to be cemented with a _____ luting agent.

Accepted Answer

A)  resin 
B)  glass ionomer 
C)  zinc phosphate 
D)  zinc polycarboxylate 
A)  resin 
B)  glass ionomer 
C)  zinc phosphate 
D)  zinc polycarboxylate

Question 17

Match the items with the correct description below.
-Direct fabrication

Accepted Answer

A) The continuous margin that borders the preparation to which the restoration is fit or finished 
B) A restoration that covers all or part of the external surface of the tooth and may extend over the cusp tips on facial or lingual surfaces or include the removal of cusps 
C) Provisional restoration made on a cast outside the patient's mouth 
D) A restoration within the crown of the tooth,such as an inlay 
E) Provisional restoration made directly inside the patient's mouth 
A) The continuous margin that borders the preparation to which the restoration is fit or finished 
B) A restoration that covers all or part of the external surface of the tooth and may extend over the cusp tips on facial or lingual surfaces or include the removal of cusps 
C) Provisional restoration made on a cast outside the patient's mouth 
D) A restoration within the crown of the tooth,such as an inlay 
E) Provisional restoration made directly inside the patient's mouth

Question 18

Which of the following would not make a good extracoronal provisional restoration?

Accepted Answer

A)  Polycarbonate crown 
B)  Aluminum shell 
C)  Stainless steel crown 
D)  Zinc oxide eugenol cement 
A)  Polycarbonate crown 
B)  Aluminum shell 
C)  Stainless steel crown 
D)  Zinc oxide eugenol cement

Question 19

What is the most common use of a stainless steel crown?

Accepted Answer

A)  Crown prep on an adult molar 
B)  Crown prep on a primary molar 
C)  Crown prep on an anterior tooth 
D)  Bridge prep in the adult posterior teeth 
A)  Crown prep on an adult molar 
B)  Crown prep on a primary molar 
C)  Crown prep on an anterior tooth 
D)  Bridge prep in the adult posterior teeth

Question 20

Which of the following is true of preformed polycarbonate provisional crowns?

Accepted Answer

A)  They are incompatible with acrylic resins. 
B)  Like metal,they are flexible and may be crimped with contouring pliers. 
C)  The primary advantage is their esthetics for replacement of anterior teeth. 
D)  Unlike their metal partners,they do not come in several sizes and shapes. 
A)  They are incompatible with acrylic resins. 
B)  Like metal,they are flexible and may be crimped with contouring pliers. 
C)  The primary advantage is their esthetics for replacement of anterior teeth. 
D)  Unlike their metal partners,they do not come in several sizes and shapes.

Which condition below would not require a preformed crown to be used?

If the surfaces of a provisional restoration are _,the process of chewing will excessively force food directly into the gingiva.An _ restoration may trap plaque by not allowing for any self-cleansing or gingival stimulation from the chewing process.

Which of the following is true concerning patient education for provisional coverage?

What home care instructions would be given to a patient with a provisional restoration?

Match the items with the correct description below. -Intracoronal restoration

An example of a procedure requiring an intracoronal provisional restoration would be:

What are preformed celluloid forms and polymer crowns filled with?

Which of the following is true of the direct technique for provisional coverage?

Which of the following is the most common choice of matrix or template material for multi-unit and indirect provisional techniques?

Why must care be taken in the fabrication of provisionals by utilizing acrylic materials to "pump" the template on and off the preparation after initial polymerization?

Which of the following are advantages of composite provisional materials in contrast to acrylic provisional materials? 1)High shrinkage during curing 2)High heat release during curing 3)More wear 4)Biocompatibility

How long would it take a prepared tooth without occlusal/incisal and proximal contact to migrate laterally or occlusally/incisally?

Match the items with the correct description below. -Indirect fabrication

Provisional restorations are recommended only for 2 to 3:

Accurate margins of an extracoronal provisional restoration are important because they:

Zinc oxide provisionals should not be used if a permanent restoration is to be cemented with a _____ luting agent.

Match the items with the correct description below. -Direct fabrication

Which of the following would not make a good extracoronal provisional restoration?

What is the most common use of a stainless steel crown?

Which of the following is true of preformed polycarbonate provisional crowns?

Introduction to Dental Materials

Oral Environment and Patient Considerations

Physical and Mechanical Properties of Dental Materials

General Handling and Safety of Dental Materials in the Dental Office

Principles of Bonding

Composites, glass Ionomers, and Compomers

Preventive and Desensitizing Materials

Teeth Whitening Materials and Procedures

Dental Ceramics

Dental Amalgam

Casting Metals, solders, and Wrought Metal Alloys

Dental Implants

Abrasion, finishing, and Polishing

Dental Cement

Impression Materials

Gypsum and Wax Products

Polymers for Prosthetic Dentistry

Preventive and Corrective Oral Appliances

Filters

Exam 18: Provisional Restorations

Which condition below would not require a preformed crown to be used?

If the surfaces of a provisional restoration are _____,the process of chewing will excessively force food directly into the gingiva.An _____ restoration may trap plaque by not allowing for any self-cleansing or gingival stimulation from the chewing process.

Which of the following is true concerning patient education for provisional coverage?

What home care instructions would be given to a patient with a provisional restoration?

Match the items with the correct description below. -Intracoronal restoration

An example of a procedure requiring an intracoronal provisional restoration would be:

What are preformed celluloid forms and polymer crowns filled with?

Which of the following is true of the direct technique for provisional coverage?

Which of the following is the most common choice of matrix or template material for multi-unit and indirect provisional techniques?

Why must care be taken in the fabrication of provisionals by utilizing acrylic materials to "pump" the template on and off the preparation after initial polymerization?

Which of the following are advantages of composite provisional materials in contrast to acrylic provisional materials? 1)High shrinkage during curing 2)High heat release during curing 3)More wear 4)Biocompatibility

How long would it take a prepared tooth without occlusal/incisal and proximal contact to migrate laterally or occlusally/incisally?

Match the items with the correct description below. -Indirect fabrication

Provisional restorations are recommended only for 2 to 3:

Accurate margins of an extracoronal provisional restoration are important because they:

Zinc oxide provisionals should not be used if a permanent restoration is to be cemented with a _____ luting agent.

Match the items with the correct description below. -Direct fabrication

Which of the following would not make a good extracoronal provisional restoration?

What is the most common use of a stainless steel crown?

Which of the following is true of preformed polycarbonate provisional crowns?

Introduction to Dental Materials

Oral Environment and Patient Considerations

Physical and Mechanical Properties of Dental Materials

General Handling and Safety of Dental Materials in the Dental Office

Principles of Bonding

Composites, glass Ionomers, and Compomers

Preventive and Desensitizing Materials

Teeth Whitening Materials and Procedures

Dental Ceramics

Dental Amalgam

Casting Metals, solders, and Wrought Metal Alloys

Dental Implants

Abrasion, finishing, and Polishing

Dental Cement

Impression Materials

Gypsum and Wax Products

Polymers for Prosthetic Dentistry

Preventive and Corrective Oral Appliances

Filters

If the surfaces of a provisional restoration are _,the process of chewing will excessively force food directly into the gingiva.An _ restoration may trap plaque by not allowing for any self-cleansing or gingival stimulation from the chewing process.