Question 1

Stainless steel crowns are:

Accepted Answer

A) used in cases where strength is essential. 
B) commonly used for the primary teeth. 
C) custom fabricated. 
D) both a and b. 
A) used in cases where strength is essential. 
B) commonly used for the primary teeth. 
C) custom fabricated. 
D) both a and b.

Question 2

If the liquid/powder acrylic material is being used for the provisional,how many drops of liquid are used?

Accepted Answer

A) 5 
B) 10 
C) 12 
D) Enough to wet the powder 
A) 5 
B) 10 
C) 12 
D) Enough to wet the powder

Question 3

Advantages of using pre-formed crowns for provisional coverage include:

Accepted Answer

A) reduces time required for the procedure. 
B) the pre-formed shell comes with anatomic features of natural teeth. 
C) the monomer setting time is less than 90 seconds. 
D) both a and b. 
A) reduces time required for the procedure. 
B) the pre-formed shell comes with anatomic features of natural teeth. 
C) the monomer setting time is less than 90 seconds. 
D) both a and b.

Question 4

The occlusal surface of the provisional coverage should be _____ the occlusal plane of the adjacent teeth.

Accepted Answer

A) below (infraocclusion) 
B) even with 
C) above (supraocclusion) 
D) even with or above 
A) below (infraocclusion) 
B) even with 
C) above (supraocclusion) 
D) even with or above

Question 5

Which procedure would require a patient to wear a provisional prosthesis for a longer period of time?

Accepted Answer

A) Porcelain veneers 
B) Implants or periodontal therapy 
C) Full gold cast crowns 
D) Porcelain jacket crowns 
A) Porcelain veneers 
B) Implants or periodontal therapy 
C) Full gold cast crowns 
D) Porcelain jacket crowns

Question 6

Why is it necessary to keep the preliminary alginate impression moist?

Accepted Answer

A) To reduce the chance of cross-contamination 
B) To aid in the setting time of the acrylic being used 
C) To make it easier to remove the acrylic after it is set 
D) To keep the alginate from distorting 
A) To reduce the chance of cross-contamination 
B) To aid in the setting time of the acrylic being used 
C) To make it easier to remove the acrylic after it is set 
D) To keep the alginate from distorting

Question 7

The final step after cementing the provisional coverage is:

Accepted Answer

A) removing the gingival retraction cord. 
B) taking a periapical radiograph. 
C) checking the occlusion. 
D) polishing the provisional. 
A) removing the gingival retraction cord. 
B) taking a periapical radiograph. 
C) checking the occlusion. 
D) polishing the provisional.

Question 8

When using a thermoplastic tray to fabricate a custom provisional,the tray is made:

Accepted Answer

A) before the dentist prepares the teeth. 
B) after the dentist prepares the teeth. 
C) anytime during the preparation appointment. 
D) after the final impression is made. 
A) before the dentist prepares the teeth. 
B) after the dentist prepares the teeth. 
C) anytime during the preparation appointment. 
D) after the final impression is made.

Question 9

Pre-formed polycarbonate crowns:

Accepted Answer

A) are stock crowns and come in a limited selection of size, shape, and shades. 
B) are thin and not esthetically pleasing. 
C) can be used as a mold to fabricate a custom provisional. 
D) both a and c. 
A) are stock crowns and come in a limited selection of size, shape, and shades. 
B) are thin and not esthetically pleasing. 
C) can be used as a mold to fabricate a custom provisional. 
D) both a and c.

Question 10

The purpose of provisional coverage is to:

Accepted Answer

A) restore function to the area of the mouth. 
B) keep the patient comfortable. 
C) maintain function to the area of the mouth. 
D) all of the above. 
A) restore function to the area of the mouth. 
B) keep the patient comfortable. 
C) maintain function to the area of the mouth. 
D) all of the above.

Question 11

A disadvantage of using custom provisional coverage is that is:

Accepted Answer

A) can only be used for anterior teeth. 
B) can be the most time-consuming to make. 
C) is hard to fit the prepared tooth. 
D) does not look natural. 
A) can only be used for anterior teeth. 
B) can be the most time-consuming to make. 
C) is hard to fit the prepared tooth. 
D) does not look natural.

Question 12

The provisional should _____ below the margin of the preparation.

Accepted Answer

A) not extend 
B) extend one to three mm 
C) extend four to six mm 
D) extend six to eight mm 
A) not extend 
B) extend one to three mm 
C) extend four to six mm 
D) extend six to eight mm

Question 13

Which statement is NOT true of prefabricated crowns?

Accepted Answer

A) The crowns are supplied in many types of materials, depending on the location of the provisional. 
B) Prefabricated crowns can be used for posterior and anterior preparations. 
C) The crowns are available for bridges as well as for single units. 
D) Prefabricated crowns can be shaped to match adjacent teeth. 
A) The crowns are supplied in many types of materials, depending on the location of the provisional. 
B) Prefabricated crowns can be used for posterior and anterior preparations. 
C) The crowns are available for bridges as well as for single units. 
D) Prefabricated crowns can be shaped to match adjacent teeth.

Exam 51: Provisional Coverage

Stainless steel crowns are:

If the liquid/powder acrylic material is being used for the provisional,how many drops of liquid are used?

Advantages of using pre-formed crowns for provisional coverage include:

The occlusal surface of the provisional coverage should be _____ the occlusal plane of the adjacent teeth.

Which procedure would require a patient to wear a provisional prosthesis for a longer period of time?

Why is it necessary to keep the preliminary alginate impression moist?

The final step after cementing the provisional coverage is:

When using a thermoplastic tray to fabricate a custom provisional,the tray is made:

Pre-formed polycarbonate crowns:

The purpose of provisional coverage is to:

A disadvantage of using custom provisional coverage is that is:

The provisional should _____ below the margin of the preparation.

Which statement is NOT true of prefabricated crowns?

History of Dentistry

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