Question 1

The cervical margins of the provisional should have no more than ___ mm of space between the crown margin and the finish line of the preparation.

Accepted Answer

A) 1.0 
B) 0.1 
C) 0.5 
D) 0.10 
A) 1.0 
B) 0.1 
C) 0.5 
D) 0.10 C

Question 2

Why is the provisional placed on the tooth in the patient's mouth for the final curing stage?

Accepted Answer

A) To ensure the color and shape of the provisional match the tooth 
B) To ensure the provisional is in correct occlusion 
C) To avoid excess shrinkage of the provisional during the final curing stage 
D) To check the margins for accuracy before curing 
A) To ensure the color and shape of the provisional match the tooth 
B) To ensure the provisional is in correct occlusion 
C) To avoid excess shrinkage of the provisional during the final curing stage 
D) To check the margins for accuracy before curing C

Question 3

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 D

Question 4

Which provisional,preformed crowns are used on anterior teeth,when appearance is important?

Accepted Answer

A) Aluminum 
B) Polycarbonate 
C) Stainless steel 
D) Nickel-chromium 
A) Aluminum 
B) Polycarbonate 
C) Stainless steel 
D) Nickel-chromium

Question 5

Once the acrylic-loaded impression is on the prepared tooth,it should remain on the tooth for approximately how long?

Accepted Answer

A) 1 to 2 minutes 
B) 3 minutes 
C) 90 seconds 
D) 4 to 5 minutes 
A) 1 to 2 minutes 
B) 3 minutes 
C) 90 seconds 
D) 4 to 5 minutes

Question 6

When would a stainless steel crown be used for provisional coverage?

Accepted Answer

A) When strength is essential 
B) Commonly for the primary teeth. 
C) For custom fabrication 
D) Both a and b 
A) When strength is essential 
B) Commonly for the primary teeth. 
C) For custom fabrication 
D) Both a and b

Question 7

Which statement is correct regarding preformed polycarbonate crowns?

Accepted Answer

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

Question 8

What is one disadvantage of using custom provisional coverage?

Accepted Answer

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

Question 9

Which of the following is appropriate patient home-care instruction for someone with provisional coverage?

Accepted Answer

A) "Pop" the floss out of the contact. 
B) Pull floss through the contact, either to the facial or lingual side, once floss is placed below the contact. 
C) Have the provisional coverage recemented or replaced if it becomes loose or is lost. 
D) Leave the provisional coverage out of the mouth until the final restoration is cemented if it becomes loose or is lost. 
A) "Pop" the floss out of the contact. 
B) Pull floss through the contact, either to the facial or lingual side, once floss is placed below the contact. 
C) Have the provisional coverage recemented or replaced if it becomes loose or is lost. 
D) Leave the provisional coverage out of the mouth until the final restoration is cemented if it becomes loose or is lost.

Question 10

Which provisional uses a polymer shell filled with a hybrid composite resin that bonds with the preformed crown and tooth?

Accepted Answer

A) Stainless steel 
B) Custom provisional 
C) Polycarbonate 
D) Preformed polymer 
A) Stainless steel 
B) Custom provisional 
C) Polycarbonate 
D) Preformed polymer

Question 11

Which statement is a contraindication for provisional coverage?

Accepted Answer

A) Maintain the function of the prepared tooth. 
B) Prevent shifting of opposing teeth. 
C) Keep the patient comfortable while the prosthesis is being made. 
D) Cover the facial of a veneer preparation. 
A) Maintain the function of the prepared tooth. 
B) Prevent shifting of opposing teeth. 
C) Keep the patient comfortable while the prosthesis is being made. 
D) Cover the facial of a veneer preparation.

Question 12

Of the materials listed,which one is used most commonly for custom provisional coverage?

Accepted Answer

A) Self-curing acrylic resin 
B) Light-cured composite resin 
C) Polycarbonate shells 
D) Alginate 
A) Self-curing acrylic resin 
B) Light-cured composite resin 
C) Polycarbonate shells 
D) Alginate

Question 13

What instructions are given regarding home care instructions for a patient with provisional coverage?

Accepted Answer

A) Avoid chewing on the provisional. 
B) Brush carefully and avoid flossing, because it could pop the provisional off. 
C) If the provisional comes off, contact the office immediately so it can be put back on. 
D) No special home care instructions are required. 
A) Avoid chewing on the provisional. 
B) Brush carefully and avoid flossing, because it could pop the provisional off. 
C) If the provisional comes off, contact the office immediately so it can be put back on. 
D) No special home care instructions are required.

Question 14

The two types of provisional coverage include _____ and _____.

Accepted Answer

A) direct; indirect 
B) functional; esthetical 
C) custom; prefabricated 
D) polymer; monomer 
A) direct; indirect 
B) functional; esthetical 
C) custom; prefabricated 
D) polymer; monomer

Question 15

What could occur when fabricating a provisional if undercuts are present on proximal surfaces?

Accepted Answer

A) Inadequate margins 
B) Locking on 
C) Occlusal voids 
D) Distortion 
A) Inadequate margins 
B) Locking on 
C) Occlusal voids 
D) Distortion

Question 16

Which cement is most commonly used with provisional crowns?

Accepted Answer

A) Temporary 
B) Polycarboxylate 
C) Glass ionomer 
D) Composite resin 
A) Temporary 
B) Polycarboxylate 
C) Glass ionomer 
D) Composite resin

Question 17

During a crown preparation appointment,when are preformed provisional crowns tried in for size and shape?

Accepted Answer

A) After 
B) During 
C) Before 
D) None of the above 
A) After 
B) During 
C) Before 
D) None of the above

Question 18

Which statement is correct regarding prefabricated temporary crowns?

Accepted Answer

A) They can be used for posterior but not anterior preparations. 
B) They are available in cast gold. 
C) They are available in porcelain fused-to-metal. 
D) Crowns made of polycarbonate are used where appearance is important. 
A) They can be used for posterior but not anterior preparations. 
B) They are available in cast gold. 
C) They are available in porcelain fused-to-metal. 
D) Crowns made of polycarbonate are used where appearance is important.

Question 19

Which statement is incorrect about 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.

Question 20

What is the advantage of using preformed crowns for provisional coverage?

Accepted Answer

A) It reduces time required for the procedure. 
B) Preformed shells comes with anatomic features of natural teeth. 
C) Monomer setting time is less than 90 seconds. 
D) Both a and b are advantages. 
A) It reduces time required for the procedure. 
B) Preformed shells comes with anatomic features of natural teeth. 
C) Monomer setting time is less than 90 seconds. 
D) Both a and b are advantages.

Exam 51: Provisional Coverage

The cervical margins of the provisional should have no more than ___ mm of space between the crown margin and the finish line of the preparation.

Why is the provisional placed on the tooth in the patient's mouth for the final curing stage?

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

Which provisional,preformed crowns are used on anterior teeth,when appearance is important?

Once the acrylic-loaded impression is on the prepared tooth,it should remain on the tooth for approximately how long?

When would a stainless steel crown be used for provisional coverage?

Which statement is correct regarding preformed polycarbonate crowns?

What is one disadvantage of using custom provisional coverage?

Which of the following is appropriate patient home-care instruction for someone with provisional coverage?

Which provisional uses a polymer shell filled with a hybrid composite resin that bonds with the preformed crown and tooth?

Which statement is a contraindication for provisional coverage?

Of the materials listed,which one is used most commonly for custom provisional coverage?

What instructions are given regarding home care instructions for a patient with provisional coverage?

The two types of provisional coverage include _____ and _____.

What could occur when fabricating a provisional if undercuts are present on proximal surfaces?

Which cement is most commonly used with provisional crowns?

During a crown preparation appointment,when are preformed provisional crowns tried in for size and shape?

Which statement is correct regarding prefabricated temporary crowns?

Which statement is incorrect about prefabricated crowns?

What is the advantage of using preformed crowns for provisional coverage?

History of Dentistry

The Professional Dental Assistant

The Dental Healthcare Team

Dental Ethics

Dentistry and the Law

General Anatomy

General Physiology

Oral Embryology and Histology

Head and Neck Anatomy

Landmarks of the Face and Oral Cavity

Overview of the Dentitions

Tooth Morphology

Dental Caries

Periodontal Disease

Preventive Dentistry

Nutrition

Oral Pathology

Microbiology

Disease Transmission and Infection Prevention

Principles and Techniques of Disinfection

Principles and Techniques of Instrument Processing and Sterilization

Regulatory and Advisory Agencies

Chemical and Waste Management

Dental Unit Waterlines

Ergonomics

The Patient Record

Vital Signs

Oral Diagnosis and Treatment Planning

The Special Needs and Medically Compromised Patient

Principles of Pharmacology

Assisting in a Medical Emergency

The Dental Office

Delivering Dental Care

Dental Hand Instruments

Dental Handpieces and Accessories

Moisture Control

Anesthesia and Pain Control

Foundations of Radiography, Radiographic Equipment, and Radiation Safety

Digital Imaging, Dental Film, and Processing Radiographs

Legal Issues, Quality Assurance, and Infection Prevention

Intraoral Imaging

Extraoral Imaging

Restorative and Esthetic Dental Materials

Dental Liners, Bases, and Bonding Systems

Dental Cements

Impression Materials

Laboratory Materials and Procedures

General Dentistry

Matrix Systems for Restorative Dentistry

Fixed Prosthodontics

Removable Prosthodontics

Dental Implants

Endodontics

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Orthodontics

The two types of provisional coverage include _ and _.