Question 1

Which is not true in the application of etchant material?

Accepted Answer

A) The tooth must be free of debris. 
B) The tooth must be thoroughly dried. 
C) The etchant gel is placed only where needed. 
D) It is cured for 15 to 30 seconds. 
A) The tooth must be free of debris. 
B) The tooth must be thoroughly dried. 
C) The etchant gel is placed only where needed. 
D) It is cured for 15 to 30 seconds.

Question 2

Etchant removes the _____ layer in preparation for bonding.

Accepted Answer

A) varnish 
B) cavity liner 
C) smear 
D) sclerosing 
A) varnish 
B) cavity liner 
C) smear 
D) sclerosing

Question 3

Which of the following is an example of biological pulpal stimuli?

Accepted Answer

A) Changes from hot and cold coming into contact with the tooth 
B) Traumatic occlusion, which occurs when a person's "bite" does not occlude properly 
C) Acidic materials reaching pulpal tissues 
D) Bacteria from saliva coming into contact with pulpal tissues 
A) Changes from hot and cold coming into contact with the tooth 
B) Traumatic occlusion, which occurs when a person's "bite" does not occlude properly 
C) Acidic materials reaching pulpal tissues 
D) Bacteria from saliva coming into contact with pulpal tissues

Question 4

Which of the following materials used as a base needs to set at least 5 minutes before placing the restoration?

Accepted Answer

A) Polycarboxylate cement 
B) ZOE 
C) Zinc phosphate cement 
D) Desensitizing materials 
A) Polycarboxylate cement 
B) ZOE 
C) Zinc phosphate cement 
D) Desensitizing materials

Question 5

Zinc phosphate cement should be mixed:

Accepted Answer

A) on a cool glass slab. 
B) on a warm glass slab. 
C) on a paper pad. 
D) quickly. 
A) on a cool glass slab. 
B) on a warm glass slab. 
C) on a paper pad. 
D) quickly.

Question 6

A desensitizer could be indicated for which of the following procedures?

Accepted Answer

A) Amalgam 
B) Sealants 
C) Provisional coverage 
D) Fluoride 
A) Amalgam 
B) Sealants 
C) Provisional coverage 
D) Fluoride

Question 7

Which of the following would be the material of choice as an insulating base under a composite restoration?

Accepted Answer

A) Zinc phosphate 
B) Zinc oxide eugenol 
C) Polycarboxylate 
D) Both a and c 
A) Zinc phosphate 
B) Zinc oxide eugenol 
C) Polycarboxylate 
D) Both a and c

Question 8

The smear layer is composed of:

Accepted Answer

A) particularly dense enamel at the dentino-enamel junction. 
B) a very thin layer of debris remaining on the dentin after cavity preparation. 
C) an oxygen-inhibited layer on the surface of cut dentin. 
D) a very porous layer of cut ends of dentinal tubules. 
A) particularly dense enamel at the dentino-enamel junction. 
B) a very thin layer of debris remaining on the dentin after cavity preparation. 
C) an oxygen-inhibited layer on the surface of cut dentin. 
D) a very porous layer of cut ends of dentinal tubules.

Question 9

If a varnish is used,it is always used before other materials.

Accepted Answer

A) True 
 B)False

Question 10

A dental liner is placed:

Accepted Answer

A) along inside of cavity walls. 
B) mesial and distal of the tooth. 
C) in the deepest area of the tooth preparation. 
D) along the interproximal margin. 
A) along inside of cavity walls. 
B) mesial and distal of the tooth. 
C) in the deepest area of the tooth preparation. 
D) along the interproximal margin.

Question 11

If decay has extended into or close to the pulp,which material(s) may be indicated?

Accepted Answer

A) Liner/varnish 
B) Base/desensitizer 
C) Bonding agent 
D) Any or all of the products 
A) Liner/varnish 
B) Base/desensitizer 
C) Bonding agent 
D) Any or all of the products

Question 12

Types of pulpal stimuli may be:

Accepted Answer

A) physical. 
B) mechanical. 
C) chemical or biologic. 
D) all of the above. 
A) physical. 
B) mechanical. 
C) chemical or biologic. 
D) all of the above.

Question 13

Protective bases are placed when it is necessary to protect the pulp before the restoration is placed,because without this protection there may be:

Accepted Answer

A) a premature contact on the restorative material. 
B) occlusal trauma. 
C) postoperative sensitivity and damage to the pulp. 
D) premature loss of the restorative material. 
A) a premature contact on the restorative material. 
B) occlusal trauma. 
C) postoperative sensitivity and damage to the pulp. 
D) premature loss of the restorative material.

Question 14

Which of the following would be the material of choice as an insulating base as well as a sedative base?

Accepted Answer

A) Zinc phosphate 
B) Zinc oxide eugenol 
C) Polycarboxylate 
D) All of the above 
A) Zinc phosphate 
B) Zinc oxide eugenol 
C) Polycarboxylate 
D) All of the above

Question 15

What step is necessary in preparation for dentin bonding?

Accepted Answer

A) Application of an etchant 
B) Addition of the smear layer 
C) Removal of the smear layer 
D) Both a and c 
A) Application of an etchant 
B) Addition of the smear layer 
C) Removal of the smear layer 
D) Both a and c

Question 16

Desensitizers used to help prevent hypersensitivity should be used:

Accepted Answer

A) in large amounts. 
B) in contact with soft tissue. 
C) to seal all affected dentinal tubules. 
D) all of the above. 
A) in large amounts. 
B) in contact with soft tissue. 
C) to seal all affected dentinal tubules. 
D) all of the above.

Question 17

Calcium hydroxide liner is a frequently used liner because it:

Accepted Answer

A) stimulates production of secondary dentin. 
B) can be used with only composite resin material. 
C) acts as a base as well as a liner. 
D) does not require the use of a filling material. 
A) stimulates production of secondary dentin. 
B) can be used with only composite resin material. 
C) acts as a base as well as a liner. 
D) does not require the use of a filling material.

Question 18

The placement of _____ is an example of enamel bonding.

Accepted Answer

A) sealant 
B) dental varnish 
C) calcium hydroxide 
D) dental base 
A) sealant 
B) dental varnish 
C) calcium hydroxide 
D) dental base

Exam 44: Dental Liners, Bases, and Bonding Systems

Which is not true in the application of etchant material?

Etchant removes the _____ layer in preparation for bonding.

Which of the following is an example of biological pulpal stimuli?

Which of the following materials used as a base needs to set at least 5 minutes before placing the restoration?

Zinc phosphate cement should be mixed:

A desensitizer could be indicated for which of the following procedures?

Which of the following would be the material of choice as an insulating base under a composite restoration?

The smear layer is composed of:

If a varnish is used,it is always used before other materials.

A dental liner is placed:

If decay has extended into or close to the pulp,which material(s) may be indicated?

Types of pulpal stimuli may be:

Protective bases are placed when it is necessary to protect the pulp before the restoration is placed,because without this protection there may be:

Which of the following would be the material of choice as an insulating base as well as a sedative base?

What step is necessary in preparation for dentin bonding?

Desensitizers used to help prevent hypersensitivity should be used:

Calcium hydroxide liner is a frequently used liner because it:

The placement of _____ is an example of enamel bonding.

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 Cements

Impression Materials

Laboratory Materials and Procedures

General Dentistry

Matrix Systems for Restorative Dentistry

Fixed Prosthodontics

Provisional Coverage

Removable Prosthodontics

Dental Implants

Endodontics

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Orthodontics

Communication in the Dental Office

Business Operating Systems