Question 1

Types of pulpal stimuli can 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 2

A properly etched tooth will appear:

Accepted Answer

A) shiny. 
B) pitted. 
C) frosted. 
D) as none of the above. 
A) shiny. 
B) pitted. 
C) frosted. 
D) as none of the above.

Question 3

Failure to place a protective base under a restoration can result in:

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 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

All of the following statements are true of the process of removing the smear layer in dentin bonding except:

Accepted Answer

A) during preparation, thousands of dentin tubules are cut. 
B) open ends of dentin tubules lead to sensitivity. 
C) all moisture must be removed to assist in adhesion. 
D) completely drying the tooth structure will harm the tooth. 
A) during preparation, thousands of dentin tubules are cut. 
B) open ends of dentin tubules lead to sensitivity. 
C) all moisture must be removed to assist in adhesion. 
D) completely drying the tooth structure will harm the tooth.

Question 6

Materials that are versatile in their uses,such as for specialized dental bases,include:

Accepted Answer

A) dental cements. 
B) dental varnishes. 
C) dental liners. 
D) calcium hydroxide. 
A) dental cements. 
B) dental varnishes. 
C) dental liners. 
D) calcium hydroxide.

Question 7

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 8

Calcium hydroxide:

Accepted Answer

A) cannot be placed under direct composite resins because it will inhibit polymerization. 
B) stimulates the production of reparative dentin. 
C) functions as a thick base to support extensive restorations. 
D) consists of a resin in an organic solvent. 
A) cannot be placed under direct composite resins because it will inhibit polymerization. 
B) stimulates the production of reparative dentin. 
C) functions as a thick base to support extensive restorations. 
D) consists of a resin in an organic solvent.

Question 9

Etching for dental bonding is done with:

Accepted Answer

A) phosphoric acid. 
B) ammonia. 
C) isopropyl alcohol. 
D) hydrogen peroxide. 
A) phosphoric acid. 
B) ammonia. 
C) isopropyl alcohol. 
D) hydrogen peroxide.

Question 10

A necessary step in preparation for dentin bonding is:

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 11

Bonding agents or adhesives:

Accepted Answer

A) can be light-cured. 
B) must be used after etching. 
C) are available as self-cured. 
D) are all of the above. 
A) can be light-cured. 
B) must be used after etching. 
C) are available as self-cured. 
D) are all of the above.

Question 12

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 13

Dental varnish is used in the cavity preparation to:

Accepted Answer

A) seal dentinal tubules. 
B) reduce leakage around a restoration. 
C) stimulate growth of reparative dentin. 
D) do both a and b 
A) seal dentinal tubules. 
B) reduce leakage around a restoration. 
C) stimulate growth of reparative dentin. 
D) do both a and b

Question 14

Desensitizer should be placed:

Accepted Answer

A) after thoroughly drying the tooth. 
B) on enamel only. 
C) and dried immediately. 
D) after rinsing and lightly drying the tooth. 
A) after thoroughly drying the tooth. 
B) on enamel only. 
C) and dried immediately. 
D) after rinsing and lightly drying the tooth.

Question 15

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

Question 17

Varnish should be placed on the ______ of the preparation.

Accepted Answer

A) walls 
B) floor 
C) margins 
D) All of the above are correct. 
A) walls 
B) floor 
C) margins 
D) All of the above are correct.

Question 18

Which of the following is true of the bonding process?

Accepted Answer

A) It can be performed on only the dentin. 
B) Contamination will not hinder the bond. 
C) Avoid overdrying or desiccating the tooth; the product works best on a slightly moist tooth structure. 
D) Using a small amount of bonding material is better than using too much. 
A) It can be performed on only the dentin. 
B) Contamination will not hinder the bond. 
C) Avoid overdrying or desiccating the tooth; the product works best on a slightly moist tooth structure. 
D) Using a small amount of bonding material is better than using too much.

Exam 44: Dental Liners, Bases, and Bonding Systems

Types of pulpal stimuli can be:

A properly etched tooth will appear:

Failure to place a protective base under a restoration can result in:

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

All of the following statements are true of the process of removing the smear layer in dentin bonding except:

Materials that are versatile in their uses,such as for specialized dental bases,include:

Calcium hydroxide liner is a frequently used liner because it:

Calcium hydroxide:

Etching for dental bonding is done with:

A necessary step in preparation for dentin bonding is:

Bonding agents or adhesives:

A dental liner is placed:

Dental varnish is used in the cavity preparation to:

Desensitizer should be placed:

The smear layer is composed of:

Desensitizers used to help prevent hypersensitivity should be used:

Varnish should be placed on the ______ of the preparation.

Which of the following is true of the bonding process?

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