Question 1

Which type(s) of cements can be light-cured?

Accepted Answer

A) Composite resin 
B) Glass ionomer 
C) ZOE 
D) Both a or b 
A) Composite resin 
B) Glass ionomer 
C) ZOE 
D) Both a or b D

Question 2

Which is the correct cementing consistency for zinc phosphate cement?

Accepted Answer

A) The cement should be soupy. 
B) The cement should string up and break about 1 inch from the slab. 
C) The mix should be slightly tacky. 
D) The mix should form in a ball. 
A) The cement should be soupy. 
B) The cement should string up and break about 1 inch from the slab. 
C) The mix should be slightly tacky. 
D) The mix should form in a ball. B

Question 3

Which is not true of the preparing the tooth for a composite resin cementation?

Accepted Answer

A) Etch enamel and dentin for 15 seconds. 
B) Rinse completely. 
C) Blot the tooth with a cotton pellet. 
D) Dry the tooth completely. 
A) Etch enamel and dentin for 15 seconds. 
B) Rinse completely. 
C) Blot the tooth with a cotton pellet. 
D) Dry the tooth completely. D

Question 4

A cement frequently used for cementing provisional coverage is:

Accepted Answer

A) type I . 
B) type II ZOE. 
C) composite resin. 
D) glass ionomer. 
A) type I . 
B) type II ZOE. 
C) composite resin. 
D) glass ionomer.

Question 5

If used as a base zinc phosphate requires the use of a liner first.

Accepted Answer

A) True 
 B)False

Question 6

Type _____ glass ionomer cement is designed for restoring areas of erosion near the gingiva.

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
A) I 
B) II 
C) III 
D) IV

Question 7

The type of glass ionomer cement used for orthodontic cementation is type:

Accepted Answer

A) I 
B) II 
C) III 
D) I, II, or III 
A) I 
B) II 
C) III 
D) I, II, or III

Question 8

When dispensing most cement,generally the powder should be _______ before dispensing.

Accepted Answer

A) packed 
B) fluffed 
C) measured 
D) both b and c 
A) packed 
B) fluffed 
C) measured 
D) both b and c

Question 9

To increase the working time of glass ionomer it can be mixed:

Accepted Answer

A) quickly. 
B) slowly. 
C) on a glass slab. 
D) none of the above. 
A) quickly. 
B) slowly. 
C) on a glass slab. 
D) none of the above.

Question 10

Which type of cement is preferred for cementation of ceramic veneers?

Accepted Answer

A) Zinc phosphate 
B) Polycarboxylate 
C) Glass ionomer 
D) Composite resin 
A) Zinc phosphate 
B) Polycarboxylate 
C) Glass ionomer 
D) Composite resin

Question 11

Before cementing a porcelain crown,the internal surface of the crown is:

Accepted Answer

A) roughened with air abrasion. 
B) roughened with pumice. 
C) moistened. 
D) polished. 
A) roughened with air abrasion. 
B) roughened with pumice. 
C) moistened. 
D) polished.

Question 12

Permanent cements are used for luting all except:

Accepted Answer

A) laminate veneers. 
B) orthodontic fixed appliances. 
C) provisionals. 
D) cast restorations. 
A) laminate veneers. 
B) orthodontic fixed appliances. 
C) provisionals. 
D) cast restorations.

Question 13

A _____ is classified as a type I dental cement and acts as an adhesive to hold together the indirect restoration and the tooth structure.

Accepted Answer

A) temporary cement 
B) luting cement 
C) provisional cement 
D) liner 
A) temporary cement 
B) luting cement 
C) provisional cement 
D) liner

Question 14

The dental assistant may have the responsibility of placing the mixed cement into the casting.The cement should be loaded:

Accepted Answer

A) into the casting until it is overflowing. 
B) so that a thin lining covers all internal walls of the casting. 
C) to the top margin of the crown so that it is full. 
D) only on the very bottom of the crown. 
A) into the casting until it is overflowing. 
B) so that a thin lining covers all internal walls of the casting. 
C) to the top margin of the crown so that it is full. 
D) only on the very bottom of the crown.

Question 15

Which of the following will not help to dissipate heat when mixing zinc phosphate cement?

Accepted Answer

A) Mixing on a cool glass slab 
B) Adding small increments 
C) Spatulate over a large area of the slab 
D) Mixing quickly 
A) Mixing on a cool glass slab 
B) Adding small increments 
C) Spatulate over a large area of the slab 
D) Mixing quickly

Question 16

Polycarboxylate cement is starting to set if it appears:

Accepted Answer

A) stringy or weblike. 
B) glossy. 
C) powdery. 
D) all of the above. 
A) stringy or weblike. 
B) glossy. 
C) powdery. 
D) all of the above.

Question 17

If excess cement is not removed from in and around the gingival margin and sulcus of the tooth,the cement can:

Accepted Answer

A) dissolve out from under the crown, which then may be lost or swallowed. 
B) irritate the area and cause inflammation and discomfort. 
C) demineralize the enamel. 
D) create an occlusal prematurity. 
A) dissolve out from under the crown, which then may be lost or swallowed. 
B) irritate the area and cause inflammation and discomfort. 
C) demineralize the enamel. 
D) create an occlusal prematurity.

Question 18

Which cement is the most acidic and irritating to the pulp?

Accepted Answer

A) Zinc phosphate 
B) ZOE 
C) Composite resin 
D) Glass ionomer 
A) Zinc phosphate 
B) ZOE 
C) Composite resin 
D) Glass ionomer

Question 19

Which of the following will not minimize the loss of water from evaporation when working with dental cements?

Accepted Answer

A) Dispensing powder first and then liquid 
B) Dispensing the liquid first and then powder 
C) Dispense liquid when it is time to mix the cement 
D) Keeping the lid on the liquid 
A) Dispensing powder first and then liquid 
B) Dispensing the liquid first and then powder 
C) Dispense liquid when it is time to mix the cement 
D) Keeping the lid on the liquid

Question 20

When composite resin cement is used,the tooth must be:

Accepted Answer

A) free of all plaque and debris. 
B) etched or treated with a bonding system. 
C) sprayed with water before cementation. 
D) both a and b. 
A) free of all plaque and debris. 
B) etched or treated with a bonding system. 
C) sprayed with water before cementation. 
D) both a and b.

Exam 45: Dental Cements

Which type(s) of cements can be light-cured?

Which is the correct cementing consistency for zinc phosphate cement?

Which is not true of the preparing the tooth for a composite resin cementation?

A cement frequently used for cementing provisional coverage is:

If used as a base zinc phosphate requires the use of a liner first.

Type _____ glass ionomer cement is designed for restoring areas of erosion near the gingiva.

The type of glass ionomer cement used for orthodontic cementation is type:

When dispensing most cement,generally the powder should be _______ before dispensing.

To increase the working time of glass ionomer it can be mixed:

Which type of cement is preferred for cementation of ceramic veneers?

Before cementing a porcelain crown,the internal surface of the crown is:

Permanent cements are used for luting all except:

A _____ is classified as a type I dental cement and acts as an adhesive to hold together the indirect restoration and the tooth structure.

The dental assistant may have the responsibility of placing the mixed cement into the casting.The cement should be loaded:

Which of the following will not help to dissipate heat when mixing zinc phosphate cement?

Polycarboxylate cement is starting to set if it appears:

If excess cement is not removed from in and around the gingival margin and sulcus of the tooth,the cement can:

Which cement is the most acidic and irritating to the pulp?

Which of the following will not minimize the loss of water from evaporation when working with dental cements?

When composite resin cement is used,the tooth must be:

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

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