Question 1

Moving the __________ increases or decreases the size of the loop to match the diameter of the tooth.

Accepted Answer

A)  vise 
B)  outer knob 
C)  inner knob 
D)  guide channels 
A)  vise 
B)  outer knob 
C)  inner knob 
D)  guide channels C

Question 2

Match between columns
                        Premises: Inner knob
Vise
Guide channels
Spindle
Frame
Outer knob

Accepted Answer

The Answer of Screw-like rod used to secure the band is...

Question 3

Place in order the steps for placing and removing the Tofflemire matrix and wedge.
1) Lift the band from around the tooth
2) Place the matrix on the tooth
3) Place the wedge(s)
4) Remove the wedge(s)
5) Separate the retainer from the band

Accepted Answer

A)  3, 1, 2, 4, 5 
B)  3, 2, 5, 1, 4 
C)  2, 3, 4, 5, 1 
D)  2, 3, 4, 1, 5 
A)  3, 1, 2, 4, 5 
B)  3, 2, 5, 1, 4 
C)  2, 3, 4, 5, 1 
D)  2, 3, 4, 1, 5 C

Question 4

The wedges are usually placed from the lingual on the posterior teeth.

Accepted Answer

A) True 
 B)False

Question 5

Trituration time of an amalgam alloy is ____________.

Accepted Answer

A)  5 seconds 
B)  10 to 15 seconds 
C)  30 seconds 
D)  best determined by the manufacturer 
A)  5 seconds 
B)  10 to 15 seconds 
C)  30 seconds 
D)  best determined by the manufacturer

Question 6

Which metal is optional in amalgam alloy?

Accepted Answer

A)  Silver 
B)  Copper 
C)  Tin 
D)  Zinc 
A)  Silver 
B)  Copper 
C)  Tin 
D)  Zinc

Question 7

The plastic strip matrix is dispensed to approximately ____ inch(es) long.

Accepted Answer

A)  1/2 
B)  1 
C)  3 
D)  4 
A)  1/2 
B)  1 
C)  3 
D)  4

Question 8

Polymerization is the same as ____________.

Accepted Answer

A)  setting 
B)  mixing 
C)  both a and b 
D)  neither a nor b 
A)  setting 
B)  mixing 
C)  both a and b 
D)  neither a nor b

Question 9

Compomers are mostly used on ____________.

Accepted Answer

A)  Class III 
B)  Class V 
C)  all types of restorations on primary teeth 
D)  all of the above 
A)  Class III 
B)  Class V 
C)  all types of restorations on primary teeth 
D)  all of the above

Question 10

Mercury levels are determined in the human body by testing the ____________.

Accepted Answer

A)  urine 
B)  blood 
C)  eyes 
D)  hair 
A)  urine 
B)  blood 
C)  eyes 
D)  hair

Question 11

This type of matrix system is most often used on Class II restorations called the __________ matrix.

Accepted Answer

A)  sectional 
B)  strip 
A)  sectional 
B)  strip

Question 12

A sectional matrix system is most often used on Class IV restorations.

Accepted Answer

A) True 
 B)False

Question 13

If the Tofflemire™ matrix band becomes creased or bent during assembly, it is thrown away.

Accepted Answer

A) True 
 B)False

Question 14

The sectional matrix system uses a separate matrix band/ring for each surface.

Accepted Answer

A) True 
 B)False

Question 15

The actual mechanical means of combining alloy and mercury is ____________.

Accepted Answer

A)  mixing 
B)  amalgamation 
C)  trituration 
D)  Either b or c 
A)  mixing 
B)  amalgamation 
C)  trituration 
D)  Either b or c

Question 16

Mercury is a metal.

Accepted Answer

A) True 
 B)False

Question 17

The AutoMatrix is a matrix without a retainer.

Accepted Answer

A) True 
 B)False

Question 18

The Tofflemire™ retainer, contra-angle, is placed on the buccal surface of the anterior.

Accepted Answer

A) True 
 B)False

Question 19

Scrap mercury and amalgam should be ____________.

Accepted Answer

A)  thrown in the biohazard trash 
B)  thrown down the sink 
C)  placed in a covered container with used x-ray fixer solution in it 
D)  none of the above 
A)  thrown in the biohazard trash 
B)  thrown down the sink 
C)  placed in a covered container with used x-ray fixer solution in it 
D)  none of the above

Question 20

The __________ is the part of the Tofflemire retainer that is used to secure the band in the vice.

Accepted Answer

A)  outer knob 
B)  spindle 
C)  inner knob 
D)  guide channels 
A)  outer knob 
B)  spindle 
C)  inner knob 
D)  guide channels

Exam 38: Restorative Materials Matrix and Wedge

Moving the __________ increases or decreases the size of the loop to match the diameter of the tooth.

Place in order the steps for placing and removing the Tofflemire matrix and wedge. 1) Lift the band from around the tooth 2) Place the matrix on the tooth 3) Place the wedge(s) 4) Remove the wedge(s) 5) Separate the retainer from the band

The wedges are usually placed from the lingual on the posterior teeth.

Trituration time of an amalgam alloy is ____________.

Which metal is optional in amalgam alloy?

The plastic strip matrix is dispensed to approximately ____ inch(es) long.

Polymerization is the same as ____________.

Compomers are mostly used on ____________.

Mercury levels are determined in the human body by testing the ____________.

This type of matrix system is most often used on Class II restorations called the __________ matrix.

A sectional matrix system is most often used on Class IV restorations.

If the Tofflemire™ matrix band becomes creased or bent during assembly, it is thrown away.

The sectional matrix system uses a separate matrix band/ring for each surface.

The actual mechanical means of combining alloy and mercury is ____________.

Mercury is a metal.

The AutoMatrix is a matrix without a retainer.

The Tofflemire™ retainer, contra-angle, is placed on the buccal surface of the anterior.

Scrap mercury and amalgam should be ____________.

The __________ is the part of the Tofflemire retainer that is used to secure the band in the vice.

Introduction to the Dental Profession

Psychology Communication and Multicultural Interaction

Ethics Jurisprudence and the Health Information Portability and Accountability Act

Oral Health and Preventative Techniques

Nutrition

General Anatomy and Physiology

Head and Neck Anatomy

Embryology and Histology

Tooth Morphology

Microbiology

Infection Control

Management of Hazardous Materials

Preparation for Patient Care

Dental Charting

Pharmacology

Emergency Management

Introduction to the Dental Office and Basic Chairside Assisting

Basic Chairside Instruments and Tray Systems

Instrument Transfer and Maintaining the Operating Field

Anesthesia and Sedation

Introduction to Dental Radiography and Equipment

Production and Evaluation of Dental Radiographs

Extraoral and Digital Radiography

Endodontics

Oral and Maxillofacial Surgery

Dental Implants

Oral Pathology

Orthodontics

Pediatric Dentistry

Dental Sealants

Periodontics

Coronal Polish

Fixed Prosthodontics and Gingival Retraction

Computerized Impression and Restorative Systems

Cosmetic Dentistry and Whitening

Removable Prosthodontics

Dental Cements Bases Liners and Bonding Agents

Laboratory Materials and Techniques

Dental Office Management

Employment Strategies

Filters