Question 1

Preparing bands for cementation includes all of the following except:

Accepted Answer

A) wiping attachments with wax or Chapstick. 
B) placing the band occlusal surface down on masking tape. 
C) placing the band gingival surface down on masking tape. 
D) fill the entire inner surface with cement. 
A) wiping attachments with wax or Chapstick. 
B) placing the band occlusal surface down on masking tape. 
C) placing the band gingival surface down on masking tape. 
D) fill the entire inner surface with cement.

Question 2

The arch wire that is used as a "working arch wire" is:

Accepted Answer

A) nickel titanium. 
B) stainless steel. 
C) beta titanium. 
D) optiflex. 
A) nickel titanium. 
B) stainless steel. 
C) beta titanium. 
D) optiflex.

Question 3

Wire ligatures should be twisted and cut leaving a _____ mm pigtail.

Accepted Answer

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

Question 4

Class II occlusion _____.

Accepted Answer

A) is normal occlusion 
B) is mesioclusion 
C) occurs when the mesiobuccal cusp of the maxillary first molar occludes in the interdental space between the mandibular second premolar and the mesial cusp of the mandibular first molar 
D) occurs when the mesiobuccal cusp of the maxillary first molar occludes in the interdental space between the distal cusp of the mandibular first permanent molar and the mesial cusp of the mandibular second permanent molar 
A) is normal occlusion 
B) is mesioclusion 
C) occurs when the mesiobuccal cusp of the maxillary first molar occludes in the interdental space between the mandibular second premolar and the mesial cusp of the mandibular first molar 
D) occurs when the mesiobuccal cusp of the maxillary first molar occludes in the interdental space between the distal cusp of the mandibular first permanent molar and the mesial cusp of the mandibular second permanent molar

Question 5

An orthodontic tooth positioner is not used:

Accepted Answer

A) to retain teeth in position. 
B) to separate the teeth before banding. 
C) to massage tissue. 
D) prior to a retainer. 
A) to retain teeth in position. 
B) to separate the teeth before banding. 
C) to massage tissue. 
D) prior to a retainer.

Question 6

In ______,the mesiobuccal cusp of the maxillary permanent first molar occludes in the interdental space between the distal cusp of the mandibular first second premolar.

Accepted Answer

A) distoclusion 
B) labioversion 
C) linguoversion 
D) mesioclusion 
A) distoclusion 
B) labioversion 
C) linguoversion 
D) mesioclusion

Question 7

Arch wires that are made of _____ are useful in early stages of treatment because they are flexible.

Accepted Answer

A) nickel titanium 
B) stainless steel 
C) beta titanium 
D) optiflex 
A) nickel titanium 
B) stainless steel 
C) beta titanium 
D) optiflex

Question 8

When taking photographs,the full direct view includes the:

Accepted Answer

A) extraoral frontal view, with the lips in a relaxed position. 
B) intraoral view, with all teeth in occlusion. 
C) extraoral profile view of the patient's right side, with the lips in a relaxed position. 
D) intraoral right buccal view, with the distal of the canine to the distal of the last molar. 
A) extraoral frontal view, with the lips in a relaxed position. 
B) intraoral view, with all teeth in occlusion. 
C) extraoral profile view of the patient's right side, with the lips in a relaxed position. 
D) intraoral right buccal view, with the distal of the canine to the distal of the last molar.

Question 9

Elastic ligature ties should be removed using:

Accepted Answer

A) bird beak pliers. 
B) a spoon excavator. 
C) a hemostat. 
D) an orthodontic scaler. 
A) bird beak pliers. 
B) a spoon excavator. 
C) a hemostat. 
D) an orthodontic scaler.

Question 10

Elastic separators can be left in the mouth for ____ days,and steel can be left in the mouth for _____ days.

Accepted Answer

A) 7; 7 
B) 14; 5 
C) 5; 14 
D) 14; 14 
A) 7; 7 
B) 14; 5 
C) 5; 14 
D) 14; 14

Question 11

Orthodontic fixed appliances are also known as:

Accepted Answer

A) braces. 
B) separators. 
C) Hawley retainers. 
D) clear "aligners." 
A) braces. 
B) separators. 
C) Hawley retainers. 
D) clear "aligners."

Question 12

_____ are attached to hooks or buttons that are secured on the band or brackets.

Accepted Answer

A) Springs 
B) Tooth positioners 
C) Elastic separators 
D) Elastics 
A) Springs 
B) Tooth positioners 
C) Elastic separators 
D) Elastics

Question 13

Which is not true of customized aligners?

Accepted Answer

A) They consist of a series of aligners designed by computer technology. 
B) Each aligner is worn for about two weeks. 
C) They can be used for all types of orthodontic treatment. 
D) They are referred to as invisible braces. 
A) They consist of a series of aligners designed by computer technology. 
B) Each aligner is worn for about two weeks. 
C) They can be used for all types of orthodontic treatment. 
D) They are referred to as invisible braces.

Question 14

An advantage of using the patient's model to select bands is that:

Accepted Answer

A) the patient doesn't need to be present. 
B) it is more accurate. 
C) neither are advantages. 
D) both are advantages. 
A) the patient doesn't need to be present. 
B) it is more accurate. 
C) neither are advantages. 
D) both are advantages.

Question 15

Which is NOT a function of the dental assistant in an orthodontic practice?

Accepted Answer

A) To motivate and reinforce oral home care 
B) To make a diagnosis 
C) To make appliance adjustments 
D) To take and fabricate diagnostic records 
A) To motivate and reinforce oral home care 
B) To make a diagnosis 
C) To make appliance adjustments 
D) To take and fabricate diagnostic records

Question 16

The function of the _____ is to apply force to either move the teeth or hold them in the desired positions.

Accepted Answer

A) buccal tubes 
B) bracket 
C) arch wire 
D) none of the above 
A) buccal tubes 
B) bracket 
C) arch wire 
D) none of the above

Question 17

During the frontal evaluation of facial esthetics,the face is examined:

Accepted Answer

A) to determine whether the jaws are proportionately positioned. 
B) to evaluate lip protrusion. 
C) for bilateral symmetry. 
D) to evaluate the vertical facial proportions and the mandibular angle. 
A) to determine whether the jaws are proportionately positioned. 
B) to evaluate lip protrusion. 
C) for bilateral symmetry. 
D) to evaluate the vertical facial proportions and the mandibular angle.

Question 18

What is used to place elastic separators?

Accepted Answer

A) Hemostat 
B) Dental floss 
C) Elastic separating pliers 
D) Either b or c 
A) Hemostat 
B) Dental floss 
C) Elastic separating pliers 
D) Either b or c

Question 19

An open bite refers to a condition wherein:

Accepted Answer

A) there are no posterior teeth. 
B) there are spaces between teeth in the same arch. 
C) maxillary and mandibular teeth do not touch. 
D) the teeth contact only during mastication. 
A) there are no posterior teeth. 
B) there are spaces between teeth in the same arch. 
C) maxillary and mandibular teeth do not touch. 
D) the teeth contact only during mastication.

Question 20

On which teeth are brackets most commonly bonded?

Accepted Answer

A) Anterior teeth 
B) Premolars 
C) Molars 
D) Both a and b 
A) Anterior teeth 
B) Premolars 
C) Molars 
D) Both a and b

Exam 60: Orthodontics

Preparing bands for cementation includes all of the following except:

The arch wire that is used as a "working arch wire" is:

Wire ligatures should be twisted and cut leaving a _____ mm pigtail.

Class II occlusion _____.

An orthodontic tooth positioner is not used:

In ______,the mesiobuccal cusp of the maxillary permanent first molar occludes in the interdental space between the distal cusp of the mandibular first second premolar.

Arch wires that are made of _____ are useful in early stages of treatment because they are flexible.

When taking photographs,the full direct view includes the:

Elastic ligature ties should be removed using:

Elastic separators can be left in the mouth for ____ days,and steel can be left in the mouth for _____ days.

Orthodontic fixed appliances are also known as:

_____ are attached to hooks or buttons that are secured on the band or brackets.

Which is not true of customized aligners?

An advantage of using the patient's model to select bands is that:

Which is NOT a function of the dental assistant in an orthodontic practice?

The function of the _____ is to apply force to either move the teeth or hold them in the desired positions.

During the frontal evaluation of facial esthetics,the face is examined:

What is used to place elastic separators?

An open bite refers to a condition wherein:

On which teeth are brackets most commonly bonded?

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

Provisional Coverage

Removable Prosthodontics

Dental Implants

Endodontics

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Elastic separators can be left in the mouth for days,and steel can be left in the mouth for _ days.