Question 1

An anterior open bite refers to which condition?

Accepted Answer

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

Question 2

Buccal arch wire tubes are located on which bands?

Accepted Answer

A) Maxillary first molar 
B) Mandibular premolar 
C) Maxillary central incisors 
D) Mandibular canines 
A) Maxillary first molar 
B) Mandibular premolar 
C) Maxillary central incisors 
D) Mandibular canines A

Question 3

Which of the following 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 D

Question 4

How is a patient instructed to clean under the arch wire?

Accepted Answer

A) Use an interproximal brush. 
B) Use a floss threader. 
C) Use a Waterpik. 
D) All of the above are correct. 
A) Use an interproximal brush. 
B) Use a floss threader. 
C) Use a Waterpik. 
D) All of the above are correct.

Question 5

In class _____ occlusion,or distoclusion,the mandibular arch and the body of the mandible are in bilateral,distal relationship to the maxillary teeth.

Accepted Answer

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

Question 6

Severe malocclusion and dental facial deformities,both of which can cause social stigma and have a negative effect on a patient's self-esteem,are examples of which type of adversity?

Accepted Answer

A) Psychosocial function 
B) Oral function 
C) Dental disease 
D) Both a and c 
A) Psychosocial function 
B) Oral function 
C) Dental disease 
D) Both a and c

Question 7

Which instrument removes elastomeric ligature ties?

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 8

Which statement is incorrect about preparing a band for cementation?

Accepted Answer

A) Wipe attachments with wax or Chapstick. 
B) Place the band occlusal surface down on masking tape. 
C) Place the band gingival surface down on masking tape. 
D) Fill the entire inner surface with cement. 
A) Wipe attachments with wax or Chapstick. 
B) Place the band occlusal surface down on masking tape. 
C) Place the band gingival surface down on masking tape. 
D) Fill the entire inner surface with cement.

Question 9

What is overjet?

Accepted Answer

A) Horizontal distance between maxillary and mandibular teeth 
B) Coronal length of maxillary anterior teeth 
C) Vertical overlap of maxillary and mandibular anterior teeth 
D) Labioversion of the mandibular teeth 
A) Horizontal distance between maxillary and mandibular teeth 
B) Coronal length of maxillary anterior teeth 
C) Vertical overlap of maxillary and mandibular anterior teeth 
D) Labioversion of the mandibular teeth

Question 10

What is the purpose of the headgear tube?

Accepted Answer

A) It is placed on the upper first molar bands. 
B) It stabilizes the ends of the facebow. 
C) It assists with retention of the arch wire. 
D) Both a and b are purposes. 
A) It is placed on the upper first molar bands. 
B) It stabilizes the ends of the facebow. 
C) It assists with retention of the arch wire. 
D) Both a and b are purposes.

Question 11

During cementation of bands,where is the cement placed?

Accepted Answer

A) Into the tubes 
B) On the tooth 
C) Outer surface of the band 
D) Inner surface of the band 
A) Into the tubes 
B) On the tooth 
C) Outer surface of the band 
D) Inner surface of the band

Question 12

Which instrument is used in the placement of elastomeric ligature ties?

Accepted Answer

A) Locking hemostat 
B) Pigtail explorer 
C) Scaler 
D) Ligature-tying pliers 
A) Locking hemostat 
B) Pigtail explorer 
C) Scaler 
D) Ligature-tying pliers

Question 13

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) wire tie 
A) buccal tubes 
B) bracket 
C) arch wire 
D) wire tie

Question 14

Which of the following is used to tie the arch wire into orthodontic brackets?

Accepted Answer

A) Separating wire 
B) Wire ligatures 
C) Elastomeric ligatures 
D) Both b and c 
A) Separating wire 
B) Wire ligatures 
C) Elastomeric ligatures 
D) Both b and c

Question 15

During the frontal evaluation of facial esthetics,why is the face examined?

Accepted Answer

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

Question 16

Which condition occurs when the mandible is located ahead of the maxilla?

Accepted Answer

A) Overbite 
B) Underbite 
C) Retrusion 
D) Centric relation 
A) Overbite 
B) Underbite 
C) Retrusion 
D) Centric relation

Question 17

The orthodontic problems of most people come from an interaction of which of the following? (Select all that apply.)

Accepted Answer

A) Developmental 
B) Genetic 
C) Environmental 
D) Functional influences 
A) Developmental 
B) Genetic 
C) Environmental 
D) Functional influences

Question 18

When taking photographs,the full direct view includes what?

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 19

_____ 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 20

What is the purpose of an orthodontic positioner?

Accepted Answer

A) To move the teeth 
B) To retain the teeth in their desired position 
C) To reposition the teeth during orthodontic treatment 
D) To act as a permanent retainer 
A) To move the teeth 
B) To retain the teeth in their desired position 
C) To reposition the teeth during orthodontic treatment 
D) To act as a permanent retainer

Exam 60: Orthodontics

An anterior open bite refers to which condition?

Buccal arch wire tubes are located on which bands?

Which of the following is used to place elastic separators?

How is a patient instructed to clean under the arch wire?

In class _____ occlusion,or distoclusion,the mandibular arch and the body of the mandible are in bilateral,distal relationship to the maxillary teeth.

Severe malocclusion and dental facial deformities,both of which can cause social stigma and have a negative effect on a patient's self-esteem,are examples of which type of adversity?

Which instrument removes elastomeric ligature ties?

Which statement is incorrect about preparing a band for cementation?

What is overjet?

What is the purpose of the headgear tube?

During cementation of bands,where is the cement placed?

Which instrument is used in the placement of elastomeric ligature ties?

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

Which of the following is used to tie the arch wire into orthodontic brackets?

During the frontal evaluation of facial esthetics,why is the face examined?

Which condition occurs when the mandible is located ahead of the maxilla?

The orthodontic problems of most people come from an interaction of which of the following? (Select all that apply.)

When taking photographs,the full direct view includes what?

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

What is the purpose of an orthodontic positioner?

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