Question 1

A hook is used to:

Accepted Answer

A) attach a bracket to a tooth. 
B) hold interarch elastics. 
C) stabilize the ends of a facebow. 
D) none of the above. 
A) attach a bracket to a tooth. 
B) hold interarch elastics. 
C) stabilize the ends of a facebow. 
D) none of the above. B

Question 2

Removal of bands may be accomplished with a(n):

Accepted Answer

A) band seater. 
B) explorer. 
C) bird-beak pliers. 
D) band-removing pliers. 
A) band seater. 
B) explorer. 
C) bird-beak pliers. 
D) band-removing pliers. D

Question 3

After preparing the tooth for bonding brackets,the sealant is placed on the ____ and the bonding material on the _____.

Accepted Answer

A) bracket; bracket 
B) tooth; tooth 
C) bracket; tooth 
D) tooth; bracket 
A) bracket; bracket 
B) tooth; tooth 
C) bracket; tooth 
D) tooth; bracket D

Question 4

In orthodontics,a(n) _____ x-ray is taken to study and make measurements of the skull and analyze growth patterns.

Accepted Answer

A) panoramic 
B) cephalometric 
C) bitewing 
D) occlusal 
A) panoramic 
B) cephalometric 
C) bitewing 
D) occlusal

Question 5

Foods that should be avoided by patients with fixed appliances include:

Accepted Answer

A) chewing gum. 
B) sticky foods. 
C) popcorn. 
D) all of the above. 
A) chewing gum. 
B) sticky foods. 
C) popcorn. 
D) all of the above.

Question 6

Beyond the age of ____,thumb and finger sucking will affect the upper facial structure and upper anterior teeth.

Accepted Answer

A) two 
B) three 
C) five 
D) seven 
A) two 
B) three 
C) five 
D) seven

Question 7

The orthodontic problems of most people come from an interaction of which of the following?
1)Developmental
2)Genetic
3)Environmental
4)Functional influences

Accepted Answer

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

Question 8

The condition in which the mandible is located ahead of the maxilla is frequently called:

Accepted Answer

A) overbite. 
B) underbite. 
C) retrusion. 
D) centric relation. 
A) overbite. 
B) underbite. 
C) retrusion. 
D) centric relation.

Question 9

What instrument is used to cut ligature ties when removing an arch wire?

Accepted Answer

A) Ligature cutters 
B) Mosquito forceps 
C) Explorer 
D) Band removing pliers 
A) Ligature cutters 
B) Mosquito forceps 
C) Explorer 
D) Band removing pliers

Question 10

The arch wire is:

Accepted Answer

A) a pattern that gives the dental arch its shape. 
B) used to hold interarch elastics. 
C) bonded directly to the teeth. 
D) used to stabilize the ends of a facebow. 
A) a pattern that gives the dental arch its shape. 
B) used to hold interarch elastics. 
C) bonded directly to the teeth. 
D) used to stabilize the ends of a facebow.

Question 11

After ligature ties are cut,the assistant should not:

Accepted Answer

A) tuck them toward the gingival. 
B) tuck them toward the occlusal. 
C) run a finger over then to check for comfort. 
D) tuck them in the interproximal space. 
A) tuck them toward the gingival. 
B) tuck them toward the occlusal. 
C) run a finger over then to check for comfort. 
D) tuck them in the interproximal space.

Question 12

A headgear appliance is:

Accepted Answer

A) an orthopedic device. 
B) composed of two parts. 
C) used to move the maxillary first molar distally. 
D) all of the above. 
A) an orthopedic device. 
B) composed of two parts. 
C) used to move the maxillary first molar distally. 
D) all of the above.

Question 13

Dental arch wires are held in place by:

Accepted Answer

A) ligature ties. 
B) dental cement. 
C) elastomeric ties. 
D) both a and c. 
A) ligature ties. 
B) dental cement. 
C) elastomeric ties. 
D) both a and c.

Question 14

Which of the following choices represents a developmental cause of orthodontic problems?

Accepted Answer

A) interference with eruption 
B) jaw size discrepancy 
C) fetal molding 
D) damage to permanent tooth buds when an injury to primary teeth has occurred 
A) interference with eruption 
B) jaw size discrepancy 
C) fetal molding 
D) damage to permanent tooth buds when an injury to primary teeth has occurred

Question 15

The type of arch wire that is not used to position the crown and root of the teeth in final stages of treatment is:

Accepted Answer

A) round. 
B) square. 
C) rectangular. 
D) all are used. 
A) round. 
B) square. 
C) rectangular. 
D) all are used.

Question 16

An orthodontic positioner is designed to:

Accepted Answer

A) move the teeth. 
B) retain the teeth in their desired position. 
C) reposition the teeth during orthodontic treatment. 
D) both a and c. 
A) move the teeth. 
B) retain the teeth in their desired position. 
C) reposition the teeth during orthodontic treatment. 
D) both a and c.

Question 17

To floss under the arch wire,the patient should be instructed to use:

Accepted Answer

A) an interproximal brush. 
B) floss threader. 
C) a Waterpik. 
D) all of the above. 
A) an interproximal brush. 
B) floss threader. 
C) a Waterpik. 
D) all of the above.

Question 18

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) none of the above 
A) I 
B) II 
C) III 
D) none of the above

Question 19

The habit that may be a result of narrowing of the maxilla is:

Accepted Answer

A) bruxism. 
B) tongue thrusting. 
C) mouth breathing. 
D) all of the above. 
A) bruxism. 
B) tongue thrusting. 
C) mouth breathing. 
D) all of the above.

Question 20

In preparation for the bonding of brackets the teeth are:

Accepted Answer

A) isolated using cotton rolls or retractors. 
B) polished using a fluoride free paste. 
C) etched, rinsed, and dried. 
D) all of the above. 
A) isolated using cotton rolls or retractors. 
B) polished using a fluoride free paste. 
C) etched, rinsed, and dried. 
D) all of the above.

Exam 60: Orthodontics

A hook is used to:

Removal of bands may be accomplished with a(n):

After preparing the tooth for bonding brackets,the sealant is placed on the ____ and the bonding material on the _____.

In orthodontics,a(n) _____ x-ray is taken to study and make measurements of the skull and analyze growth patterns.

Foods that should be avoided by patients with fixed appliances include:

Beyond the age of ____,thumb and finger sucking will affect the upper facial structure and upper anterior teeth.

The orthodontic problems of most people come from an interaction of which of the following? 1)Developmental 2)Genetic 3)Environmental 4)Functional influences

The condition in which the mandible is located ahead of the maxilla is frequently called:

What instrument is used to cut ligature ties when removing an arch wire?

The arch wire is:

After ligature ties are cut,the assistant should not:

A headgear appliance is:

Dental arch wires are held in place by:

Which of the following choices represents a developmental cause of orthodontic problems?

The type of arch wire that is not used to position the crown and root of the teeth in final stages of treatment is:

An orthodontic positioner is designed to:

To floss under the arch wire,the patient should be instructed to use:

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

The habit that may be a result of narrowing of the maxilla is:

In preparation for the bonding of brackets the teeth are:

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

After preparing the tooth for bonding brackets,the sealant is placed on the and the bonding material on the _.