Question 1

Using the Universal/National Teeth-Numbering System,what are the numbers for the permanent third molars?

Accepted Answer

A) 1, 16, 17, 32 
B) 3, 14, 19, 30 
C) 1, 2, 3, 4 
D) 2, 15, 18, 31 
A) 1, 16, 17, 32 
B) 3, 14, 19, 30 
C) 1, 2, 3, 4 
D) 2, 15, 18, 31

Question 2

An unusually large space between adjacent teeth is known as a:

Accepted Answer

A) cusp. 
B) mamelon. 
C) diastema. 
D) fossa. 
A) cusp. 
B) mamelon. 
C) diastema. 
D) fossa.

Question 3

In the Universal Numbering System,the maxillary permanent premolars are:

Accepted Answer

A) #4, #5, #12, and #13. 
B) #14, #15, #24, and #25. 
C) #20, #21, #28, and #29. 
D) #34, #35, #44, and #45. 
A) #4, #5, #12, and #13. 
B) #14, #15, #24, and #25. 
C) #20, #21, #28, and #29. 
D) #34, #35, #44, and #45.

Question 4

The primary dentition has _____ molars and _____ premolars.

Accepted Answer

A) 8; 0 
B) 12; 8 
C) 8; 4 
D) 4; 4 
A) 8; 0 
B) 12; 8 
C) 8; 4 
D) 4; 4

Question 5

There are how many incisors in each arch of the permanent dentitions?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
A) 2 
B) 4 
C) 6 
D) 8

Question 6

The primary teeth are classified in the Universal/National System using:

Accepted Answer

A) numbers 1 through 20. 
B) letters A through T. 
C) a number for each quadrant and a number for each tooth. 
D) numbers inside a bracket. 
A) numbers 1 through 20. 
B) letters A through T. 
C) a number for each quadrant and a number for each tooth. 
D) numbers inside a bracket.

Question 7

The _____ often appear as a developmental anomaly,differing in size,shape,contour,and relative position.

Accepted Answer

A) maxillary central incisors 
B) mandibular incisors 
C) mandibular first and second molars 
D) maxillary and mandibular third molars 
A) maxillary central incisors 
B) mandibular incisors 
C) mandibular first and second molars 
D) maxillary and mandibular third molars

Question 8

The _____ premolar has two bifurcated roots.

Accepted Answer

A) mandibular first 
B) maxillary first 
C) maxillary second 
D) mandibular second 
A) mandibular first 
B) maxillary first 
C) maxillary second 
D) mandibular second

Question 9

The developmental groove that extends mesiodistally and divides the occlusal table in half is the _____ groove.

Accepted Answer

A) marginal 
B) triangular 
C) central 
D) none of the above 
A) marginal 
B) triangular 
C) central 
D) none of the above

Question 10

There are ___ teeth in a quadrant of the primary dentition.

Accepted Answer

A) 5 
B) 10 
C) 20 
D) 8 
A) 5 
B) 10 
C) 20 
D) 8

Question 11

The first premolar is posterior to the _____ while the second premolar is anterior to the _____.

Accepted Answer

A) lateral incisor, second molar 
B) canine, first molar 
C) second premolar, first molar 
D) canine, first premolar 
A) lateral incisor, second molar 
B) canine, first molar 
C) second premolar, first molar 
D) canine, first premolar

Question 12

The largest and strongest teeth in the maxillary dentition are the maxillary:

Accepted Answer

A) first molars. 
B) second molars. 
C) canines. 
D) central incisors. 
A) first molars. 
B) second molars. 
C) canines. 
D) central incisors.

Question 13

The incisal surface of an anterior tooth is also known as the:

Accepted Answer

A) facial surface. 
B) labial surface. 
C) incisal edge. 
D) incisal ridge. 
A) facial surface. 
B) labial surface. 
C) incisal edge. 
D) incisal ridge.

Question 14

The smallest teeth in the permanent dentition are the:

Accepted Answer

A) maxillary lateral incisors. 
B) mandibular central incisors. 
C) mandibular canines. 
D) maxillary central incisors. 
A) maxillary lateral incisors. 
B) mandibular central incisors. 
C) mandibular canines. 
D) maxillary central incisors.

Question 15

A mandibular canine tooth:

Accepted Answer

A) usually erupts before the maxillary canine. 
B) has a larger and more developed cusp than the maxillary canine. 
C) has a sharper cusp tip than a maxillary canine. 
D) has a mesial cusp slope that is longer than the distal cusp slope when it first erupts, while the opposite is true for a maxillary canine tooth. 
A) usually erupts before the maxillary canine. 
B) has a larger and more developed cusp than the maxillary canine. 
C) has a sharper cusp tip than a maxillary canine. 
D) has a mesial cusp slope that is longer than the distal cusp slope when it first erupts, while the opposite is true for a maxillary canine tooth.

Question 16

Which statement is NOT true of the maxillary canines?

Accepted Answer

A) The maxillary canines are usually the last permanent anterior teeth to erupt. 
B) The canines have incisal edges similar to other anterior teeth. 
C) The crown of the maxillary canine is in longer than the crown of the mandibular canine. 
D) The cusp tip is sharper on a maxillary canine than on a mandibular canine. 
A) The maxillary canines are usually the last permanent anterior teeth to erupt. 
B) The canines have incisal edges similar to other anterior teeth. 
C) The crown of the maxillary canine is in longer than the crown of the mandibular canine. 
D) The cusp tip is sharper on a maxillary canine than on a mandibular canine.

Question 17

In the Universal Numbering System,the four first permanent molars are:

Accepted Answer

A) #16, #26, #36, and #46. 
B) #2, #15, #18, and #31. 
C) #3, #14, #19, and #30. 
D) #18, #28, #38, and #48. 
A) #16, #26, #36, and #46. 
B) #2, #15, #18, and #31. 
C) #3, #14, #19, and #30. 
D) #18, #28, #38, and #48.

Question 18

The root of the maxillary lateral incisor:

Accepted Answer

A) is the same width as the root of the maxillary central incisor. 
B) may curve slightly to the distal. 
C) is a bifurcated root. 
D) is the same size as the root of the mandibular lateral incisor. 
A) is the same width as the root of the maxillary central incisor. 
B) may curve slightly to the distal. 
C) is a bifurcated root. 
D) is the same size as the root of the mandibular lateral incisor.

Question 19

There are no ______ in the primary dentition.

Accepted Answer

A) incisors 
B) canines 
C) premolars 
D) molars 
A) incisors 
B) canines 
C) premolars 
D) molars

Question 20

The _____ are sometimes referred to as "wisdom" teeth.

Accepted Answer

A) first molars 
B) premolars 
C) third molars 
D) canines 
A) first molars 
B) premolars 
C) third molars 
D) canines

Exam 12: Tooth Morphology

Using the Universal/National Teeth-Numbering System,what are the numbers for the permanent third molars?

An unusually large space between adjacent teeth is known as a:

In the Universal Numbering System,the maxillary permanent premolars are:

The primary dentition has _____ molars and _____ premolars.

There are how many incisors in each arch of the permanent dentitions?

The primary teeth are classified in the Universal/National System using:

The _____ often appear as a developmental anomaly,differing in size,shape,contour,and relative position.

The _____ premolar has two bifurcated roots.

The developmental groove that extends mesiodistally and divides the occlusal table in half is the _____ groove.

There are ___ teeth in a quadrant of the primary dentition.

The first premolar is posterior to the _____ while the second premolar is anterior to the _____.

The largest and strongest teeth in the maxillary dentition are the maxillary:

The incisal surface of an anterior tooth is also known as the:

The smallest teeth in the permanent dentition are the:

A mandibular canine tooth:

Which statement is NOT true of the maxillary canines?

In the Universal Numbering System,the four first permanent molars are:

The root of the maxillary lateral incisor:

There are no ______ in the primary dentition.

The _____ are sometimes referred to as "wisdom" teeth.

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

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

Orthodontics

The primary dentition has _ molars and _ premolars.

The first premolar is posterior to the _ while the second premolar is anterior to the _.