Question 1

Which of the following is a rounded,raised area on the cervical third of the lingual surface of anterior teeth?

Accepted Answer

A) Cingulum 
B) Fossa 
C) Mamelons 
D) Marginal ridge 
A) Cingulum 
B) Fossa 
C) Mamelons 
D) Marginal ridge

Question 2

The root of the mandibular second premolar is ______ than the roots of the maxillary premolars,but ______ than that of a mandibular first premolar.

Accepted Answer

A) smaller; longer 
B) smaller; shorter 
C) longer; shorter 
D) shorter; longer 
A) smaller; longer 
B) smaller; shorter 
C) longer; shorter 
D) shorter; longer

Question 3

Which of the following teeth are usually the last teeth to be lost?

Accepted Answer

A) Lateral incisors 
B) Central incisors 
C) Canines 
D) Third molars 
A) Lateral incisors 
B) Central incisors 
C) Canines 
D) Third molars

Question 4

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

Accepted Answer

A) 1, 16, 17, 32 
B) 3, 14, 19, 30 
C) 6, 11, 22, 27 
D) 2, 15, 18, 31 
A) 1, 16, 17, 32 
B) 3, 14, 19, 30 
C) 6, 11, 22, 27 
D) 2, 15, 18, 31

Question 5

Which of the following teeth have has a fifth supplemental cusp?

Accepted Answer

A) Premolars 
B) Central incisors 
C) Maxillary first molars 
D) Maxillary second molars 
A) Premolars 
B) Central incisors 
C) Maxillary first molars 
D) Maxillary second molars

Question 6

Which of the following teeth are the smallest and most symmetric teeth in the permanent dentition?

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 7

How many premolars are 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 8

Which of the following teeth 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

Question 9

Which of the following features of the posterior permanent dentition is associated with the termination of triangular grooves?

Accepted Answer

A) Central fossa 
B) Triangular fossa 
C) Central groove 
D) Inclined cuspal plane 
A) Central fossa 
B) Triangular fossa 
C) Central groove 
D) Inclined cuspal plane

Question 10

The ________ play an important role in a person's appearance.

Accepted Answer

A) molars 
B) posterior teeth 
C) premolars 
D) anterior teeth 
A) molars 
B) posterior teeth 
C) premolars 
D) anterior teeth

Question 11

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

Accepted Answer

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

Question 12

Which of the following teeth in the permanent dentition will replace the primary first molars?

Accepted Answer

A) First molars 
B) First and second molars 
C) First premolars 
D) Second premolars 
A) First molars 
B) First and second molars 
C) First premolars 
D) Second premolars

Question 13

The mandibular central incisors are:

Accepted Answer

A) larger than the maxillary lateral incisors. 
B) larger than the maxillary canines. 
C) larger than the mandibular canines. 
D) smaller than the mandibular lateral incisors. 
A) larger than the maxillary lateral incisors. 
B) larger than the maxillary canines. 
C) larger than the mandibular canines. 
D) smaller than the mandibular lateral incisors.

Question 14

The maxillary second premolar differs from the maxillary first premolar in that the:

Accepted Answer

A) cusps of second premolars are sharper than those of first premolars. 
B) first premolar is more narrow buccolingually than mesiodistally. 
C) lingual cusp is smaller than the buccal cusp on the maxillary second premolar. 
D) maxillary second premolar usually has one root. 
A) cusps of second premolars are sharper than those of first premolars. 
B) first premolar is more narrow buccolingually than mesiodistally. 
C) lingual cusp is smaller than the buccal cusp on the maxillary second premolar. 
D) maxillary second premolar usually has one root.

Question 15

Which of the following teeth vary more in form more than any other teeth in the mouth?

Accepted Answer

A) Maxillary lateral incisors 
B) Mandibular canines 
C) Maxillary central incisors 
D) Second molars 
A) Maxillary lateral incisors 
B) Mandibular canines 
C) Maxillary central incisors 
D) Second molars

Question 16

There are _____ teeth in each arch of the primary dentition.

Accepted Answer

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

Question 17

The developmental groove that crosses marginal ridges and allows food to escape during mastication is the _____ groove.

Accepted Answer

A) marginal 
B) triangular 
C) central 
D) supplemental 
A) marginal 
B) triangular 
C) central 
D) supplemental

Question 18

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 lingual surface of the crown of the maxillary canine is smoother than that 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 lingual surface of the crown of the maxillary canine is smoother than that of the mandibular canine. 
D) The cusp tip is sharper on a maxillary canine than on a mandibular canine.

Question 19

Which of the following types of teeth in the primary dentition are replaced by first premolars in the adult dentition?

Accepted Answer

A) Incisors 
B) Canines 
C) First primary molar 
D) Second primary molar 
A) Incisors 
B) Canines 
C) First primary molar 
D) Second primary molar

Question 20

Which of the following teeth are the largest and strongest maxillary teeth?

Accepted Answer

A) First molars 
B) Second molars 
C) Canines 
D) Central incisors 
A) First molars 
B) Second molars 
C) Canines 
D) Central incisors

Exam 12: Tooth Morphology

Which of the following is a rounded,raised area on the cervical third of the lingual surface of anterior teeth?

The root of the mandibular second premolar is ______ than the roots of the maxillary premolars,but ______ than that of a mandibular first premolar.

Which of the following teeth are usually the last teeth to be lost?

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

Which of the following teeth have has a fifth supplemental cusp?

Which of the following teeth are the smallest and most symmetric teeth in the permanent dentition?

How many premolars are in each arch of the permanent dentitions?

Which of the following teeth are sometimes referred to as wisdom teeth?

Which of the following features of the posterior permanent dentition is associated with the termination of triangular grooves?

The ________ play an important role in a person's appearance.

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

Which of the following teeth in the permanent dentition will replace the primary first molars?

The mandibular central incisors are:

The maxillary second premolar differs from the maxillary first premolar in that the:

Which of the following teeth vary more in form more than any other teeth in the mouth?

There are _____ teeth in each arch of the primary dentition.

The developmental groove that crosses marginal ridges and allows food to escape during mastication is the _____ groove.

Which statement is not true of the maxillary canines?

Which of the following types of teeth in the primary dentition are replaced by first premolars in the adult dentition?

Which of the following teeth are the largest and strongest maxillary 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

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Removable Prosthodontics

Dental Implants

Endodontics

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Orthodontics

The root of the mandibular second premolar is than the roots of the maxillary premolars,but than that of a mandibular first premolar.