Deck 4: Dental Anatomy

Question 1

The mouth can be divided into four sections called:

A) arches
B) sextants
C) quadrants
D) dentitions

Answer 1

quadrants

Question 2

The Universal National System identifies primary teeth with the:

A) numbers 1 to 20
B) letters A to T
C) numbers 1 to 32
D) symbols with letters A to E

Answer 2

letters A to T

Question 3

The crown of the tooth is covered with:

A) enamel
B) dentin
C) cementum
D) bone

Answer 3

bone

Question 4

Which is NOT a component of the periodontium?

A) Cementum
B) Alveolar bone
C) Periodontal ligaments
D) Dentin

Question 5

Which statement is true?

A) At eruption, the pulp chamber is small, but it becomes larger with age.
B) Radicular pulp is found in the pulp horns of the tooth.
C) Weak pain stimuli in the pulp chamber usually goes unnoticed.
D) Coronal pulp passes through the apical foramen to the periapical area.

Question 6

Which tooth numbering system uses brackets?

A) Palmer Notation
B) Universal National
C) Federation Dentaire Internationale
D) International Standards Organization

Question 7

Which best describes cementum?

A) Gray-white
B) Translucent
C) Lustrous
D) Sensitive

Question 8

The tapered end of each root tip is known as the:

A) cervix
B) bifurcation
C) apex
D) apical foramen

Question 9

Which sextants contain canine teeth?

A) Maxillary and mandibular anterior
B) Maxillary right and left posterior
C) Mandibular right and left posterior
D) Mandibular and maxillary posterior and anterior

Question 10

The anatomic crown is:

A) shortest when the tooth first erupts in the oral cavity
B) the portion of the tooth that is visible in the mouth
C) the portion of the tooth covered with enamel
D) formed by the junction enamel and cementum

Question 11

The root of the tooth is covered with:

A) cementum
B) dentin
C) enamel
D) pulp

Question 12

Grinding food is a primary function of:

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

Question 13

Which is made of blood vessels and nerves?

A) Pulp
B) Cementum
C) Enamel
D) Dentin

Question 14

Which are NOT found in the primary dentition?

A) Incisors
B) Canines
C) Premolars
D) Molars

Question 15

The normal process of shedding or losing primary teeth is:

A) attrition
B) eruption
C) exfoliation
D) demineralization

Question 16

Which identifies the broad chewing surface of a molar?

A) Occlusal
B) Palatal
C) Incisal
D) Buccal

Question 17

The first primary teeth to erupt are:

A) first molars
B) second molars
C) lateral incisors
D) central incisors

Question 18

Tooth #8 of the Universal National System is which tooth in the International Standards Organization (ISO) System?

A) 18
B) 11
C) 21
D) 28

Question 19

Which teeth are the longest in the human dentition?

A) Incisors
B) Canines
C) Molars
D) Premolars

Question 20

How many teeth are in each quadrant of the permanent dentition?

A) 5
B) 6
C) 7
D) 8

Question 21

In the Universal numbering system, premolars, also known as cuspids, are numbered 6, 11, 22, and 27.

Question 22

The tooth surface closest to the tongue is termed ___________.

Question 23

Facial and lingual contours do NOT:

A) provide natural passageways for food
B) protect the gingiva from food impact during mastication
C) provide the gingiva with adequate, healthy stimulation
D) stabilize the dental arches by holding teeth in contact with each other

Question 24

The primary dentition contains ____ teeth. (Use numeric characters only in your answer.)

Question 25

The ___________ is the exact spot at which the teeth actually touch each other.

Question 26

Embedded portions of periodontal ligaments in cementum and bone that become mineralized are known as _____________.

Question 27

_________ makes up the main portion of the tooth structure and extends almost the entire length of the tooth.

Question 28

To assist in describing their locations and functions, the teeth are classified as being mesial and distal in the mouth.

Question 29

The permanent dentition period begins when the last permanent molar is shed, after approximately 10 years of age.

Question 30

Enamel consists of millions of __________ that extend from the surface of the tooth to the dentinoenamel junction.

Question 31

___________ is the contact between the maxillary and mandibular teeth in all mandibular positions and movements.

Question 32

Pain is transmitted into the pulp via _____________ that run through dentin tubules.

Question 33

The term _______ means without natural teeth.

Question 34

A ______ is the presence of some permanent and some primary teeth in a child.

Question 35

The shedding process of the primary teeth is properly called ________.

Question 36

The tooth surface closest to the lips is termed ___________.

Question 37

A(n) _________ is a triangular space near the gingiva between the proximal surfaces of two adjoining teeth.

Question 38

________ is the hardest material of the body.