Deck 15: Overview of Dentitions

Question 1

Which tooth designation system is most commonly used during orthodontic therapy?

A) Palmer Notation Method
B) Universal Tooth Designation System
C) International Standards Organization Designation System
D) Either the Palmer or Universal systems

Answer 1

Palmer Notation Method

Question 2

The division of each dental arch into three parts is based on the relationship to the:

A) midline.
B) most posterior tooth.
C) tongue.
D) lips.

Answer 2

midline.

Question 3

Which of the following statements is correct when discussing the proximal height of contour of a tooth?

A) Located on the facial and lingual surfaces
B) Usually located at the contact area
C) Area of least contour on a tooth surface
D) Also considered the cementoenamel junction

Answer 3

Usually located at the contact area

Question 4

Which of the following terms describes an area of the crown where three surfaces join?

A) Proximal surface
B) Height of contour
C) Line angle
D) Point angle

Question 5

Which of the following characteristics is noted in a patient during the primary dentition period as compared with the permanent dentition period?

A) Larger overall crowns
B) Lighter enamel color
C) Longer roots
D) Greater number of teeth

Question 6

Which of the following surfaces of a tooth are not difficult to access during dental procedures as well as home care?

A) Facial or lingual surfaces
B) Line angles
C) Proximal surfaces
D) Interproximal space

Question 7

An older dental term for primary teeth is the _____ dentition.

A) succedaneous
B) second
C) deciduous
D) mixed

Question 8

Which of the following is an imaginary line representing the long axis of a tooth?

A) Midline
B) Ridge
C) Root axis line
D) Sextant

Question 9

How do the incisors function during mastication?

A) Piercing and tearing food
B) Assisting canines with food
C) Biting and cutting food
D) Grinding food

Question 10

Which are considered transitional teeth in the permanent dentition?

A) Incisors
B) Canines
C) First molars
D) Second molars

Question 11

Which of the following is considered a masticatory surface on a tooth?

A) Lingual surface
B) Palatal surface
C) Incisive surface
D) Buccal surface

Question 12

How do the molars function during mastication?

A) Piercing and tearing food
B) Assisting canines with food
C) Biting and cutting food
D) Grinding food

Question 13

The period of time that occurs between 6 and 12 years of age is the ____ dentition period.

A) mixed
B) primary
C) permanent
D) secondary

Question 14

What are the linear elevations located on the masticatory surfaces of both anterior and posterior teeth?

A) Root concavities
B) Ridges
C) Cusps
D) Embrasures

Question 15

When comparing the arches of the two dentitions,one arch of the primary dentition usually contains:

A) two more incisors.
B) four more total teeth.
C) four fewer molars.
D) six fewer total teeth.

Question 16

The tooth surface that is toward the midline of the oral cavity is the:

A) distal.
B) mesial.
C) lingual.
D) buccal.

Question 17

Which part of the tooth is covered by enamel and remains constant even if the patient undergoes gingival recession?

A) Anatomical crown
B) Clinical crown
C) Anatomical root
D) Clinical root

Question 18

Which of the following divides each dental arch into quadrants?

A) Cervical line
B) Midline
C) Line angle
D) Point angle

Question 19

When two teeth in the same arch come into contact,the curvatures next to the contact areas form spaces considered:

A) line angles.
B) point angles.
C) height of contours.
D) embrasures.

Question 20

The cementoenamel junction tooth is located at the border of the ____ third of the root.

A) horizontal
B) middle
C) cervical
D) apical

Question 21

Which of the following teeth is the first permanent tooth to erupt into the oral cavity,usually signaling the end of the primary dentition period?

A) Maxillary central incisor
B) Mandibular central incisor
C) Maxillary first molar
D) Mandibular first molar

Question 22

During which dentition period may home care become difficult due to crowding that promotes dental biofilm retention?

A) Primary dentition period
B) Mixed dentition period
C) Permanent dentition period
D) Both primary and permanent dentition periods

Question 23

Which of the following usually signals the end of the mixed dentition period?

A) Eruption of first primary tooth
B) Eruption of first permanent tooth
C) Shedding of first primary tooth
D) Shedding of last primary tooth

Question 24

Which of the following is the tooth designation system that uses the digits 1 through 32?

A) Universal Numbering System
B) Palmer Notation Method
C) International Numbering System
D) Military Tooth Numbering System

Question 25

Which term is used to describe the method by which the teeth of the mandibular arch come into contact with those of the maxillary arch?

A) Embrasures
B) Occlusion
C) Palmer Notation Method
D) Ridges or cusps