Deck 11: Overview of the Dentitions

Question 1

The relationship between the maxillary and mandibular teeth when the jaws are in a fully closed position is:

A)occlusion.
B)closure.
C)interproximal.
D)functional closure.

Answer 1

occlusion.

Question 2

Which of the following is true of the Palmer Notation System (PNS)?

A)The permanent teeth are numbered from 1 to 32. Numbering begins with the upper-right third molar, works around to the upper-left third molar, drops to the lower-left third molar, and works around to the lower-right third molar.
B)The first digit indicates the quadrant, and the second digit indicates the tooth within the quadrant, with numbering from the midline to the posterior.
C)The First digit indicates the quadrant, and the second digit indicates the tooth within the quadrant, with numbering from the midline to the posterior.
D)Each of the four quadrants is given its own tooth bracket made up of a vertical and a horizontal line.

Answer 2

Each of the four quadrants is given its own tooth bracket made up of a vertical and a horizontal line.

Question 3

The anterior teeth include the:

A)premolars.
B)incisors.
C)canines.
D)b and c.

Answer 3

b and c.

Question 4

_____ are the longest teeth in the human dentition and are used for cutting and tearing.

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

Question 5

The jaw position that produces maximal stable contact between the occluding surfaces of the maxillary and mandibular teeth is:

A)functional occlusion.
B)malocclusion.
C)basic occlusion.
D)centric occlusion.

Question 6

The mouth can be divided into four sections called:

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

Question 7

The human mouth is divided into two sections,or arches,called the:

A)quadrants.
B)maxillary arch.
C)mandibular arch.
D)b and c.

Question 8

The key to Angle's classification system for occlusion and malocclusion is:

A)the premolars.
B)TMJ alignment.
C)the permanent maxillary first molars.
D)the primary dentition.

Question 9

The mixed dentition period begins with:

A)eruption of the first permanent tooth.
B)eruption of the first permanent maxillary central incisor.
C)loss of the first primary central incisor.
D)loss of the first primary molar.

Question 10

The permanent dentition period begins at about 12 years of age when the:

A)last primary tooth is lost.
B)12-year molars erupt.
C)third molars come in.
D)jaws stop growing.

Question 11

Every tooth in the mouth has five surfaces,the:.

A)mesial, distal, lingual, labial, and facial.
B)mesial, distal, facial, lingual, and masticatory (occlusal or incisal).
C)buccal, labial, lingual, masticatory (occlusal or incisal), and distal.
D)facial, lingual, buccal, labial, and mesial.

Question 12

The permanent teeth are _____ in the Universal/National System.

A)numbered 1 to 32
B)lettered
C)numbered by quadrant
D)numbered with the maxillary central incisors as 18 and 28

Question 13

Which tooth-numbering system is used most often in the United States?

A)Palmer Notation System
B)Universal/National System
C)International Standards Organization System
D)Fédération Dentaire Internationale System

Question 14

According to the ISO/FDI numbering system,an adult mandibular left first molar would be tooth number:

A)19.
B)23.
C)36.
D)73.

Question 15

There are _____ succedaneous teeth.

A)32
B)24
C)12
D)20

Question 16

_____ are used for chewing and grinding food.

A)Molars
B)Canines
C)Premolars
D)Both a and c

Question 17

The four types of teeth are _________,and molars.

A)incisors, canines, premolars
B)incisors, cuspids, canines
C)centrals, laterals, premolars
D)centrals, canines, bicuspids

Question 18

There are _____ teeth in the primary dentition.

A)24
B)32
C)20
D)28

Question 19

Which of the following statements is true of the contours of teeth?

A)With overcontouring, the gingiva may be traumatized by food pushing against it.
B)With undercontouring, the gingiva will lack adequate stimulation and be difficult to clean.
C)The crown of the tooth narrows toward the cervical line.
D)A convex surface is curved inward.

Question 20

The area where the mesial or distal surfaces of the tooth touch the adjacent tooth in the arch is the:

A)embrasure
B)contact point.
C)contact area.
D)point angle.

Question 21

The _____ surface is the chewing surface on both anterior and posterior teeth.

A)incisal
B)occlusal
C)masticatory
D)lingual

Question 22

The facial surface closest to the lips is the _____ surface.

A)labial
B)lingual
C)masticatory
D)proximal

Question 23

Which type of tooth is not in the primary dentition but found only in the permanent dentition?

A)Incisor
B)Canine
C)Premolar
D)Molar

Question 24

If the dentition is divided into sextants instead of quadrants,how many sextants are there in each arch?

A)3
B)6
C)9
D)12

Question 25

The natural teeth in the dental arch are the:

A)deciduous.
B)dentition.
C)embrasure.
D)succedaneous.

Question 26

The upper teeth are set in the:

A)zygomatic.
B)maxilla.
C)mandible.
D)mentalis.

Question 27

Which permanent teeth are nonsuccedaneous teeth?

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

Question 28

The anatomic features of the teeth help:

A)maintain their position in the dental arch.
B)protect the tissues during chewing..
C)do both a and b.
D) do neither a nor b.

Question 29

Each quadrant of the permanent dentition contains _____ teeth,whereas each quadrant of the primary dentition contains _____ teeth.

A)32; 20
B)16; 10
C)8; 5
D)10; 16

Question 30

The first set of primary teeth is also referred to as _____ teeth.

A)deciduous
B)dentition
C)embrasure
D)succedaneous

Question 31

The terms labial and buccal can be substituted for:

A)incisal.
B)facial.
C)distal.
D)lingual.

Question 32

The mandibular arch is movable through the action of the:

A)temporomandibular joint.
B)maxilla.
C)gomphosis.
D)cartilaginous joint.

Question 33

Which is the correct order of the teeth from anterior to posterior in the permanent dentition?

A)Molars, premolars, canines, incisors
B)Incisors, canines, premolars, molars
C)Canines, incisors, premolars, molars
D)Incisors, premolars, canines, molars

Question 34

The two tooth surfaces that are proximal surfaces are the _____ and the _____.

A)mesial; distal
B)labial; lingual
C)incisal; occlusal
D)palatal; masticatory

Question 35

The canines are also known as:

A)laterals.
B)bicuspids.
C)cuspids.
D)none of the above.

Question 36

Which dentition takes place between 6 to 12 years of age and exhibits both primary teeth and permanent teeth in the oral cavity at the same time?

A)Primary
B)Permanent
C)Mixed
D)None of the above

Question 37

The tooth surface closest to the tongue on both the anterior and posterior teeth is the:

A)incisal.
B)buccal.
C)palatal.
D)lingual.

Question 38

The posterior teeth include the _____ and the _____.

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

Question 39

Incisors:

A)are anterior teeth.
B)exist only in the primary dentition.
C)are designed to cut food.
D)both a and c.

Question 40

Which statement is not true of the premolars?

A)They are also referred to as bicuspids.
B)There are eight premolars in the permanent dentition.
C)There are four premolars in the primary dentition.
D)The premolars are used primarily for chewing and grinding food.

Question 41

The crown of a tooth that is divided crosswise with the division being parallel to the occlusal or incisal surface of the tooth has which of the following divisions?

A)Mesial third, middle third, and distal third
B)Occlusal third, middle third, and cervical third
C)Facial third, middle third, and lingual third
D)Incisal third, middle third, and lingual third

Question 42

_____ is the standard for normal occlusion.

A)Centric occlusion
B)Functional occlusion
C)Physiologic occlusion
D)Malocclusion

Question 43

If a dentist uses the ISO numbering system and charts #11,#12,#53,#54,and #18 teeth as being present in the patient's mouth,approximately what is the age of the patient?

A)5 to 6 years old
B)6 to 7 years old
C)8 to 9 years old
D)12 to 13 years old

Question 44

In the Universal/National System,the primary teeth are identified using _____ and the permanent teeth are identified using _____.

A)brackets with letters; brackets with numbers
B)letters A to T; numbers 1 to 32
C)numbers 1 to 32; letters A to T
D)letters A to E; numbers 1 to 8

Question 45

Correct contact between adjacent teeth is important because proper contact:

A)helps prevent food from being trapped between the teeth.
B)stabilizes the dental arch by holding teeth in positive contact with each other.
C)protects the interproximal gingival tissue from trauma during chewing.
D)does all of the above.

Question 46

The exact spot where adjacent teeth actually touch each other is the:

A)contour.
B)contact area.
C)height of contour.
D)contact point.