Deck 11: Overview of the Dentitions

Question 1

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

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

Answer 1

Canines

Question 2

Which of the following surfaces of the maxillary anterior teeth do you mainly see when someone smiles?

A)Facial
B)Lingual
C)Mesial
D)Distal

Answer 2

Facial

Question 3

The mixed dentition period ends when which of the following teeth is lost?

A)Primary maxillary central incisor
B)Primary mandibular central incisor
C)Primary maxillary second molar
D)Primary mandibular second molar

Answer 3

Primary maxillary second molar

Question 4

The anterior teeth include the:

A)incisors and canines.
B)incisors, canines, and premolars.
C)canines and premolars.
D)premolars and molars.

Question 5

The relationship between the maxillary and mandibular teeth during biting and chewing movements is:

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

Question 6

Which type of teeth are not found in the primary dentition?

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

Question 7

In Angle class ____ occlusion,the mesiobuccal cusp of the permanent maxillary first molar occludes with the mesiobuccal groove of the mandibular first molar.

A)I
B)II
C)III
D)IV

Question 8

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

A)With overcontouring, the gingiva can 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 broadens toward the cervical line.
D)A convex surface is curved outward.

Question 9

How many nonsuccedaneous teeth are there in the adult dentition?

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

Question 10

The initiation of the mixed dentition period is marked by which of the following events?

A)Eruption of the adult mandibular first molar
B)Eruption of the adult mandibular central incisor
C)Loss of the primary mandibular central incisor
D)Loss of the primary first molar

Question 11

The human mouth is divided into two dental:

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

Question 12

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

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

Question 13

Which of the following is the preferred term for bicuspid?

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

Question 14

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

A)19.
B)36.
C)46.
D)73.

Question 15

There are _____ molar teeth in the primary dentition.

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

Question 16

The mouth can be divided into six sections called:

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

Question 17

The primary 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 18

When the Palmer Notation System (PNS)is used:

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)each of the four quadrants is given its own tooth bracket made up of a vertical and a horizontal line.
D)primary teeth are lettered with capital letters from A to T.

Question 19

The tooth numbering system most often used in the United States is the ______ system.

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

Question 20

Which of the following describes the maximal stable contact between the occluding surfaces of the maxillary and mandibular teeth?

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

Question 21

The premolars are a cross between canines and:

A)central incisors.
B)lateral incisors.
C)bicuspids.
D)molars.

Question 22

Permanent _____ are nonsuccedaneous teeth.

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

Question 23

Which of the following surfaces is closest to the tongue?

A)Incisal
B)Facial
C)Distal
D)Lingual

Question 24

The two tooth surfaces that are proximal surfaces are the mesial and:

A)distal.
B)labial.
C)incisal.
D)palatal.

Question 25

Which of the following describes the natural teeth in the dental arch?

A)Deciduous
B)Dentition
C)Embrasure
D)Succedaneous

Question 26

The _____ surface is the chewing surface on anterior teeth.

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

Question 27

Which term is used to describe the period when both primary teeth and permanent teeth are present at the same time in the oral cavity?

A)Primary
B)Mixed
C)Permanent
D)Rudimentary

Question 28

Which of the following teeth are posterior teeth?

A)Incisors and canines
B)Canines and premolars
C)Premolars and molars
D)Incisors and molars

Question 29

The lower teeth are set in the:

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

Question 30

Which of the following surfaces is the chewing surface of posterior teeth?

A)Labial
B)Lingual
C)Occlusal
D)Proximal

Question 31

How many quadrants are there in the maxillary dentition?

A)1
B)2
C)3
D)4

Question 32

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)All premolars have two cusps.
D)The premolars are used primarily for chewing and grinding food.

Question 33

The temporomandibular joint permits movement of the:

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

Question 34

Which of the following terms describes the permanent teeth that replace primary teeth?

A)Deciduous
B)Dentition
C)Embrasure
D)Succedaneous

Question 35

Which tooth is found only in the permanent dentition?

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

Question 36

Incisors:

A)are posterior teeth.
B)exist only in the primary dentition.
C)have multiple roots.
D)have shovel shaped lingual surfaces.

Question 37

Which of the following anatomic features of the teeth help to maintain their position in the dental arch and protect the tissues during chewing?

A)Pulp tissue
B)Dentin
C)Contours, contacts, and embrasures
D)Enamel epithelium

Question 38

Each quadrant of the permanent dentition contains how many teeth?

A)32
B)16
C)8
D)5

Question 39

The correct order of the teeth from mesial to distal in the permanent dentition is:

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

Question 40

The tooth surface closest to the cheek on posterior teeth is the _____ surface.

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

Question 41

If a dentist uses the ISO numbering system and charts #11,#12,#13,#54,and #18 teeth as being present in the patient's mouth,approximately what is the age of the patient?

A)5 to 6
B)6 to 7
C)8 to 9
D)10 to 12

Question 42

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

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

Question 43

A proper contact between adjacent teeth stabilizes the dental arches by:

A)preventing food from being trapped between the teeth.
B)holding teeth in positive contact with each other.
C)protecting the interproximal gingival tissue from trauma during chewing.
D)stretching the periodontal ligament fibers.

Question 44

Which of the following refers to an abnormal relationship when the teeth are maximally occluded?

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

Question 45

The crown of a tooth that is divided lengthwise 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 46

The primary teeth are identified using letters and the permanent teeth are identified using numbers with which of the following tooth numbering systems?

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