Nomenclature

Question 1

What is the term to describe the natural teeth that are located in the maxillary or mandibular aches?

Answer 1

dentition

Question 2

Teeth that are shed or exfoliated have what type of dentition?

Answer 2

primary or deciduous (20 testh)

Question 3

What type of dentition do the 32 adult teeth have?

Answer 3

permanent dentition

Question 4

What is the name of the permanent teeth that replace the primary teeth?

Answer 4

succedaneous teeth

Question 5

What type of dentition is present during the transition period between primary and permanent dentition?

Answer 5

mixed dentition

Question 6

What teeth are located in each quadrant of the mouth that contains primary dentition?

Answer 6

central incisor 
lateral incisor 
canine 
first molar 
second molar

Question 7

How many primary teeth are there?

Answer 7

20

Question 8

How are primary teeth names?

Answer 8

Lettered A to T beginning w/ primary maxillary R 2nd molar

Question 9

What teeth are located in each quadrant of the mouth that contains permanent dentition?

Answer 9

central incisor 
lateral incisor 
canine 
first premolar/bicuspid 
second premolar/bicuspid 
first, second, third molar

Question 10

How are teeth with permanent dentition numbered?

Answer 10

#1 maxillary R 3rd molar 
#6 maxillary L 3rd molar 
#17 mandibular L 3rd molar 
#32 mandibular R 3rd molar

Question 11

What is the anatomical crown?

Answer 11

portion of the tooth covered by enamel, fixed size

Question 12

What is the portion of the tooth that is clinically visible?

Answer 12

Clinical crown

Question 13

How does the clinical crown change with age?

Answer 13

As the patient gets older the clinical crown gets larger as part of the root is exposed

Question 14

What is the surface of the tooth that is closest to the midline?

Answer 14

mesial

Question 15

Where is the distal surface of the tooth located?

Answer 15

farthest from the midline

Question 16

What are the 2 types of facial tooth surfaces and where do reside?

Answer 16

labial: anterior teeth
buccal: posterior teeth

Question 17

Where is the lingual surface of the tooth?

Answer 17

portion of the tooth closest to the tounge

Question 18

Palatal surfaces are used to describe what types of surfaces?

Answer 18

maxillary lingual surfaces of posterior teeth

Question 19

What is the name of the biting chewing surfaces? What teeth have this surface?

Answer 19

Occlusal - only on posterior teeth

Question 20

What is the name of the biting surface of the anterior teeth?

Answer 20

Incisal

Question 21

Labial/Facial surfaces are only on what type of teeth?

Answer 21

Canine or incisors

Question 22

What type of teeth have an incisal ridge?

Answer 22

anterior teeth

Question 23

What is the term to describe the sides of the teeth? What surfaces does it compose?

Answer 23

Axial surfaces - mesial, distal, facial, lingual

Question 24

What is the proximal surface of a tooth?

Answer 24

the touching of mesial/distal surfaces adjacent teeth

Question 25

What is the proximal surface of the central incisors?

Answer 25

2 mesial surfaces contact each other at the midline

Question 26

T/F the distal surfaces of the 3rd molars are not proximal surfaces

Answer 26

True (b/c we don't have a 4th molar touching the 3rd molar)

Question 27

What is a ridge?

Answer 27

elevation of tooth structure (positive anatomy)

Question 28

What type of teeth have triangular ridges? Where are they located? Where do they extend?

Answer 28

posterior teeth, on the occlusal surfaces | Descend from tips of cusps toward central part of occlusal surface

Question 29

What types of ridges go onto the facial or lingual surfaces of teeth?

Answer 29

facial/lingual ridges, NOT triangular ridges

Question 30

Where do the Lingual Heights of Contour occur?

Answer 30

lingual surfaces of posterior teeth, biggest bulge on the tooth

Question 31

What make up the positive anatomy of teeth?

Answer 31

cusps ridges (incisal, marginal, triangular, cuspal, facial, lingula, cervical, transverse, oblique) Cingulum (anterior teeth) lingual heights of contour (posterior)

Question 32

What make up the negative anatomy of the teeth?

Answer 32

``` Fossa Grooves: developmental, supplemental Sulcus Developmental depression Pits ```

Question 33

What comes first, positive or negative tooth anatomy?

Answer 33

Positive tooth anatomy gives rise to negative tooth anatomy

Question 34

What is sulcus?

Answer 34

A space/depression between tooth areas - cannot touch a sulcus!

Question 35

What lies at the bottom of a sulcus?

Answer 35

Groove

Question 36

What is the anterior teeth division of thirds?

Answer 36

incisal, middle, cervical

Question 37

When two surfaces meet what does it create?

Answer 37

line angle

Question 38

Proximal Surfaces are the surfaces of teeth facing toward the adjoining or adjacent teeth in the same arch. Axial Surfaces are the surfaces of teeth that are parallel to the long axis of the tooth (Mesial, Distal, Facial, Lingual). A. Both statements are false B. The first statement is true; the second statement is false C. Both statements are true D. The first statement is false; the second statement is true

Answer 38

C. Both statements are true

Question 39

All teeth have combinations of raised or convex areas (positive anatomy) and depressed or concave areas (negative anatomy). The positive anatomy is formed or constructed first, which then properly displays the negative anatomy. A. Both statements are false B. The first statement is true; the second statement is false C. Both statements are true D. The first statement is false; the second statement is true

Answer 39

C. Both Statements are true

Question 40

The mesial surface of one tooth will contact the distal surface of the adjacent tooth except at the ______________________ and on the distal surface of the ____________.

Answer 40

Midline; third molars

Question 41

The junction or separation between the crown and the root is called the:

Answer 41

Cementoenamel junction

Question 42

The construct of the permanent anterior teeth include all of the following EXCEPT: A. They are important in phonetics…“F” & “V”, “T”, “D” & “S” sounds B. All are typically multi rooted teeth C. They are used to “incise” or tear or shred food, not to chew (masticate) D. There are six teeth in the maxillary arch and six teeth in the mandibular arch

Answer 42

B. They are typically multi rooted teeth

Question 43

The triangular ridges on the facial cusps are called lingual ridges. Additionally, the triangular ridges of the lingual cusps are called facial ridges. A. Both statements are false B. The first statement is true; the second statement is false C. Both statements are true D. The first statement is false; the second statement is true

Answer 43

A. Both statements are false

Question 44

Posterior teeth have ____ facial cervical ridges and they have ____ lingual cervical ridges

Answer 44

1 facial cervical ridges | 0 lingual cervical ridges

Question 45

A transverse ridge is the union (or connection) of two triangular ridges crossing in a transverse direction on the surface of all teeth. Many posterior teeth have one transverse ridge, some have no transverse ridges. A. Both statements are false B. The first statement is true; the second statement is false C. Both statements are true D. The first statement is false; the second statement is true

Answer 45

D. The first statement is false; the second statement is true

Question 46

______ is the actual sharp line that delineates the facial from lingual surfaces on incisors

Answer 46

incisal edge

Question 47

The rounded borders of the enamel that form the mesial and distal margins or borders of the lingual surface of anterior teeth (incisors & canines) are called?

Answer 47

marginal ridges

Question 48

How many triangular ridges does each posterior tooth cusp have?

Answer 48

1

Question 49

Are triangular ridges wider or narrower at the base than at the cusp tip?

Answer 49

wider

Question 50

Where do cusps/cuspal ridges travel?

Answer 50

descend from tips of cusps in lateral directions either towards or away from midline of the arch

Question 51

How many ridges does each posterior tooth cusp have? How many ridges are a triangular ridge

Answer 51

4 ridges that emanate from the tip | 1 is a triangular ridge

Question 52

How are cuspal ridges named?

Answer 52

according to their location

Question 53

What teeth have oblique ridges?

Answer 53

maxillary molars (primary and permanent)

Question 54

Where does the oblique ridge travel?

Answer 54

obliquely crosses the occlusal surface and is formed by the union of the triangular ridge of the distofacial cusp and the distal cusp ridge of the mesiolingual cusp

Question 55

What is the union of two triangular ridges that transverse on the surface of only posterior teeth called?

Answer 55

transverse ridge

Question 56

How many transverse ridges to posterior teeth have?

Answer 56

1 to 0