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Question 1

longest tooth overall

Answer 1

maxillary canine

Question 2

longest root overall

Answer 2

maxillary canine

Question 3

widest crownmesiodistally

Answer 3

mandibular first molar

Question 4

widest crown buccolingually

Answer 4

maxillary first molar

Question 5

narrowest crown mesiodistally

Answer 5

mandibular central incisor

Question 6

greatest cervical line curve

Answer 6

mesial or maxillary incisor

Question 7

tooth with longest crown

Answer 7

mandibular canine

Question 8

define cusp

Answer 8

pyramidal elevation with a peak called cusp tip

Question 9

where are cusps located on molars and premolars?

Answer 9

occlusal surfaces

Question 10

where are cusps located on canines?

Answer 10

incisal surface

Question 11

How many cusps do canines have?

Answer 11

1

Question 12

how many cusps do premolars have?

Answer 12

2-3

Question 13

how many cusps do molars have?

Answer 13

3-5

Question 14

cusp ridges

Answer 14

many cusps have 4 cusp ridges that converge to create a 4-sided pyramid with rounded surfaces (should make an X on the tip)

Question 15

triangular ridges are located where?

Answer 15

on the major cusps of posterior teeth extending fro cusp tip to depression (sulcus)

Question 16

describe a transverse ridge

Answer 16

when a triangular ridge from a buccal cusp joins with a triangular ridge from a lingual cusp

Question 17

a transverse ridge crosses the occlusal surface in what direction?

Answer 17

buccolingual direction

Question 18

oblique ridge is found where?

Answer 18

ONLY on maxillary molars

Question 19

A single cusp from a canine can have 4 ridges emanating from its cusps tip called?

Answer 19

mesial cusp ridge, distal cusp ridge, labial cusp ridge, lingual cusp ridge

Question 20

What is a cingulum? (cingula)

Answer 20

it is the prominence or bulge in the cervical third of the lingual surface of the crown

Question 21

Is the mesial marginal ridge normally larger or smaller than the distal marginal ridge?

Answer 21

mesial is normally longer

Question 22

What is the crest of curvature?

Answer 22

the greatest bulge on the buccal surface (or height of contour). This bulge is located on the cervical ridge of permanent molars (2nd)

Question 23

What are Mamelons?

Answer 23

are three small bulges or tubercles on the incisal edges of newly erupted incisors

Question 24

Can you easily find mamelons?

Answer 24

They are usually rubbed off on adult dentition

Question 25

What are perikymata?

Answer 25

are the numerous, minute horizontal ridges on the enamel of newly erupted permanent teeth

Question 26

What is an occlusal sulcus of a tooth?

Answer 26

a broad V-shaped depression or valley on the occlusal surface of each posterior teeth running mesiodeistally between buccal and lingual cusps

Question 27

fossa means

Answer 27

despression

Question 28

define groove

Answer 28

linear channel often found between cusps in the depth offthe sulcus and between ridges

Question 29

Purpose of a groove?

Answer 29

to serve as escape ways as the lower jaw moves, partially chewed food squirts out through the grooves towards the tongue and cheek

Question 30

developmental grooves

Answer 30

separate cusps and other major portions of a tooth formed from the developmental lobes

Question 31

central groove

Answer 31

on posterior teeth separating buccal from lingual cusps

Question 32

buccal groove

Answer 32

separates mesiobuccal and distobuccal cusps on mandibular molars

Question 33

mesiobuccal groove

Answer 33

separates mesiobuccal cusp from distobuccal cusp on mandibular molars

Question 34

distobuccal groove

Answer 34

separates distobuccal cusp from smallest distal cusp on mandibular molars

Question 35

lingual groove

Answer 35

between the mesiolingual and distolingual surface on mandibular molars, don't typically extend into onto lingual surface on maxillary molars

Question 36

buccal groove

Answer 36

between mesiobuccal and distobuccal cusps that does not normally extend onto the buccal surface on maxillary molars

Question 37

supplemental grooves

Answer 37

are additional occlusal grooves that are NOT developmental. Not normally given a specific name because they do not occur in same areas of same teeth

Question 38

mesial and distal fossa

Answer 38

are shallow depressions on posterior teeth within the occlusal table

Question 39

pit

Answer 39

is at the depth of a fossa where teh central groove joins the fossa grooves

Question 40

distobuccal developmental groove

Answer 40

runs toward the distobuccal line angle of the tooth

Question 41

Where would you find central fossa?

Answer 41

on most 3-cusped premolars and molars

Question 42

lingual fossa is found where?

Answer 42

on anterior teeth, its shallow and broad located on the lingual surface

Question 43

define caries

Answer 43

tooth decay

Question 44

what is the proper name for tooth decay aka cavities?

Answer 44

caries

Question 45

Where are the 'carious pits and fissures' most likely to be located?

Answer 45

1) depth of deep grooves and pits on occlusal surface of posterior teeth 2) i buccal grooves that extend onto the buccal surface on mandibular molars 3) in lingual grooves that extend onto the lingual surface of maxillary molars 4) on the lingual surface of maxillary incisors where the lingual fossa joins the cingulum

Question 46

root trunk

Answer 46

is like a trunk base, is partof the root of a multirooted molar or 2-rooted premolar next to the cementoenamel junction

Question 47

furcation

Answer 47

is the place on a multirooted tooth where the root trunk divides into separate roots

Question 48

Furcation: difference between bifurcation and trifurcation?

Answer 48

``` bifurcation= two rooted teeth trifurcation= 3 rooted teeth ```

Question 49

What is a furcal region?

Answer 49

it is the region or space between two or more roots, found apical to where the roots divide off the root trunk

Question 50

In general, the amount of curvature is greater or lesser on the mesial surface than on a distal surface of the same tooth

Answer 50

greater

Question 51

What tooth has the greatest amount of mesial curvature?

Answer 51

central incisors