Lab 2 questions

Question 1

Which teeth have a central fossa?

Answer 1

All molars; 3 cusps variety mandibular 2nd premolar

Question 2

Which teeth have mesial and distal triangular fossae?

Answer 2

All posterior teeth

Question 3

Which teeth have mesial and distal lingual fossae?

Answer 3

Canines

Question 4

Which teeth have a single lingual fossa?

Answer 4

All incisors

Question 5

Which teeth have marginal ridges?

Answer 5

All teeth have 2 marginal ridges (mesial and distal)

Question 6

Which teeth have triangular ridges?

Answer 6

All posterior teeth

Question 7

Which teeth have transverse ridges?

Answer 7

Mandibular first premolar, mandibular second molar, maxillary premolars, mesial cusps of maxillary molars
- Must have triangular ridge meeting mesially and distally

Question 8

Which teeth have lingual grooves

Answer 8

all molars, 3 cusp variety mandibular second premolar

Question 9

Which teeth have oblique ridges

Answer 9

maxillary molars

Question 10

Which teeth have buccal groves?

Answer 10

All molars

Question 11

Which teeth have occlusal tables

Answer 11

only posterior teeth

Question 12

What are the boundaries of an occlusal table?

Answer 12

crest of the mesial and distal cuspal ridges, crests of the marginal ridges and cusp tips

Question 13

Which teeth have central grooves?

Answer 13

All posterior teeth

Question 14

What are the boundaries of a lingual fossae on an incisor?

Answer 14

Linguoincisal edge, mesial and distal marginal ridges and the cigulum

Question 15

What are the boundaries of distal lingual fossae on a canine?

Answer 15

Lingual ridge, distal cusp ridge, distal marginal ridge, cingulum

Question 16

Which teeth have cingulum?

Answer 16

Anterior teeth only

Question 17

Which teeth have cervical ridges

Answer 17

All teeth

Question 18

Where are surgical ridges located?

Answer 18

Facial and lingual surfaces of anterior teeth

Facial surfaces of posterior teeth

Question 19

Which teeth have incisal edges?

Answer 19

Incisors

Question 20

Which teeth have cuspal ridges?

Answer 20

Canines and posterior teeth

Question 21

The height of contour on the facial surface of the teeth is termed the:

Answer 21

cervical ridge

Question 22

The height of contour on the lingual surface of posterior teeth is termed the:

Answer 22

Trick question - it is not named!

Question 23

The bulk of the cervical one-third on the lingual surface of an anterior tooth is termed a:

Answer 23

cingulum

Question 24

When viewing a permanent incisor from the incisal aspect, portions of all of the folowing structures are visible except: 
A. marginal ridge
B. lingual fossa
C. cervical line
D. incisal edge 
E. cingulum

Answer 24

C. cervical line

Question 25

From the facial aspect, all permanent teeth are considered to have what shape?

Answer 25

trapezoidal

Question 26

From a proximal viewpoint, mandibular posterior teeth are considered to have what shape?

Answer 26

rhomboidal