quiz #4

Question 1

the ____ ____ of the ____ ____ meet at an angle that is almost ____

Answer 1

cuspal ridges
misiofacial cusp
flat

Question 2

the ___ ____ has cuspal ridges that give rise to a more ____ cusp tip than the mesiofacial cusp, but the cusp is still rounded.

Answer 2

distalfacial cusp

pointed

Question 3

how much of the total mesiodistal width of the facial surface does the distal cusp comprise?

Answer 3

a very small part

Question 4

the distal cusp is more ___ than either the mesiofacial or distalfacial cusp

Answer 4

pointed

Question 5

the mesiofacial groove is ___ than the distal facial groove and extends from the ____ ____ of the facial surface and terminates about halfway to the ____ _____ ending in the slight depression that extends laterally from the terminal groove.

Answer 5

shorter
occlusal margin
cervical line

Question 6

there is a pit present at the teriminus that commonly requires restoration that is termed a _____ or ____ pit.

Answer 6

facial

buccal

Question 7

the trunk at the facial aspect measures ____ on average

Answer 7

3 mm

Question 8

what is present between the roots of the facial aspect of the first molar?

Answer 8

a deep depression between the roots that become progressively more shallow as it extends occlusaly from the bifurcation

Question 9

how do the roots of the mandibular first molar compare to the mandibular second and third molar?

Answer 9

usually longer and more divergant.

Question 10

permanent mandibular first molar lingual aspect:

the cervical line is positioned approximately ____ higher on the lingual surface than on the facial surface.

Answer 10

1 mm

Question 11

how does the root length measure on the lingual aspect of the first mandibular molar?

Answer 11

greater because the roots are measure from the cervical line to the apex.

Question 12

the mesial crown outline is ___ ____

Answer 12

rhomboidal shaped.

Question 13

the greatest curvature of the facial outline is a the cervical third of the crown and is termed the _____ _____

Answer 13

cervical ridge

Question 14

the angulation of the triangular ridge of the mesiolingual cup is approximately _____ ____ in reation to the _____ ____ ____

Answer 14

30 degress, mesial marginal ridge

Question 15

since the mesial cusp is _____ then the distal cusp on the tooth, _____ _____ of the occlusal surface can be viewed

Answer 15

taller, very little