15. Mn 1st and 2nd Molars Flashcards
Facial view: 1st Molar
Lingual cusps are _ than the facial cusps
taller
Facial view: 1st Molar
Lingual cusps are more _ than facial cusps
pointed
Facial view: 1st Molar
2 grooves are present: _ and _
MF groove
DF groove
Facial view: 1st Molar
The MF groove is the _ of the 2 facial grooves, often ending in a buccal of facial pit that often requires restorations
shortest
Facial view: 1st Molar
The cervical line dips down _
apically
Facial view: 1st Molar
Mesial outline is somewhat _ in its cervical 1/3 while the distal is straight or convex
concave
Facial view: 1st Molar
A deep depression is found on the root that gets more _ as it moves occlusally
shallow
Facial view: 1st Molar
The two roots at typically _ and more divergent than those of the 2nd and 3rd molars
longer
Facial view: 1st Molar
The mesial root is _ than the distal root with its mesial outline being convex
longer
Facial view: 1st Molar
Both roots from the facial view are _ MD than when viewed from the lingual
wider
Lingual view: 1st Molar
Tooth converges towards the _
lingual
Lingual view: 1st Molar
ML cusp will be somewhat _ and wider than the DL cusp
taller
Lingual view: 1st Molar
The cervical half of the entire lingual surface is relatively _ and flat
smooth
Lingual view: 1st Molar
Total root length is _ on the lingual surface due to the cervical line being 1mm closer to the occlusal
longer
Mesial view: 1st Molar
Greatest curvature of facial outline is in the _ third while on the lingual it is _ third
cervical
middle
Mesial view: 1st Molar
Only the _ cusps are visible since they are taller
mesial
Mesial view: 1st Molar
Anatomical crown length measures the same _ and lingually
facially
Mesial view: 1st Molar
Mesial root is visible only since it is _ faciolingually
wider
Mesial view: 1st Molar
Mesial root apex is in line with the _ cusp and facial to the FL long axis bisector
MF
Mesial view: 1st Molar
The facial outline of the mesial root is _ and straighter than the lingual outline
shorter
Mesial view: 1st Molar
Mesial root has a wide developmental root depression which is found on both the mesial and _ surface
distal
Distal view: 1st Molar
The distal cusp is said to be _ on the DF cusp
superimposed
Distal view: 1st Molar
Longitudinal root depressions may be present on the mesial and distal aspects of the distal root, though they are _ FL and not as deep as those on the mesial root
narrower
Occlusal view: 1st Molar
FL measurement is greatest in the _ half of the crown because of cervical ridges
mesial
Occlusal view: 1st Molar
The facial half of crown is much _ than the lingual half
wider
Occlusal view: 1st Molar
Tooth converges towards the _
lingual
Occlusal view: 1st Molar
Mesial contact is located slightly _ to the FL bisector and about 1mm cervical to the MMR
facial
Occlusal view: 1st Molar
Distal contact is located slightly _ to the FL bisector and about 1mm cervical to the distal ridge of the distal cusp
facial
Occlusal view: 1st Molar Greatest size of cusp order: MF ML and DL _ Distal
DF
Occlusal view: 1st Molar Greatest height of cusp order: ML _ MF DF D
DL
Occlusal view: 1st Molar
There is _ major fossa and 2 minor
1
Occlusal view: 1st Molar
There are _ major developmental grooves
4
Occlusal view: 1st Molar
The groove pattern of this tooth is either _, W, or Y
M
Occlusal view: 1st Molar
Each cusp has a triangular ridge, yet none of them meet, this means that there are no _ ridges
transverse
Facial view: 2nd Molar
Crown is _ MD and shorter occlusocervically than the 1st molar
narrower
Facial view: 2nd Molar
Lingual cusps are _ than the facial cusps
taller
Facial view: 2nd Molar
Lingual cusps are _ and more pointed
sharper
Facial view: 2nd Molar
One facial groove is present that _ only a short distance on the facial surface
extends
Facial view: 2nd Molar
The 2 cusps are about _ in MD width
equal
Facial view: 2nd Molar
Mesial root is longer than the distal and are generally _ together
close or fused
Lingual view: 2nd Molar
The lingual convergence is typically _ than that of the 1st molar
less
Lingual view: 2nd Molar
Crown length is the same on the F and L surfaces with the _ cusps being taller due to the cervical line being higher occlusally on the lingual surface
lingual
Mesial view: 2nd Molar
Greatest F curvature is in the _ third while the L is in the _ third
cervical
middle
Mesial view: 2nd Molar
The tips of the _ cusps are nearer the FL long axis bisector
facial
Mesial view: 2nd Molar
Mesial root has a root depression similar to that of the _ molar
1st
Distal view: 2nd Molar
Distal surface is said to be more _ or convex, often placing the distal contact centered both FL and OC
rounded
Occlusal view: 2nd Molar
All Mn molars are wider in their _ dimensions
MD
Occlusal view: 2nd Molar
The distal outline is rounded while the mesial outline is more _
square
Occlusal view: 2nd Molar
The tips of the _ cusps are usually located more lingually from the facial outline
facial
Occlusal view: 2nd Molar
Central groove is slightly _ to the FL bisector
lingual
Occlusal view: 2nd Molar
The 3 major grooves form a _
cross
Occlusal view: 2nd Molar
Often many _ grooves associated with this tooth
supplemental
Occlusal view: 2nd Molar
2 _ ridges are present
transverse