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Max. 1st molars
na
20
Anatomy
Not Applicable
03/12/2010

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Cards

Term
The crown of the tooth tends to ______ toward the lingual
Definition
diverge
Term
From the facial view of the maxillary first molar:
The cusp slopes of the distofacial cusp form
Definition
approx. a right angle
Term
From the facial view of the maxillary first molar, the CEJ is located approx. ___mm from the bifurcation of the two facial roots?
Definition
4mm
Term
3 facts about the facial developmental groove
Definition
This groove extends onto the facial surface of the crown
A developmental pit may be associated with this groove
This groove is usually in line with the facial bifurcation
Term
from the facial view of the root system of the maxillary first molar,The semiofficial root usually curves
Definition
distally in the apical third
Term
Rank the cusp sizes of the maxillary first molar from largest to smallest:
Definition
ML, MF, DL, DF, 5th cusp
Term
location of the fifth cusp (Cusp of Caribelli)?
Definition
Lingual surface of the mesiolingual cusp
Term
which cusp centered over the root truck area of the maxillary first molar
Definition
Mesiolingual cusp
Term
Which cusp is not included in the primary cusp triangle of the maxillary first molar?
Definition
DL cusp
Term
which developmental grooves unite and extend across two surfaces of the crown of the maxillary first molar?
Definition
Distal oblique developmental groove and lingual developmental groove
Term
Which of the following root surfaces of the maxillary first molar exhibit’s a developmental depression?
Definition
Lingual surface of the palatal root
Term
Which root of the maxillary first molar is the broadest faciolingually?
Definition
Mesiofacial root
Term
From the mesial view of the maxillary first molar: (3 things)
Definition
The facial cervical ridge forms the facial height of contour
The faciolingual diameter of the root spread is broader than the diameter of the crown
The CEJ shows little curvature
Term
From the distal view of the maxillary first molar:
Definition
The distal contact is centered both faciolingually and occlusocervically
Term
From the occlusal view of the maxillary first molar:
Definition
The primary cusp triangle forms a large portion of the occlusal surface
Term
The two acute line angles formed by the occlusal outline of the maxillary first molar are:
Definition
Mesiofacial and distolingual
Term
Portions of which two cusps form the oblique ridge of the occlusal surface of the maxillary first molar?
Definition
Mesiolingual and distofacial
Term
. Of the six developmental grooves found on the maxillary first molar, how many are located on the occlusal surface of the crown?
Definition
4
Term
When examining the cervical cross section of the maxillary first molar the root system is Wider
Definition
faciolingually than mesiodistally
Term
Which root of the maxillary first molar usually has two root canals?
Definition
Mesiofacial root
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