Md Molars Quiz Flashcards
How many roots would you expect for a mandibular molar tooth?
2
Whichs of the mn molars is most likely to exhibit fused roots?
Mn 3rd molars
Which mn molar is most likely to exhibit a root trunk of ~3 mm?
Mn 1st molar
For mn molars, which of the cusps are centric (functional) cusps?
MB, DB, distal cusps
For mn molars, which root has greatest dimension faciolingually?
Mesial root
Which mn molars would be most likely to be congenitally missing?
Mn 3rd molars
Which mn molar(s) have more dimension faciolingually than mesiodistally?
None
Which mn molar(s) exhibit a distinct anatomical characteristic connecting the D cusp ridge of the ML cusp to the triangular ridge of the DB cusp?
None
Which mn molar(s) exhibits a distinct anatomical characteristic consisting of a mesiobuccocervical prominence?
Mn 2nd molar
For mn molars, which of the cusp(s) would be found to be more in line with the supporting structures of the roots of the tooth?
MB, DB, distal cusps
For mn molars, which of the cusps would be found to be more peripherally and not well supported by the structure of the roots of the tooth?
Lingual cusps
When a mn 1st molar exhibits a 3rd root, where is the root usually located?
Distal-lingual
Which one of the mn molar teeth, when viewed from the occlusal aspect, is most likely to exhibit a pentagonal geometric outline?
Mn 1st molar
Which one of the mn molar teeth is most likely to exhibit a closed occlusal table and present with more B and L surface is visible from the O aspect?
Mn 3rd molar
Name the 4 developmental grooves that divide the mn 1st molar in a fashion that reinforces the concept of developmental lobes
MB groove
Central groove
DB groove
Lingual groove
The mn molars have both buccal and lingual grooves that terminate in a pit on the corresponding axial surface. Is the B or L groove more likely to be involved with a caries lesion?
Buccal groove
Which B developmental groove of the Mn 1st molar is most likely to travel in a direct BL fashion (while the other travels at an angle)?
MB groove
How many pulp canals are more often observed for a mn 1st molar?
3
Which surface of a mn 1st molar is most likely to exhibit a broad flat profile that can complicate restorative procedures?
Mesial
What is the most common number of pulp canals found in a mn 2nd molar?
3
Which of the roots of the mn molars would exhibit a dimension that is quite broad in BL dimension? (Greater than the other tooth root)
Mesial root
Which of the roots of the mn molars might exhibit the unusual presentation of a third root extending toward the lingual?
Distal root
How often would you expect to find 4 pulp canals for a mn 1st molar?
30%
Which of the roots of the mn 2nd molar would most likely exhibit 2 pulp canals?
Mesial root
Name the centric cusps of the mn molars
MB, DB, distal
Name the non centric cusps of the mn molars
ML, DL
At what age does calcification of the mn 1st molar begin?
Birth
At what age does calcification of the mn 1st molar end?
9-10 years
At what age does the mn 1st molar erupt into the oral cavity?
6-7 years
At what age does calcification of the mx second molar begin?
2.5 years
When do mn premolars begin calcification?
1.75-2.5 years
What is the age range for the beginning of calcification of the anterior teeth?
3 mo - 1 year
What is the age range for the beginning of calcification of the premolars?
1.5-2.5 years
At what age would you expect to see 4 permanent teeth and 20 primary teeth present in the oral cavity?
6-7 years
At what age would you expect to see 14 permanent teeth and 10 primary teeth present in the oral cavity?
9-10 years
What is the generalized geometric outline form used to describe the mn molars when viewed from the occlusal aspect?
Rectangle/pentagonal
What is the generalized geometric outline form used to describe the mn molars when viewed from the mesial aspect?
Rhomboidal
