Oral Anatomy: Molars Flashcards
Which is the largest permanent tooth?
Maxillary first molar
Which is the only tooth that is broader lingually than buccally?
Maxillary first molar
Which is the widest tooth B-L?
Maxillary first molar
What is the first permanent maxillary tooth to erupt?
Maxillary first molar
The maxillary first molar is the only tooth with a pronounced ___________ concavity at the CEJ?
Distal
T/F: All maxillary molars have a distolingual groove with a pit.
True
Which molar has a long buccal groove with a central pit?
Maxillary first molar
The occlusal shape of the maxillary first molar is __________ and the proximal shape is ____________.
Rhomboidal; trapezoidal
Which is the largest and smallest cusp on the maxillary first molar?
Largest - ML
Smallest - DL
Where is the cusp of Carabelli found on some maxillary first molars?
Lingual to the ML cusp
Which cusp on the maxillary first molar has two triangular ridges?
ML cusp - forms transverse and oblique ridges
Only tooth with two triangular ridges on one cusp
On all maxillary molars, what connects the central and distal fossae?
Transverse groove of the oblique ridge
Which are the shortest and longest roots of the maxillary first molar?
Longest - Palatal
Shortest - DB
Which tooth has apices closest to the maxillary sinus?
Maxillary first molar
What is the second most common tooth to have cervical enamel projections?
Maxillary second molar
Most likely is mandibular second molar
The maxillary second molar is the closest tooth to which duct opening?
Stenson’s (parotid) duct
T/F: The maxillary 2nd molar has a long buccal groove with a central pit.
False
Short buccal groove
T/F: The maxillary 2nd molar has a longer root trunk than the maxillary 1st molar.
True
T/F: Maxillary third molars are the shortest permanent tooth and have the shortest maxillary crowns.
True
What are the most common congenitally missing teeth?
- Mand 3rd molar
- Max 3rd molar
- Max lateral incisor
Which tooth has a heart-shaped occlusal table?
Max 3rd molar
Maybe max 2nd molar if the DL cusp is missing
T/F: On the mand 1st molar, the lingual cusps are shorter than the buccal cusps.
False
Buccal cusps are shorter and blunter
T/F: The MB cusp of the mand first molar is the tallest.
False
MB = largest
ML = tallest
T/F: The mand 1st molar has two buccal grooves.
True
Separates the three buccal cusps
The _________ root of the mand 1st molar is longer and wider B-L.
mesial
The occlusal shape of the mand 1st molar is ________ and the proximal shape is __________.
Pentagonal; rhomboidal
What is the most common tooth to have CEPs?
Mand 2nd molar
What is the occlusal shape of the mand 2nd molar?
Rectangular
Which is the largest cusp on the mand 2nd molar?
MB cusp
T/F: The root trunk of the mand 2nd molar is longer than the mand 1st molar.
True
