Group questions- Molars Flashcards
1) Longest lingual root is bent like a banana?
Max 1st Molar
Has slight concavity on the distal root trunk, located between the distobuccal root and cervical line. This cavity is hard to keep clean.
Max 1st Molar
Lingual root is straighter, roots spread out less?
Mand. 2nd Molar
Lingual root extends much further out than the crown?
Max 1st Molar
On both Maxillary Molars which cervical line has a greater curvature?
Mesial cervical line
Which cusp is most likely to be absent on maxillary second molar?
Distolingual cusp
When a distolingual cusp is absent, which groove(s) would not be present?
Distal Obligue Groove
Which fossae is the largest on a maxillary first molar?
Central
Which cusp is the largest and longest on a maxillary second molar?
Mesial lingual cusp
The triangular ridges of which two cusps form the transverse ridge on most maxillary molar?
Mesiolingual and Mesiobuccal triangular ridges
What is the largest fossae of maxillary molars?
Central fossa
What Maxillary molar groove appears to be a continuation of the central groove?
distal oblique groove
Is the third molar crowns bigger or smaller than the first and second molars?
smaller
T/F? Deep grooves are normally found on the buccal surfaces of maxillary molars
False. Deep grooves are foung on the lingual surfaces of maxillary molars.
What is a difference that can be noted on most third molar roots in compared to the first and second molar?
Roots are fused together
All of the following fossae are found on a mandibular first molar except:
Buccal
On a five cusped molar, which cusp does not have a triangular ridge that forms part of a transverse ridge?
Distal
T/F? The distobuccal groove is unique to the second molar, starts at the central groove and extends between the distobuccal and distal cusps.
False, it is unique to the first molar
On a mandibular second molar, where is the mesial contact point?
Junction of the middle and buccal third
On some maxillary _______ molars, there may be a small fifth cusp called the cusp of carabelli on the ______ surface.
first, lingual
T/F? Mandibular first molars are the only ones that have a distobuccal groove- makes them unique.
True
Mandibular First Molars
- Have 5 cusps
- 2 buccal grooves
- Central groove zigzags
- Has a UNIQUE distobuccal groove
Mandibular Second Molars
- Have 4 cusps
- 1 buccal groove
- Central groove resembles a cross (+)
- More likely to have a supplemental groove.
This tooth can have a fifth cusp, Cusp of Carabelli, located on the lingual surface of the _______ cusp.
Maxillary First Molar, mesiolingual
What is the mesial contact point of the Maxillary First Molar?
Junction of the occlusal and middle thirds
The mesiolingual cusp of this tooth is larger than the distolingual cusp.
Maxillary first molar
On the mesial, the roots of this tooth usually extend wider than the crown.
Maxillary first molar
The ___________ marginal ridge is located more cervically than the _______ marginal ridge on both first and second molars.
Distal, mesial
Which mandubular molar has a wide mesial root with a blunted tip?
Mandibular first molar
Which mandibular has 5 cusps? What are they called?
Mandibular first molar: Mesiobuccal Distobuccal distal cusp (smallest) Mesiolingual Distolingual
_______ has a Distal contact area more cervical than the mesial contact area.
Mandibular first molar
_______ marginal ridge of mandibular molars are shorter (V-shape) allowing full view of all molar cusp whereas the_______marginal ridge only shows visibility of the buccal and lingual cusp.
Distal marginal ridge (v-shape, low); Mesial marginal ridge
Which mandibular molar has a buccal & lingual groove that intersects and creates a (+) shape across the central groove?
Mandibular second molar
Comparing the first and second mandibular molars, this molar has a more prominent cervical ridge?
Mandibular second molar
Which molar ha a probability of having a functionless fifth cusp (cusp of carabelli) on its lingual surface?
Maxillary first molar
T/F? From the buccal or lingual views, both maxillary and mandibular molars are wider occlusocervically than mesiodistally.
False, wider mesiodistally than occlusocervically
Which mandibular first or second molar has three buccal cusps?
Mandibular first molar
Which of these functions is not applicable for molars?
Tearing
T/F? Molars have an occlusal surface larger than any other tooth.
True
How many roots does a maxillary molar have? Where are they located?
3; mesiobuccal, distobuccal and lingual
Which molar is more likely to have five cusps?
Mandibular first molar
There is no distobuccal groove on which mandibular molar?
Mandibular second molar
Which mandibular molar has the shorter root trunk?
Mandibular first molar
Which mandibular crown tapers more lingually?
Mandibular first molar
