Mandibular Molars Flashcards
Name the five cusps of the mandibular first molar
Mesiolingual Mesiobuccal Distolingual Distobuccal Distal
Name the roots of the mandibular first molar
Distal and mesial
The mandibular first molar is wider _____ than ______
Mesiodistally than buccuolingually (by about 1mm)
Which root of the mandibular first molar is most broad?
Mesial root
True or false… if viewed from the lingual view, you can see all five cusps of the mandibular first molar
False… you can see all five from the buccal view
Why can you see the lingual cusps from the buccal view of the mandibular first molar?
Lingual cusps are longer
Name the developmental grooves of the mandibular first molar that can be seen from the buccal view
Mesiobuccal
Distobuccal
The two buccal cusps of the mandibular first molar are relatively ____ with ____ curvature of the cusp ridge
Flat
Less
Which cusp viewed from the buccal view of the mandibular first molar is smaller and more pointed?
Distal cusp
On the mandibular first molar, buccal view, which cusp is the widest?
Mesiobuccal
Out of the developmental grooves on the buccal surface of the mandibular first molar, which is shortest?
Mesiobuccal is shortest and ends mid crown. Situated a little mesial to root bifurcation
The mesial outline from the buccal view of the mandibular first molar is _____ at the cervical third and _____ at contact area
Concave
Convex
The mandibular first molar, buccal view, the distal outline is ____ above the cervical line, then _____ at contact area
Straight
Convex
The mandibular first molar, in the buccal view, the mesiodistal width is _____ wider at contact than at the cervix
1.5-2
True or false… from the buccal view of the mandiblaur first molar, you may see the mesial surface of the distal root and mesial surface of mesial root
False. You can see the distal portions of each of the roots
From the lingual view of the mandibular first molar, roots are about 1mm ____ from the lingual
Longer
From the buccal view of the mandibular first molar, the distal outline of the mesial root is _____ from bifurcation to apex
Concave
On the mandibular first molar, which root is more curved?
Mesial root
On the mandibular first molar, both roots are ___ at the buccal than they are at the lingual
Wider
The point of bifurcation of the roots from the buccal view of the mandibular first molar is ____ below the cervical line
3mm
From the lingual view of the mandibular first molar, which cusps are seen?
Two lingual, and distal cusp
True or false. From the lingual view of the mandibular first molar, you cannot see the buccal cusps because the two lingual cusps are too tall
True
On the mandibular first molar the ______ cusp is the wides mesiodistal and cusp tip is ____
Mesiolingual
Highest
The _____ separates the two lingual cusps and goes down onto the lingual surface for a ____ distance
Lingual developmental groove
Short
On the mandibular first molar, Where the lingual cusp ridges meet at the groove, the angle is ____ more so than the angels at the cusp tips
Obtuse
What is a characteristic of the cervical line from the lingual view of the mandibular first molar?
Irregular with a point in direction of the bifurcation below it
True or false… on the mandibular first molar, the bifurcation groove is almost in line with the lingual developmental groove
True
From the mesial view of the mandibular first molar, you can see a _____ _____ to crown with its lingual tilt
Rhomboidal
On the mandibular first molar, the buccolingual measurement of crown is greater at the ___ than the ____
Mesial
Distal
The buccolingual measurement of crown and root of the mandiblaur first molar is 2mm ____ than the measurement of the second premolar
Greater
The ____ cusp of the mandibular first molar is longer than the buccal cusp in the premolar
Lingual
From the mesial view of the mandibular first molar, the outline of the buccal is ____ from just above the cervical line with the buccal cervical ridge located in the ______ third
Convex
Cervical
On the mandibular first molar, the mesiobuccal cusp is just above the ____ third of the mesial root
Buccal
Both of the roots on the mandibular first molar are wider at the _____ than the _____
Buccal
Lingual
On the mandibular first molar, which root is more curved?
Mesial root
The bifurcation groove is almost in line with the ____ developmental groove
Lingual
The buccolingual measurement of the crown is greater at the ____ than the ____
Mesial
Distal
Which cusp on the mandibular first molar is the tallest?
Mesiolingual
Which tooth, mandibular first or second molar, has a cervical line that points more sharply towards the bifurcation?
Mandibular second molar
True or false… the mandibular second molar has a crown and root that converge lingually to a greater degree than the first
False, it is to a lesser degree than the first molar
Which cusp is present in the mandibular first molar but no the mandibular second?
Distal cusp
Which tooth has its occlusal surface divided into 4 equal parts, dividing by right angles?
Mandibular second molar
If you are missing your mandibular right third molar, which tooth is likely to also be missing.. mandibular left third molar or maxillary right third molar?
Mandibular left third molar
