Molars Flashcards
What shape is the occlusal outline from an occlusal view of mx 1st molars?
rhomboidal
Which angles on max 1st molars are acute?
mesiofacial and distolingual
*rhomboidal shape
which angles on max 1st molars are obtuse?
mesio-lingual and disto-facial
**rhomboidal shape
what direction does the max 1st molar taper?
facial
are the buccal or lingual embrasures larger?
buccal
which root of the 1st mx molar is the largest?
palatal
which root of the 1st mx molar is the smallest?
disto-buccal
*MB root needs rom for MB2 canal, so it needs to be bigger
which tooth when viewed from the facial has the lingual root and facial groove lined up?
mx 1st molar
When the mx 1st moalr has a 4th canal, which root is it typically located in?
mesio-buccal
where are the 3 furcations of the mx 1st molar located?
mesial, buccal, distal
which furcation is closest to the cervial line in mx 1st molars?
mesial
- M –> B –> D
what landmark is the distal boundary of the mx 1st molar?
oblique ridge
*obtuse angles of the rhomboidal shape coincide with the direction of the ridge
what angles connect the oblique ridge in the mx 1st molar?
ML and DB
which cusp of the mx 1st molar occludes wit the central fossa of the mandibular molars?
ML
which tooth has the greatest FL diameter?
mx 1st molar
*think of the cusp of carabelli
Which tooth is the closest in size FL vs MD in MAX. POSTERIOR teeth?
mx 1st molar
Which part of the mx 1st molar is longer? MD on the facial side, or MD on the lingual side?
mesio-distal on the facial side
which cusp of mx 1st molar is the largest and longest?
mesio-lingual cusp
which tooth is most likely to be forced into the maxillary sinus during extraction?
mx 1st molar