maxillary Flashcards
list the shapes from the occlusal view of each maxillary molar
1st: rhomboid
2nd: rhomboid or heart shaped
3rd: from rhomboid to heart shaped
on the maxillary first molar, list the cusp sizes from largest to smallest
mesiolingual (largest) mesiobuccal distobuccal distolingual carabelli
ml-mb-db-dl-carabelli
which angles on the maxillary first are obtuse? acute?
obtuse: DB and ML
acute: MB and DL
name the 7 grooves of the maxillary first mollar
- central groove of central fossa
- buccal groove
- buccal groove of central fossa
- distal occlusal groove (distal oblique)
- transverse groove of the oblique ridge
- lingual groove
- fifth cusp groove
from the buccal view, which cusp of broader? which is sharper?
broader: mesiobuccal
sharper: distobuccal
list the three roots of the maxillary 1st in order from longest to shortest
palatal (longest)
mesiobuccal
distobuccal
pal-mb-db
how many cusps and lobes in the maxillary 1st and 2nd mollar?
1st: 4 cusps (or 5 with carabelli) 4 lobes (or 5 with carabelli)
2nd:
4 cusps
4 or 3 lobes
functions of the molars?
- mastication
- maintenance of vertical dimension
- support cheeks
- keep tongue within arch
what can happen to somene missing their molars?
mandible can now close beyond what is normal, leading to:
- muscle and joint pain
- accelerated wear on TMJ
- less esthetic appearance
molars are the ________ teeth occlusocervically
shortest
in all molars, the mesiodistal dimension is _______ than occlusocervical
greater
all molar crowns from the buccal or lingual view have a ________ to ________ taper
mesial to distal taper
on all maxillary molars, between the distal and mesial cusps, which ones are shorter?
distal cusps are shorter than mesial cusps
which maxillary molar will not have a buccal to lingual taper from the occlusal view?
maxillary first with a large distolingual cusp
on all molars, where is the buccal height of contour? lingual height of contour?
buccal height of contour: cervical third
lingual height of contour: middle third
