Midterm 2.1 Flashcards
name the grooves for the 1st mandibular molar? which one is unique?
central. MB, DB, lingual
* DB is unique, starts at central groove mesial to distal fossa
name the grooves for the 2nd mandibular molar? Which one is unique?
central, buccal and lingual
*buccal= extends onto buccal surface and carries prone
which groove is carries prone for mandibular molars?
buccal groove on 2nd mandibular molars
what cusp is smallest on the mandibular 1st and 2nd molar?
MD 1= distal cusp
MD 2= distobuccal cusp
how many roots does mandibular molars have?
2; mesial and distal
what root for a mandibular molar is most likely to have two canals?
mesial
how many roots does a maxillary molar have?
3; lingual, mesial buccal, distolbuccal
which root in the maxillary molar is longest?
lingual
which maxillary root is likely to have two canals?
mesiobuccal
What is maxillary molars greatest dimension? Mandibular?
Max= facial-lingual Mand= mesial-distal
what cusp makes 1 mandibular molars unique?
distal cusp (smallest cusp)
how many transverse ridges do mandibular molars have?
2
1- ML to MB
2- DL to DB
how many transverse ridges to maxillary molars have?
1; ML to MD
how many oblique ridges do maxillary molars have?
1; ML to DB
maxillary molars are unique in that they?
have a 5th smaller cusp called “cusp of carabelli”
what ridge is most prominent on mandibular 2 molars?
mesial buccal cervical ridge
mandibular molars have more bulk where? and tilt what direction?
more bulk on buccal and tilt lingually (and distally)
what are the names to the fossa on mandibular molars?
central, mesial triangular and distal triangular
order of largest to smallest maxillary molar cusps?
ML > MB > DB > DL
ankylosis
fusion of cementum to alveolar bone when periodontal ligament is lost, can cause infraversion
What tooth is most likely to have bifurcated root?
Maxillary 1st premolars
