Dental Anayomy Flashcards
On the crown a maxillary premolar, the buccal triangular ridge is also known as as the
Lingual cusp ridge of the bucal cusp
the lingual cusp of the mandibular first premolar lies in the
lingual embrasure between the maxillary first premolar and maxillary canine
The mandibular condyle and its associated disc slide against which surface in normal mandibular opening?
Posterior portion of articular eminence
The primary maxillary canine usually erupts around:
16-20 mo
ideal intercuspal position, the distolingual cusp of #1 contacts the
distal marginal ridge of #32
premolars does not have a transverse ridge?
Mandibular 2nd premolar (3-cusp type)
he maxillary 1st premolar typically has a pulp chamber of what shape (at the level of the CEJ)?
Oval (flattened mesiodistally)
How many teeth in the primary dentition normally have a cingulum?
12
What TMJ ligament is derived from the 1st branchial arch?
Sphenomandibular
which tooth is most likely to have two canals in a single root?
Mandibular lateral incisor
Which tooth is most likely to have a cervical enamel projection?
Mandibular 2nd molar
A cervical ridge is found on the facial surface of how many primary teeth?
20
The mandible functions as what type of lever?
III
Which cusp is the longest and largest on a maxillary 1st molar?
Mesiolingual
he sphenomandibular ligament inserts at the:
inferior to the lingula
When the mandible shifts to the left, the right condylar head moves in which direction relative to articular eminence?
Anteriorly, downward, medially
A cervical ridge is found on the facial surface of how many primary teeth?
20
he maxillary buccal and mandibular lingual cusps function as supporting cusps in which of the following occlusal schemes
posterior crossbite
which of the following muscles function to elevate and protract the mandible?
masseter
How many point angles are found on tooth No. 12?
4
in total, how many grooves can be found on the bucal and lingual surfaces of both mandibular 1st and 2nd molars?
5
Which tooth has a mesial marginal ridge that is more cervically located than the distal marginal ridge?
1st premolar
The bud stage of tooth development starts at about
8 w
Which muscle inserts in the articular disc and condylar neck?
lateral pterygoid
The crowns of all 20 primary teeth begin to calcify between:
4-6
How many transverse ridges exist on a maxillary molar?
1
Which succedaneous tooth erupts beneath tooth J?
13
Which of the following muscles is/are most active in maintaining centric occlusion?
2 3
As a dentist, how many determinants of occlusion can you directly control?
1
Which of the following teeth has the roundest pulp chamber (at the level of the CEJ)?
Maxillary central incisor
Which cusp has two triangular ridges on the maxillary 1st molar?
mesiolingual
Which posterior tooth is most symmetrical from an occlusal view?
Maxillary 2nd premolar
Calcification of the permanent 1st molar begins a
at birth
Bilateral contraction of which of the following muscles results in protrusion of the mandible?
lateral pterygoid
Which tooth is MOST likely to have a deeper lingual pit?
Maxillary lateral incisor
