Dental anatomy Flashcards
What is a Tubercle
Extra formation of enamel on the crown of a tooth.
supernumerary cusp.
Ex. Cusp of carabelli
Def of ridge
linear elevation of enamel surface
Oblique ridge location
On all mx molars from ML to DB cusps.
Separates the MB and DL cusps.
what cusp of all mx molars has two triangular ridges
ML cusp
Def of supplemental groove
irregularly defined, short groove auxiliary to a development groove that does not separate major tooth parts.
Def of line angle
angle formed by the junction of two surfaces
def of point angle
angle formed by the junction of three surfaces
How many line angles in anterior teeth
six
how many line angles in posterior teeth
eight
All teeth have how many point angles
four
Name of four embrasures
Buccal
Lingual
Occlussal/incisal
Cervical/gingival
Where is the largest O embrasure
bn mx canine and PM1
Where is the largest I embrasure
bn mx lat and canine
where is the smallest I embrasure
bn md centrals
What molars are generally trifurcated
Mx molars
What molars are generally bifurcated
Md molars
All dental and perio innervation comes from
Trigeminal nerve
maxillary nerve V2.
Mandibular nerve V3.
All dental and perio arterial supply arises from
maxillary artery.
Supply parallels corresponding nerves.
All dental and perio venous return drains into
Pterygoid plexus of veins, eventually forming Maxillary vein.
What innervates the gingiva of md anteriors and premolars
mental nerve
What innervates the gingiva of md molars
buccal nerve
what innervates all the mandibular teeth
Inferior alveolar nerve
Purpose of of proximal contacts
Prevent rotation
Mesial drift
Food impaction
What shape are the F and L surfaces of all teeth
Trapezoidal
