sharp quiz 3 anatomy

Cingulum(picture)

A

Distal marginal ridge

B

Mesial marginal ridge

C

Developmental grooves

formed by uniting the crown of the tooth

developmental / primary grooves

what is the red line?

supplemental / secondary grooves

what is the blue lines

Buccal groove

what is A?

Central groove

What is B?

Lingual groove

what is C?

Cusp of carabelli

Mostly on mesial linguals of maxillary first molars, a type of tubercle

Mamelons

extensions of three labial developmental lobes

how many lobes are on Anterior teeth?

4 lobes

Lingual ridge

only present on linguals of permanent canines. runs along two fossae

lingual fossae

Most anterior teeth have only one. Canines have two

Tubercles

accessory cusps. overcalcification small elevation of enamel

marginal ridges

raised borders on mesial and distals. 

Cusp tips

What are the dots?

Triangular ridges

what are the arrows?

Transverse ridge

squiggly line?

Buccal triangular ridge + lingual triangular ridge= ?

oblique ridge

squiggly line? 2 triangular ridges meet that are DB-ML

Supplemental groove

A?

Central Groove

B?

Triangular groove

C?

Marginal Groove

D?

Occlusal Pit

E?

Triangular Fossa

F?

Triangular ridge

G?

Triangular Fossa

H?

Cingulum

Lingual lobe of anterior teeth

Fossa

Depression or concavity

Pit

Found in fossa. small depression on surface of the tooth

Cusp

major eminence

groove

linear depression on the surface of the tooth

Fissures

are the grooves that naturally occur on all biting surfaces of teeth

Talon’s cusp

form supernumerary cusp which aries from cingulum and extends to incisal edge

Ridge

long narrow elevated strip

Imbrication Line

horizontal mesio- distal ridges on the cervical third of the facial surface of teeth and are associated with enamel incremental growth formation  These lines are associated with the lines of Retzius and grooves of perikymata  They are usually lost through tooth wear  Most commonly located on anterior and premolar teeth

maxillary central Incisor

distoincisal is more rounded than the mesioincisal angle, 3 pulp horns, 4 lobes, one root. ERUPTION between 7-8. root forms at 10 years. widest mesiodistal anterior tooth

Height of contour for Anteriors

Corwn labial and lingual surfaces is in cervical third

maxillary lateral incisor

apex of root normally curves to the distal. ERUPT : 8 to 9 years. root complesion at age 11. marginal ridge on mesial is longer than distals