embryology ch 16 quiz

permanent anterior teeth include the __ and __

incisors and canines

all anterior teeth are composed of - developmental lobes; - labial lobes and - lingual lobe

• 4

• 3

• 1

all permanent anterior teeth are __

succedaneous

the incisal surface is called the __ __ 

incisal ridge

function of incisors

biting and cutting

function of canines

pierce and tear

the CEJ curvature is __ on anterior teeth than posterior teeth

• greater

The raised rounded area on the cervical third of the lingual surface is the

• cingulum

the raised border son the mesial and distal sides of the lingual surface is the

marginal ridge

a shallow depression on the lingual surface is a 

fossa

a sharp linear depression marking the junction between developmental lobes is called a (v-shaped)

developmental groove

incisors help support the - and - and maintain the — — of the face

• lips

• face

• vertical dimension

newly erupted incisors show __ __ (small rounded enamel extensions)

• 3 mamelons

if mamelons are still present long after eruption, it may indicate an __ __ relationship

• anterior open-bite

deep lingual pit or invagination

Dens in Dente

extra cusp on cingulum

talon cusp

maxillary incisors are generally __ than mandibular incisors

• larger

the widest crown mesiodistally of any anterior tooth __ __ __

• maxillary central incisor

a space between maxillary central incisors is called a

• diastema

a supernumerary tooth between maxillary centrals is a __ 

• mesiodens

a small lateral incisor is called a

• peg lateral

mandibular incisors are — and — symmetrical than maxillary

smaller and more

central mandibular incisors

• erupt 6-7

• smallest

• symmetrical

• mi sharper than di

• small and centered cingulum

mandibular lateral incisor

• erupt 7-8 years

• slightly larger

• twisted distally

• cingulum just distal

• incisal ridge curves towards lingual on distal side 

canines are the _ tooth from the midline in each quadrant

• third

function

• to pierce and tear food

canines are called the “_ of the dental arch

• cornerstone

the longest tooth in the dentition

• the canine tooth

• also has the longest root in the dentition

vertical bony ridge over the canine root is called the __ __

• canine eminence

lingual anatomy for canines includes

• lingual ridge (vertical) and two separate and shallow fossae

canines are the most stable teeth because of their __root and — anchorage

• long root and strong

maxillary canines erupt at __-__years; mandibular at __-__years

• 11-12

• 9-10

maxillary canine anomalies may include __or__

• impacted 

• or dentigerous cyst

the mandibular canine is__and__pronounced lingually

• narrower and less

the mandibular canine may rarely have a __ root

• bifurcated

attrition lead to a change from cusp tip __ __

• incisal edge

recession may expose __ __ near CEJ

• root concavities

deposits often collect in the __ surfaces of mandibular incisors

• lingual

the canine eminence contributes to __ esthetic by supporting the __commissure

• facial and labial