Final - Primary Dentition

5 weeks

development of primary teeth begins as early as ____ in utero

after birth

primary tooth enamel is completed:

mandibular

which teeth erupt first, maxillary or mandibular?

female

whose teeth tend to erupt first, male or females?

premolars

which type of tooth is missing in the primary dentition?

lingually

permanent anterior teeth develop ______ to the primary anterior teeth

underneath

permanent posterior teeth develop ______ to the primary posterior teeth

mandible

Leeway space is greater in which arch?

root trunk

The distance from the cementoenamel junction (CEJ) to the root groove and from the CEJ to the root division

5 months in utero

calcification time for maxillary primary 1st molar:

12-16 month

eruption time for maxillary primary 1st molar:

4

#of cusps for maxillary primary 1st molar:

3

# of roots for maxillary primary 1st molar:

mesiobuccal

for maxillary primary 1st molar, there is a large bulge of enamel in the cervical region of the ________ root

lingually

the maxillary primary 1st molar's crown converges ____

triangular

the maxillary primary 1st molar occlusally takes a _____ shape

4

# of pulp horns for the maxillary primary 1st molar:

ML

what cusp on the maxillary primary 1st molar is the longest?

MB

what cusp on the maxillary primary 1st molar is the biggest?

maxillary primary 1st molar

what primary posterior tooth has an oblique ridge?

3

# of pits on the maxillary primary 1st molar:

4

# of cusps for maxillary primary 2nd molar:

primary maxillary 2nd molar

which primary tooth most resembles the permanent maxillary 1st molar

6 months in utero

calcification time for maxillary primary 2nd molar:

2-2.5 years

eruption time for maxillary primary 2nd molar:

primary maxillary 2nd molar

what primary tooth has a Cusp of Carabelli?

5 months in utero

calcification time for mandibular primary 1st molar:

12-16 month

eruption time for mandibular primary 1st molar:

6 months in utero

calcification time for mandibular primary 2nd molar:

2-2.5 years

eruption time for mandibular primary 2nd molar:

permanent

Congenitally missing teeth are much more common in the ______ teeth

mandibular 2nd premolars

what is the 1st most common congenitally missing primary tooth?

maxillary lateral incisors

what is the 2nd most common congenitally missing primary tooth?

maxillary 2nd premolars

what is the 3rd most common congenitally missing primary tooth?

primary

which teeth are whiter (less calcified), permanent of primary teeth?

primary mandibular central incisors
primary maxillary 2nd molars

which primary teeth contact only one tooth in the opposing arch?

wider

Mandibular Primary Molars are _____ mesiodistally than the Maxillary

occlusally

in primary teeth, enamel rods slope _____ from the DEJ

cervically

in permanent teeth, enamel rods slope _____ from the DEJ

primary mandibular 2nd molar

what is the most frequently retained deciduous tooth?

20

how many deciduous teeth are there?

A-J

the maxillary deciduous teeth are lettered ___ - __

K-T

the mandibular deciduous teeth are lettered ___ - __

E & F

what two teeth lie in the midsagittal plane in the deciduous maxilla?

O&P

what two teeth lie in the midsagittal plane in the deciduous mandible?

mandibular

which teeth erupt first, maxillary or mandibular?

mandibular central incisor

what is the first primary tooth to erupt?

central incisor
lateral incisor
1st molar
canine
2nd molar

looking at just one 1/2 arch of the mandible, what is the order that the primary teeth erupt?

1.5 years

about how long does it take the roots formations of primary teeth to complete?

overbite

Increased vertical overlap of the maxillary incisors

overjet

Horizontal projection of upper teeth over the lower.

mesial

in the primary dentition, the primate space is ______ to the maxillary canine

distal

in the primary dentition, the primate space is ______ to the mandibular canine

Leeway space

Primary teeth are wider mesio-distally than the permanent teeth that replace them:

mesio-distally

Primary teeth are wider ____________ than the permanent teeth that replace them

tooth fusion

a rare developmental disorder characterized by the union of two adjacent teeth at the crown level (enamel and dentin), causing the formation of a tooth with an enlarged clinical crown:

tooth fusion

ID the tooth anomaly:

germination

occurs when a single bud splits and forms two teeth.

larger

in primary teeth, pulp chambers are ______ than those in permanent teeth

higher

in primary teeth, pulp horns are ______ than those in permanent teeth

mesio-distally

on the primary anterior teeth, the teeth are wider _______

more

the roots of the primary molar are slender and ______ flared than the premolars that replace them

false

t/f: primary teeth can have mamelons

3-4 months in utero

calcification for primary maxillary central incisor

4 months

crown completion for primary maxillary central incisor

7.5 months

eruption time for primary maxillary central incisor

2-3

# pulp horns for primary maxillary central incisor

mesial

on primary maxillary central incisor, there is usually a developmental groove on the _____ side of the root

2

# of pulp horns for primary maxillary lateral incisor

4-5 months in utero#

calcification for primary maxillary lateral incisor:

5 months

crown completion time for primary maxillary lateral incisor:

8-9 months

eruption time for primary maxillary lateral incisor:

primary maxillary canine

of the primary anterior teeth, what is the longest AND widest tooth?

rhomboid

from a facial aspect, the maxillary canine takes a ____ shape

triangular

the maxillary canine's root at a cross section takes a _____ shape

16-20 months

eruption time for primary maxillary canine:

9 months

crown completion for primary maxillary canine:

5 month in utero

calcification for primary maxillary canine:

0

# of pulp horns for primary maxillary canine:

at the same level

for primary maxillary canine, the mesial and distal height of contour are:

mesial

for primary maxillary canine, which incisal slope is longer, mesial or distal?

maxillary canine

what primary tooth has a root that is more than twice the length of its crown?

maxillary canine

what primary tooth has both on the lingual surface a mesial and distal fossa?

4-5 months in utero

calcification time for primary mandibular central incisor:

6.5 months

eruption time for primary mandibular central incisor:

2

# of pulp horns for primary mandibular central incisor:

4-5 months in utero

calcification time for primary mandibular lateral incisor:

7 months

eruption time for primary mandibular lateral incisor:

primary mandibular lateral incisor

that primary tooth labially, the crown is fan-shaped with a longer mesial side than the distal.

5 months in utero

calcification for primary mandibular canine:

16-20 months

eruption time for primary mandibular canine:

0

# of pulp horns for primary mandibular canine:

distal

which incisal cusp ridge slope is longer on the primary mandibular canine, mesial or distal?

2nd trimester

when do primary teeth show evidence of calcification in utero ?

at birth

when do 6-year molars show first evidence of calcification?

1/2

a tooth will erupt when its root is about _____ formed

1.5

The roots of primary teeth will complete about ___ years after eruption

2.5

the roots of the permanent teeth will complete about ___ years after eruption

centered

primary Maxillary incisors have incisal edges that are _____ over the long axis of the tooth

lingual

Mandibular incisors have incisal edges that are ______ to the long axis of the tooth