Chapter 6 Part 2: Tooth Development & Eruption

Front 1

What is the fifth stage in odontogenesis

Back 1

apposition

Front 2

growth by layers

Back 2

apposition

Front 3

involves thephysiological processes of induction and proliferation

Back 3

appositional stage

Front 4

the enamel, dentin, and cementum aresecreted in successive layers during what progess

Back 4

apposition

Front 5

an extracellular substance that ispartially calcified yet serves as a framework for later calcification

Back 5

matrix

Front 6

What is the sixth and final stage of odontogenisis

Back 6

maturation

Front 7

what occurs when the dental tissues subsequently fully mineralize

Back 7

maturation

Front 8

Tooth development begins in the _____ and then proceeds to the_________.

Back 8

Crown & Root

Front 9

After the formation of the IEE in thebell-shaped enamel organ, the cells differentiate into

Back 9

preameloblasts

Front 10

During differentiation of enamel organ cells into preameloblasts, the nucleusof each cell moves away for the center to the position farthest away from thebasement membrane. This movement occursduring _______ ___________?

Back 10

cellular repolarization

Front 11

moving away from the basement membrane

Back 11

repolarization

Front 12

odontoblasts begin what

Back 12

dentinogenisis

Front 13

secreting predentin

Back 13

dentinogenisis

Front 14

apposition involves which two physiological processes

Back 14

induction and proliferation

Front 15

During apposition what is secreted in successive layers?

Back 15

enamel, dentin, & cementum

Front 16

enamel, dentin, and and cementum are initially secreted as

Back 16

matrix

Front 17

The sixth stage of odontogenesis involves which physiological process?

Back 17

maturation

Front 18

After the IEE differentiates into preameloblasts during the maturation stage of odontogenesis what happens?

Back 18

the outer cells of the dental papilla are induced by the preameloblasts to differentiate into odontoblasts

Front 19

what takes place due to odontoblasts undergoing repolarization in the maturation stage of odontogenesis?

Back 19

their nuclei move from the center to a position that is farthest from the basement membrane

Front 20

after odontoblasts undergo repolarization what happens?

Back 20

the odontoblasts nuclei line up in mirror image to the preameloblasts location on the other side of the basement membrane.

Front 21

after the odontoblasts nuclei line up in mirror image to the preameloblasts location on the other side of the basement membrane

Back 21

the odontoblasts begin dentinogenesis

Front 22

apposition of dentin matrix on their side of the basement membrane

Back 22

dentinogenesis

Front 23

dentin matrix

Back 23

predentin

Front 24

when do odontoblasts begin dentinogenesis?

Back 24

after the odontoblasts nuclei line up in mirror image to the preameloblasts location on the other side of the basement membrane

Front 25

even though the preameloblasts forms first

Back 25

the odontoblasts start their secretions first.

Front 26

After differentiation of odontoblasts and the formation of predintin

Back 26

the basement membrane between the preameloblasts and odontoblasts begins to disintegrate

Front 27

when the basement membrane between the preameloblasts and odontoblasts begins to disintegrate it allows what to happen?

Back 27

preameloblasts to become in contact with the newly formed predentin

Front 28

when the preameloblasts contact newly formed dentin it induces what

Back 28

the preameloblasts to differentiate into ameloblasts.

Front 29

apposition of enamel matrix

Back 29

amelogenesis

Front 30

the enamel matrix is secreted from

Back 30

Tomes' Process

Front 31

a tapered portion of each ameloblast that faces the disintegrating basement membrane

Back 31

Tomes' Process

Front 32

WIth the enamel matrix in contact with the predentin what occurs?

Back 32

mineralization of the disintegrating basement membrane takes place

Front 33

when the mineralization of the disintegrating basement membrane takes place due to the enamel matrix and predentin coming in contact with each other what is formed

Back 33

the dentinoenamel junction (DEJ)

Front 34

attached cellular extensions in the length of the predentin

Back 34

odontoblastic process

Front 35

odontoblastic process is contained in a mineralized cylinder called

Back 35

dental tubule