Lab

Question 1

Name the stages in order of tooth formation

Answer 1

primary epithelial band, bud stage, cap stage, bell stage,

Question 2

what does the primary epithelial band consist of

Answer 2

vestibular lamina, dental lamina

Question 3

Bud stage

Answer 3

first epithelial incursion into ectomesenchyme of jaw

Question 4

cap stage

Answer 4

scrooges hat!, dental papilla forms and dental follicle surrounds everything

Question 5

cap stage cont’d

Answer 5

start of cell differentiation. Peripheral cells differentiate into inner/outer enamel epithelia. Central cells turn into stellate reticulum

Question 6

what is the enamel knot in the cap stage?

Answer 6

only in molar teeth, organization center for cusps

Question 7

early bell stage has 2 things

Answer 7

innterinvesting layer & outer layer of dental follicle

Question 8

enamel cords purpose

Answer 8

divides cusps and helps place 1st cusp

Question 9

cervical loop purpose

Answer 9

junction between outer and inner epithelium

Question 10

main event of bell stage

Answer 10

formation occurs, incisors rotate, cusps form on molars