Lecture 9- eruption/shedding (melfi)

Question 1

preemergence: main direction of movement is

Answer 1

facially

Question 2

prefunctional: main direction of movement is

Answer 2

occlusially

Question 3

functional: main direction of movement is…

Answer 3

mesially

Question 4

what stage is the # of root canals determined

Answer 4

preemergence

Question 5

When does the enamel organ become REE and the outer and inner layers become HERS?

Answer 5

preemergence

Question 6

what stage is when the ameloblasts, odontoblasts and fibroblasts differentiate

Answer 6

preemergence

Question 7

the prefunctional stage starts with… and ends when the tooth …

Answer 7

root dentin formation

reaches occlusal plane

Question 8

the preemergence stage starts with… and continues to the appearance of… and…, just prior to start of…

Answer 8

appearance of dental lamina
REE and HERS
root dentin formation

Question 9

ERM appear during the… stage

Answer 9

prefunctional

Question 10

During the prefunctional stage of eruption, the merged oral epithelium and reduced enamel epithelium undergo

Answer 10

cell death

Question 11

during emergence into the oral cavity, the reduced enamel epithelium becomes

Answer 11

junctional epithelium

Question 12

… is the physiologic elim of primary teeth caused by the resorptive action of odontoblasts

Answer 12

shedding

Question 13

the openings in the bone located lingual to the primary anterior teeth are called…. a…. ligament passes through the canal to the dental follicle of a succedaneous tooth and are thought to help guide the tooth into the oral cavity

Answer 13

gubernaculum canals

gubernaculum