Development of enamel and dentine at enamel at dentinoenamel junction

Question 1

The outer cuboidal cells of the enamel organ are the outer enamel epithelium, which will serve as a protective barrier for the rest of the enamel organ during enamel production within the ………… stage

Answer 1

Bell

Question 2

Between the outer and inner enamel epithelium are the two innermost layers, the ……… and stratum intermedium

Answer 2

Stellate reticulum

Question 3

One of the innermost layers of the enamel organ is the ……………, which is made up of a compressed layer of flat to cuboidal cells

Answer 3

Stratum Intermedium

Question 4

After the formation of the ………….. in the bell-shaped enamel organ, these innermost cells grow even more columnar as they differentiate into preameloblast, which then will undergo polarization

Answer 4

inner enamel Epithelium

Question 5

In the future, the …………. will first induce dental papilla cells to differentiate into dentin forming cells (odontoblasts) that then will differentiate into cells that secrete enamel (ameloblasts)

Answer 5

pre ameloblasts

Question 6

The dental Papilla within the concavity of the enamel organ undergoes extensive ………. so that it now consists of two types of tissues in layers, the outer cells of the dental papilla and central cells of the dental papilla

Answer 6

Histodifferentiation

Question 7

The outer cells of the dental papilla are induced by the preameleoblasts to differentiate into…………

Answer 7

odontoblasts

Question 8

After the differentiation and re-polarization, the odontoblasts now begin…… which is the appositional growth of pre-dentin on their side of the basement membrane

Answer 8

dentinogenesis

Question 9

After the differentiation of odontoblasts from the outer cells of the dental papilla and their formation of predentin, the ………. between the preameloblasts and the odontoblasts disintergrates; this is the future dentinoenamel junction

Answer 9

basement membrane

Question 10

The ……….. become, with further tooth development, the primordium of the pulp

Answer 10

central cells of the dental papilla