2. Bud & Cap Stage Dr. Fathy Emad

Bud stage & Cap stage

1 / 10

The dental sac is:

The condensation of the ectomesenchymal cells surrounding the dental papilla.

The condensation of the ectomesenchymal cells surrounding the dental organ.

None of the above.

The condensation of the ectomesenchymal cells surrounding the dental organ and dental papilla.

2 / 10

The dental lamina:

Has no remnants.

Develops from the oral epithelium.

Breaks at the cap stage.

Has no branching.

3 / 10

The origin of enamel is:

Ectomesenchyme.

Endoderm.

Mesoderm.

Ectoderm.

4 / 10

The dental lamina initiating the permanent molars develops:

As successional lamina.

As a distal extension of the dental lamina.

As lateral dental lamina.

As vestibular lamina.

5 / 10

The tooth germ is composed of:

Dental follicle, dental lamina, vestibular lamina.

Dental papilla, dental lamina, dental organ.

Dental papilla, dental follicle, dental organ

Dental organ, dental follicle, dental lamina.

6 / 10

The dental lamina is induced to proliferate into a tooth bud by the:

Ectomesenchyme.

Basement membrane.

Oral epithelium.

Nerve endings.

7 / 10

Before enamel formation begins:

Enamel knot disappears and enamel cord remains.

Both knot and cord remain.

Enamel knot remains and enamel cord disappear.

Both knot and cord disappear.

8 / 10

The ectomesenchymal cell condensation just beneath the enamel organ is called:

Dental papilla.

Dental follicle.

Dental sac.

pulp.

9 / 10

Which of the following is a component of tooth germ?

Dental sac.

Lateral dental lamina.

Vestibular lamina.

Successional lamina.

10 / 10

During the early stages of tooth development three transitory structures may be seen, these structures are:
a)
b)

enamel organ & enamel knot

enamel organ & enamel epithelium

Enamel knot, enamel epithelium

Enamel knot, enamel cord

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