2. Bud & Cap Stage Dr. Fathy Emad

Bud stage & Cap stage

1 / 10

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

enamel organ & enamel knot

Enamel knot, enamel epithelium

enamel organ & enamel epithelium

Enamel knot, enamel cord

2 / 10

The dental sac is:

The condensation of the ectomesenchymal cells surrounding the dental organ.

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

The condensation of the ectomesenchymal cells surrounding the dental papilla.

None of the above.

3 / 10

The tooth germ is composed of:

Dental follicle, dental lamina, vestibular lamina.

Dental papilla, dental lamina, dental organ.

Dental organ, dental follicle, dental lamina.

Dental papilla, dental follicle, dental organ

4 / 10

The dental lamina initiating the permanent molars develops:

As successional lamina.

As vestibular lamina.

As lateral dental lamina.

As a distal extension of the dental lamina.

5 / 10

The dental lamina:

Has no remnants.

Breaks at the cap stage.

Has no branching.

Develops from the oral epithelium.

6 / 10

The origin of enamel is:

Ectoderm.

Ectomesenchyme.

Mesoderm.

Endoderm.

7 / 10

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

Basement membrane.

Nerve endings.

Ectomesenchyme.

Oral epithelium.

8 / 10

Which of the following is a component of tooth germ?

Dental sac.

Lateral dental lamina.

Successional lamina.

Vestibular lamina.

9 / 10

Before enamel formation begins:

Both knot and cord remain.

Enamel knot remains and enamel cord disappear.

Enamel knot disappears and enamel cord remains.

Both knot and cord disappear.

10 / 10

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

pulp.

Dental papilla.

Dental sac.

Dental follicle.

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