The Cap Stage

The Cap Stage

“What is the cap stage? A detailed question and answers guide”

Cap stage
Answer:

• After the proliferation of tooth bud, unequal growth occurs in different parts of tooth byd
• This results in cap-stage development
• It is characterized by shallow invagination on the deep surface of the bud

Layers:

1. Inner enamel epithelium

• The cells in the concavity of the cap become tall, and the columnar cell represents the inner enamel epithelium
• It is separated from the dental papilla by a delicate basement membrane

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2. Outer enamel epithelium

• The peripheral cells covering the convexity of the cap are cuboidal
• They represent outer enamel epithelium
• It is separated from the dental sac by a basement membrane

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3. Stellate reticulum

• It is a layer of polygonal cells between the inner and outer enamel epithelium
• Due to the entry of water into the enamel organ, these cells become star-shaped
• These cells maintain contact with each other through their cytoplasmic process
• They act as shock absorbers to support and protect the delicate enamel-forming cell

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Structures formed during this stage:

• Enamel knot
• Enamel cord
• Enamel septum
• Enamel navel