Morphological Stages and Histophysiological Changes in Tooth Germ Development

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Questions and Answers

Which layer of cells underlines the ectoderm in the primitive oral cavity?

  • Mesoderm
  • Ectomesenchyme (correct)
  • Endoderm
  • Neural crest cells

What type of cells make up the ectoderm in the primitive oral cavity?

  • Columnar cells
  • Squamous cells
  • Flat cells
  • Basal cuboidal cells (correct)

What do the morphological stages of tooth development refer to?

  • Changes in the morphology of the developing tooth germ (correct)
  • Changes in the size of the developing tooth germ
  • Changes in the shape of the developing tooth germ
  • Changes in the function of the developing tooth germ

What do the histophysiological stages of tooth development refer to?

<p>Changes in the function of the developing tooth germ (B)</p> Signup and view all the answers

During tooth development, at what stage does the condensation of ectomesenchyme occur?

<p>At about 35 days of development (C)</p> Signup and view all the answers

What is the primary epithelial band?

<p>A continuous band of thickened epithelium around the mouth (D)</p> Signup and view all the answers

How many maxillary odontogenic epithelial islands form during tooth development?

<p>Four (A)</p> Signup and view all the answers

What leads to the formation of the primary epithelial band?

<p>Lateral proliferation of the cells of the islands (C)</p> Signup and view all the answers

What do the primary epithelial bands correspond to in the future dental arches?

<p>Upper and lower jaws (A)</p> Signup and view all the answers

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