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Questions and Answers
Which type of cells are responsible for completing amelogenesis?
What is the main protein secreted by ameloblasts?
During which phase do ameloblasts secrete non-collagenous proteins?
When are teeth most susceptible to fluoride and tetracycline?
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Which phase of amelogenesis is the longest lasting?
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Study Notes
Amelogenesis
- Amelogenesis is completed by ameloblasts, which are epithelial cells.
- The process of amelogenesis consists of three stages: morphogenetic, histodifferentiation, and maturation.
Morphogenetic Phase
- During this stage, the cells forming the innermost layer of enamel epithelium are low, cubed-shaped cells.
- Nuclei are centrally placed within these cells.
Histodifferentiation Phase
- In this stage, the inner enamel epithelium differentiates into ameloblasts.
- Nuclei shift to the proximal side of the cells.
- Cell bodies elongate.
Enamel Matrix Proteins
- Ameloblasts secrete non-collagenous proteins, known as enamel matrix proteins.
- The main protein is amelogenin.
Maturation Phase
- During this stage, teeth become more susceptible to fluoride and tetracycline.
- The maturation phase is the longest-lasting phase of amelogenesis.
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Description
Understand the process of amelogenesis, including the role of ameloblasts and the different stages involved. Learn about the morphogenetic and histodifferentiation phases and the formation of enamel epithelium.
