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Questions and Answers
What induces cells at the periphery of the dental papilla to differentiate into odontoblast cells?
What induces cells at the periphery of the dental papilla to differentiate into odontoblast cells?
- Cementum
- Outer enamel epithelium
- Inner enamel epithelium (correct)
- Dental pulp
When do odontoblasts first appear at sites of tooth development?
When do odontoblasts first appear at sites of tooth development?
- 2 years after birth
- During adolescence
- 17–18 weeks in utero (correct)
- At birth
Where are odontoblasts located in the tooth?
Where are odontoblasts located in the tooth?
- In the periodontal ligament
- Within the enamel
- In the cementum
- Along the interface between dentin and pulp (correct)
What happens to odontoblast cells as more dentine matrix is deposited?
What happens to odontoblast cells as more dentine matrix is deposited?
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When does dentinogenesis occur in the life of an individual?
When does dentinogenesis occur in the life of an individual?
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Study Notes
Odontoblast Cell Differentiation
- The peripheral cells of the dental papilla differentiate into odontoblast cells induced by the inner enamel organ.
Odontoblast Appearance
- Odontoblasts first appear at sites of tooth development during the bell stage.
Odontoblast Location
- Odontoblasts are located adjacent to the pulp, lining the dentine.
Odontoblast Fate
- As more dentine matrix is deposited, odontoblast cells move away from the dentine surface and become smaller, eventually getting embedded in the dentine.
Dentinogenesis Timeline
- Dentinogenesis occurs throughout an individual's life, starting from the bell stage of tooth development and continuing throughout life as dentine is continually deposited.
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Description
Test your knowledge of dentinogenesis with this quiz! Learn about the process of dentin formation, the role of odontoblast cells, and the differences between dentinogenesis and amelogenesis.
