Podcast
Questions and Answers
What indicates the presence of dead tracts in dentine?
What indicates the presence of dead tracts in dentine?
- Increase in size of tubules
- Increase in globules or calcospherites
- Decrease in interglobular dentine
- Sealed off tubules at the pulpal ends (correct)
Where can interglobular dentine resembling holly leaves be found?
Where can interglobular dentine resembling holly leaves be found?
- In the crown, near the mantle layer
- In the root, near the cement
- At the amelodentinal junction
- About 0.2 mm from the amelodentinal junction (correct)
What is the outer layer of the root with few tubules called?
What is the outer layer of the root with few tubules called?
- Hyaline layer of Hopewell-Smith (correct)
- Mantle layer of the crown
- Peritubular dentine
- Granular layer of Tomes
What can be seen when viewing areas of dentine where tubules are cut transversely?
What can be seen when viewing areas of dentine where tubules are cut transversely?
What is the composition of peritubular dentine?
What is the composition of peritubular dentine?
What features can be identified using polarised light set-up?
What features can be identified using polarised light set-up?
What type of incremental lines in dentine are 5-8 μm apart?
What type of incremental lines in dentine are 5-8 μm apart?
What is the name of the line that is associated with a general disturbance of growth in the days following birth?
What is the name of the line that is associated with a general disturbance of growth in the days following birth?
What is the purpose of incremental lines in dentine?
What is the purpose of incremental lines in dentine?
What is the name of the incremental line that is not a true growth line?
What is the name of the incremental line that is not a true growth line?
What is the typical spacing of Andresen lines in dentine?
What is the typical spacing of Andresen lines in dentine?
What type of dentine is formed after the tooth has erupted?
What type of dentine is formed after the tooth has erupted?
Which of the following is NOT a type of structural line in dentine?
Which of the following is NOT a type of structural line in dentine?
What is the term for the region of dentine where the odontoblasts are still actively producing dentine?
What is the term for the region of dentine where the odontoblasts are still actively producing dentine?
What is the junction between the enamel and dentine called?
What is the junction between the enamel and dentine called?
What is the term for the direction of dentinal tubules between the enamel-dentine junction and the formative surface?
What is the term for the direction of dentinal tubules between the enamel-dentine junction and the formative surface?
What is the term for the dentine formed before birth?
What is the term for the dentine formed before birth?
What is observed when examining the dentine/pulp border in mature teeth?
What is observed when examining the dentine/pulp border in mature teeth?
Why do the matrices of developing enamel and dentine have different staining properties?
Why do the matrices of developing enamel and dentine have different staining properties?
What is the difference between the development of mantle dentine and circumpulpar dentine?
What is the difference between the development of mantle dentine and circumpulpar dentine?
What can be observed in a ground section of a tooth in polarised light?
What can be observed in a ground section of a tooth in polarised light?
Which tissue forms first during tooth development?
Which tissue forms first during tooth development?
What is the characteristic appearance of the dentine/predentine junction?
What is the characteristic appearance of the dentine/predentine junction?
What is the function of the plexus of Raschkow?
What is the function of the plexus of Raschkow?
What type of nerve fibers are likely to be found in the pulp?
What type of nerve fibers are likely to be found in the pulp?
What is the significance of axons in dentinal tubules?
What is the significance of axons in dentinal tubules?
What is the characteristic of nerves in the pulp of a young tooth?
What is the characteristic of nerves in the pulp of a young tooth?
What is the location of the cell bodies of nerve fibers in the pulp?
What is the location of the cell bodies of nerve fibers in the pulp?
How can you distinguish a young tooth from an old tooth by examining the pulp?
How can you distinguish a young tooth from an old tooth by examining the pulp?
