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Dentistry Tooth Development And Eruption

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Where is the enamal organ originally derived from?






2. Do odontoblasts start their secretion of matrix before the ameloblasts?






3. What are succedaneous teeth?






4. What are the mature cells for cementum?






5. What is the inner mass in the cap stage that forms a concavity of the enamel organ?






6. What are the clinical ramifications of enamel dysplasia?






7. What are the formative cells for enamel?






8. What is the important acelluar structure that seperates the oral epithelium and the ectomesenchyme?






9. Odontoblasts leave attached cellular extensions in the length of the predentin called what?






10. When does the process of root development take place?






11. When the undifferentiated cells of the dental sac come into contact with the root dentin they differentiate into what?






12. What is the function of the Hertwig's epithelial root sheath?






13. When the inner epithelial epithelium columnar cells elongate and repolarize they differentiate into what?






14. What will the dental papilla eventually form?






15. The remaining ectomesenchyme surrounding the outside of the enamel organ condenses into what?






16. Where is the enamel matrix secreted from by the ameloblasts?

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17. What causes the induction of the preameloblasts to differentiate into ameloblasts?






18. What processes are involved in the bell stage?






19. What kind of cells occur in the inner enamel epithelium?






20. What stage does supernumerary teeth occur?






21. What is the time span for the cap stage?






22. What are the clinical ramifications of enamel pearl?






23. What is concrescence?






24. What hard tissue is can not have tissue formation after eruption?






25. What is the embryological background for dentin - cementum and alveolar bone?






26. The stellate reticulum is located inner or outer?






27. What is the time span for the bell stage?






28. What happens during the maturation stage?






29. What are the etiological factors for anodontia?






30. What are the cell layers found in the enamel organ in the bell stage?






31. In the cap stage the tooth bud does not grow - what happens?






32. What hard tissue is innervated by nerves?






33. What is the outer portion of the ectoderm in the initiation stage?






34. What are the development disturbances of the apposition and maturation stages?






35. What are the 2 layers in the dental papilla within the concavity of the enamel organ?






36. What stage does the dental tissues subsequently fully mineralize






37. What happens during the cap stage?






38. What is the main process involved in initiation?






39. What will the dental sac give rise to?






40. What is enamel dysplasia?






41. What is the cementum matrix called?






42. What is tubercle?






43. What are the etiological factors of tubercle?






44. What are entrapped cementoblasts called?






45. What happens during the bud stage?






46. What are the mature cells for alveolar bone?






47. What are the clinical ramifications of micro/macrodontia?






48. After the enamel apposition ceases the crown area of each primary or permanent tooth what happens?






49. When does dens in dente occur?






50. Where is the dental papilla originally derived from?