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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 dental papilla originally derived from?






2. What happens to the thickened non tooth producing portions of the dental lamina eventually?






3. Where does the primordium of the permanent dentition develop?






4. What are the etiological factors for supernumerary teeth?






5. The stratum intermediate is located inner or outer?






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

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7. What is the primordium of the tooth?






8. What are supernumerary teeth?






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






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






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






12. Active eruption






13. What stage does anodontia occur?






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






15. What are the formative cells for alveolar bone?






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






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






18. What are the major components of the tooth germ?






19. What is the site for the future dentioenamel junction?






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






21. What is the embryological background for enamel?






22. What happens during the bell stage?






23. What hard tissue has vascularity?






24. What are the clinical ramifications of gemination?

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25. When does dens in dente occur?






26. The stage named for extensive proliferation of the dental lamina into oval masses penetrating into the ectomesenchyme?






27. What is the cap in the cap stage?






28. What are the etiological factors for enamel pearl?






29. What is fusion?






30. What stage does the dental tissues subsequently fully mineralize






31. What is dens in dente?






32. What are the resorptive cells for enamel - dentin - cementum and alveolar bone?






33. What are the formative cells for dentin?






34. What happens during the maturation stage?






35. What type of tissue is enamel?






36. What layer serves as protection for the enamel organ?






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






38. What are the clinical ramifications?






39. What are the incremental lines for dentin?






40. Passive eruption






41. What do the odontoblasts do?






42. What is tubercle?






43. What are the mature cells for cementum?






44. What kind of cells occur in the outer enamel epithelium in the bell stage?






45. What kind of cells reside in the stratum intermediate?






46. What is concrescence?






47. What are the clinical ramifications of anodontia?






48. What type of tissue is dentin - cementum - and alveolar bone?






49. What are entrapped cementoblasts called?






50. What are the incremental lines for enamel?