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Dentistry Tooth Development And Eruption

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. What cell bodies are involved in the eruption and mineralization process but will be lost after eruption?






2. Tooth development






3. What stage does supernumerary teeth occur?






4. The preameloblasts induce dental papilla cells to differentiate into what?






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






6. What are succedaneous teeth?






7. What are the formative cells for dentin?






8. What are the etiological factors of enamel dysplasia?






9. What are the clinical ramifications of gemination?

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10. When does dens in dente occur?






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






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






13. Which layer in the bell stage has star shaped cells?






14. What are the developmental disturbances of the cap stage?






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






16. The buds of the dental lamina - together with the surrounding ecto mesenchyme - will develop into what?






17. What does the cervical loop consist of?






18. What else undergoes proliferation in the bud stage besides the dental lamina?






19. When does the tooth bud become a tooth germ?






20. Active eruption






21. What is microdontia?






22. What are the clinical ramifications of anodontia?






23. What stage does anodontia occur?






24. What is tubercle?






25. What processes are involved in the bell stage?






26. What are entrapped cementoblasts called?






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






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






29. What is matrix?






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






31. What is dens in dente?






32. What happens when the reduced enamel epithelium is created?






33. What is the primordium of the tooth?






34. What happens during the cap stage?






35. What is the main process involved in initiation?






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






37. How many types of cells are found in the enamel organ in the bell stage?






38. What conveys communications between the cells of the enamel organ - the dental papilla - and the dental sac allowing tissue interactions?






39. What is the time span for initiation?






40. The oral epithelium is induced by the ectomesenchyme to produce what?






41. What is the predominate process in the bell stage?






42. What is macrodontia?






43. What happens during initiation?






44. What happens during the apposition stage?






45. Where is the dental papilla originally derived from?






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






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






48. What is the predominate process of the cap stage?






49. What are the clinical ramifications of enamel dysplasia?






50. What are the formative cells for enamel?