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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. What are the incremental lines for dentin?






2. What is matrix?






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






4. What processes are involved in the bell stage?






5. What is an enamel pearl?






6. What are supernumerary teeth?






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






8. What is the cementum matrix called?






9. What is gemination?






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






11. When does dens in dente occur?






12. What happens during the apposition stage?






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






14. What is the process involved in the maturation stage?






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






16. What are the etiological factors of enamel dysplasia?






17. What is another name for the dental sac?






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






19. What is dens in dente?






20. What are the clinical ramifications of enamel dysplasia?






21. What does the cervical loop consist of?






22. What is enamel dysplasia?






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






24. What are the mature cells for enamel?






25. How is the reduced enamel epithelium created?






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






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






28. When does macro/microdontia occur?






29. What are the clinical ramifications of enamel pearl?






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






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






32. What will the inner cells of the dental lamina differentiates into?






33. Where is the dental sac originally derived from?






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






35. What is the time span for initiation?






36. What are the etiological factors of tubercle?






37. What happens during initiation?






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






39. What is anodontia?






40. What happens during the bell stage?






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






42. What stage does the dental tissues subsequently fully mineralize






43. What are the mature cells for alveolar bone?






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






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






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






47. What are the etiological factors for anodontia?






48. What is concrescence?






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






50. What are succedaneous teeth?