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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 are the clinical ramifications of fusion?






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






3. What is concrescence?






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






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






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






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






8. What are the formative cells for alveolar bone?






9. What is the cementum matrix called?






10. What is the embryological background for enamel?






11. What is an enamel pearl?






12. Passive eruption






13. What is matrix?






14. What are supernumerary teeth?






15. What are the clinical ramifications of concrescence?






16. What is dens in dente?






17. What hard tissue has vascularity?






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






19. What is cementogenisis?






20. What are the formative cells for cementum?






21. What are succedaneous teeth?






22. What are the clinical ramifications of gemination?

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






24. When does dens in dente occur?






25. What type of tissue is enamel?






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






27. What are the etiological factors for supernumerary teeth?






28. What is amelogenisis?






29. What are the etiological factors for fusion?






30. When root formation is completed the portion of the basement membrane disintegrates its cells may become what?






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






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






33. What are the clinical ramifications?






34. What are the mature cells for enamel?






35. Active eruption






36. What are the incremental lines for cementum and alveolar bone?






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






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






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






40. What processes are involved with the apposition stage?






41. What is the time span for initiation?






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






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






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






45. What is the structure responsible for root development?






46. Where is the dental sac originally derived from?






47. What are the clinical ramifications of dens in dente?






48. How is the reduced enamel epithelium created?






49. What is gemination?






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