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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.
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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 mature cells for enamel?






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






3. What is the embryological background for enamel?






4. What are the mature cells for alveolar bone?






5. What are the etiological factors for dens in dente and gemination?






6. What will the dental sac give rise to?






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






8. What are the mature cells for dentin?






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






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






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






12. What happens during the bell stage?






13. What are supernumerary teeth?






14. What is amelogenisis?






15. What is the time span for initiation?






16. What is the structure responsible for root development?






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






18. What are the clinical ramifications of enamel pearl?






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






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






21. What are the etiological factors for anodontia?






22. What processes are involved with the apposition stage?






23. What are the etiological factors for enamel pearl?






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






25. What is enamel dysplasia?






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






27. What happens during initiation?






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






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






30. What happens during the bud stage?






31. What happens during the maturation stage?






32. What are the incremental lines for enamel?






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






34. What stage does the dental tissues subsequently fully mineralize






35. What happens during the appositional stage?






36. What hard tissue has vascularity?






37. What are the clinical ramifications of supernumerary teeth?






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






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






40. What is the primordium of the tooth?






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






42. What are entrapped cementoblasts called?






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






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






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






46. What do the odontoblasts do?






47. What is the cap in the cap stage?






48. What happens during the cap stage?






49. What are the etiological factors for fusion?






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







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