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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 processes are involved in the bell stage?






2. What is the cementum matrix called?






3. The stratum intermediate is located inner or outer?






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






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






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






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






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






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






10. What will the outer cells of the dental lamina differentiate into?






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






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






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






14. What are the mature cells for enamel?






15. What are the clinical ramifications of supernumerary teeth?






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






17. What are the development disturbances of the apposition and maturation stages?






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

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19. What are the etiological factors for fusion?






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






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






22. What wll the inner enamel epithelium differentiate into?






23. What are the clinical ramifications of enamel pearl?






24. What are the incremental lines for enamel?






25. What are the incremental lines for dentin?






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






27. What are the etiological factors for enamel pearl?






28. What are the etiological factors for supernumerary teeth?






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






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






31. What are the formative cells for alveolar bone?






32. What is the time span for the bell stage?






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






34. What is the main process involved in initiation?






35. What is microdontia?






36. What is enamel dysplasia?






37. How is the dentinocemental junction formed?






38. What type of tissue is enamel?






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






40. What hard tissue has vascularity?






41. What processes are involved with the apposition stage?






42. What stage does supernumerary teeth occur?






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






44. What are the mature cells for cementum?






45. What is dens in dente?






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






47. What is matrix?






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






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






50. What is the cap in the cap stage?






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