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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. Where does the primordium of the permanent dentition develop?






2. Where is the dental sac originally derived from?






3. What happens during the apposition stage?






4. What are the etiological factors of tubercle?






5. Which teeth are nonsuccedaneous?






6. When does dens in dente occur?






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






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






9. What is the structure responsible for root development?






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






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






12. What are the etiological factors for micro/macrodontia?






13. What are the formative cells for dentin?






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






15. How is the reduced enamel epithelium created?






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






17. What are the odontoblastic processes is contained in what?






18. What are the clinical ramifications of gemination?

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19. What is concrescence?






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






21. What are the clinical ramifications of concrescence?






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






23. What is the main process involved in the bud stage?






24. What wll the inner enamel epithelium differentiate into?






25. What hard tissue is innervated by nerves?






26. What is cementogenisis?






27. What are the incremental lines for enamel?






28. What are the mature cells for dentin?






29. What is tubercle?






30. What is dens in dente?






31. What processes are involved with the apposition stage?






32. Where is the enamal organ originally derived from?






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






34. What are succedaneous teeth?






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






36. What is the embryological background for enamel?






37. What is the cementum matrix called?






38. What will the dental papilla eventually form?






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






40. What is microdontia?






41. What do the odontoblasts do?






42. What happens during the appositional stage?






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






44. What cell bodies are involved in the eruption and mineralization process but will be lost after eruption?






45. What are the etiological factors for supernumerary teeth?






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






47. What is the time span for initiation?






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






49. What are the etiological factors for enamel pearl?






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







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