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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 kind of cells reside in the stratum intermediate?






2. What are the etiological factors for anodontia?






3. What happens during initiation?






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






5. What is the embryological background for enamel?






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






7. What happens during the cap stage?






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






9. What are the mature cells for alveolar bone?






10. What happens during the apposition stage?






11. What type of tissue is enamel?






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






13. What are the clinical ramifications of concrescence?






14. What hard tissue has vascularity?






15. What are supernumerary teeth?






16. What happens during the bell stage?






17. What are the clinical ramifications of enamel pearl?






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






19. When does dens in dente occur?






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






21. What is the site for the future dentioenamel junction?






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






23. What is macrodontia?






24. The stratum intermediate is located inner or outer?






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






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






27. What are the etiological factors of enamel dysplasia?






28. What is tubercle?






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






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






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






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






33. The stellate reticulum is located inner or outer?






34. How is the dentinocemental junction formed?






35. What is dens in dente?






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






37. What are the etiological factors for enamel pearl?






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






39. What happens during the bud stage?






40. What are the mature cells for dentin?






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






42. Where is the enamal organ originally derived from?






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






44. What wll the inner enamel epithelium differentiate into?






45. What are the resorptive cells for enamel - dentin - cementum and alveolar bone?






46. When does macro/microdontia occur?






47. What processes are involved in the bell stage?






48. What is gemination?






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

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50. What is anodontia?