DH theory

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DH theory
2010-12-14 16:13:22
chapter fourteen

periodontal disease development
Show Answers:

  1. a pocket formed by gingival enlargment without apical migration of the junctional epithelium
    gingival pocket
  2. What 2 types are pockets divided into?
    • gingival
    • periodontal
  3. are deep perio structures involved in gingival pockets?
  4. What type of tooth wall is in gingival pockets?
  5. Where is the base of the sulcus in a gingival pocket?
    near the cementoenamel junction
  6. What is the pockets position in relation to the alveolar bone? (suprabony or intrabony)
    ALL gingival pockets are suprabony
  7. the base of the pocket is coronal to the crest of the alveolar bone
  8. Pocket formed as a result of disease that causes the junctional epithelium to migrate apically along the cementum
    periodontal pocket
  9. Is the attachment apparatus (periodontal ligament, cementum, alveolar bone) involved in periodontal pockets?
  10. What is the tooth wall in a periodontal pocket?
    • cementum
    • or part cementum and part enamel
  11. Where is the base of the pocket in a periodontal pocket?
    on the cementum at the level of attached periodontal tissue
  12. are periodontal pockets subra or intrabony
    they may be either one of them
  13. pocket in which the base of the pocket is below, or apical to the crest of the alveolar bone
  14. Is a periodontal pocket wide or narrow?
  15. The periodontal pocket epithelial lining is_________to and follows the_______of the tooth
    • adjacent
    • contours
  16. true or false. When calculus deposits are present in the periodontal pocket, the pocket wall will follow the contour of the calculus
  17. true or false. The deeper the periodontal pocket, the less it can be cleaned by a tooth brush
  18. What are 5 substances that can be found in a periodontal pocket?
    • microorganisms
    • fluid
    • epithelial cells
    • leukocytes
    • purulent exudate
  19. The periodontal pocket deepens as a result of continuing action of the________and _________ from dental biofilm
    • irritants
    • destructive agents
  20. The periodontal ligament fibers in a periodontal pocket become________and the junctional epithelium migrates________
    • detached
    • apically
  21. What are 3 different changes that alter the cementum in a periodontal pocket?
    • physical
    • structural
    • chemical
  22. What are 4 surface changes that occur in periodontal pockets as a result of the exchange of minerals with oral fluids and exposure to biofilm bacteria?
    • hypermineralization of calc on cementum
    • demineralization
    • calculus formation - in layers
    • dental biofilm and debris collection
  23. How are surface irregulatories detected supragingivally?
    drying the surface and observing it under adequate light
  24. How are surface irregularities detected subgingivally?
    tactile and auditory sensitivity with a probe or explorer
  25. What are 5 causes of surface roughness on enamel?
    • structural defects - cracks and grooves
    • demineralization - cavities
    • calculus and stain
    • erosion and abrasion
    • hypoplasia pits
  26. What are 3 causes of surface roughness on the CEJ?
    • overlap
    • meet
    • gap
  27. What percent of teeth have a CEJ with:
    • 60-65%
    • 30%
    • 5-10%
  28. What are 6 causes of surface roughness on the root surfaces?
    • diseased cementum
    • root caries
    • abrasion
    • calc
    • overhang restorations
    • grooves from previous instrumentation