theory

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sweetpea281
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49594
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theory
Updated:
2010-11-14 20:49:04
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ch12part2
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Description:
Wilkins Ch. 12 The Gingiva Part 2
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  1. what is the gingiva nearest to the incisal/occlusal surface?
    gingival margin
  2. what marks the opening of the sulcus?
    gingival margin
  3. _______ _______ covers the free gingiva from the gingival groove up over the gingival margin and is keratinized
    oral epithelium
  4. what type of gingiva is close around each tooth and attaches at the coronal protion of the junctional epithelium
    free gingiva
  5. what is tight to the tooth and the probe goes under it?
    free gingiva
  6. what is the junction of the free gingiva and the attached gingiva called?
    free gingival groove
  7. what is the approximate level of the free gingival groove?
    bottom of the sulcus
  8. the free gingival groove is visible in a _____ of teeth
    third
  9. what is located in the crevice between the free gingiva and the tooth?
    gingival sulcus
  10. where is the base of the gingival sulcus?
    coronal margin of the attached tissues (bottom of the pocket)
  11. what is the inner and outer boundries of the gingival sulcus?
    • inner-tooth surface
    • outer-sulcular epithelium
  12. sulcular epithelium is continuous with ____ _____
    oral epithelium
  13. t/f sulcular epithelium is keratinized
    false-nonkeratinized
  14. when is there fluid in the gingival sulcus
    when it is diseased (pus)
  15. t/f the gingival sulcus has no fluid when health
    true
  16. what is the cuff like band of stratified squamous epithelium that is continuous with the sulcular epithelium and completely circles the tooth
    junctional epithelium
  17. what shape is the junctional epithelium in cross section?
    triangular
  18. is junctional epithelium keratinized or non keratinized?
    nonkeratinized
  19. junctional epithelium has _____ ______ layers
    2 basement layers
  20. where are the 2 basement layers of junctional epithelium located?
    • one adjacent to connective tissue
    • one adjacent to the tooth surface
  21. junctional epithelium is __-__ cells thick where it joins the sulcular epithelium
    15-20
  22. junctional epithelium is __-__ cells thick at the apical end
    1-2
  23. the length of the junctional epithelium is ____-___ mm
    .25-1.35
  24. as the junctional epithelium gets farther down the tooth it gets _____ and is more susceptible to _____
    • thinner
    • disease
  25. what happens to the junctional epithelium as eruption occurs, during eruption, full eruption and attachemtn migration?
    • as eruption occurs it attaches to the enamel
    • during eruption it migrates toward the CEJ
    • at full eruption it attaches on cementum
    • attachment migration along the root surface with wear of incisal surface and with periodontal infections
  26. when does the junctional epithelium recede?
    when you get disease you get attachment loss
  27. if you get attachement loss of the junctional epithelium what happens?
    disease gets into the PDL and into the bone and causes bone loss
  28. what is the distance betweenthe base of attachment and crest of alveolar bone?
    1.0-1.5 mm
  29. the ____ is maintained in disease when the _____ move along the root surface and ____ ____ occurs
    • distance
    • epithelium
    • bone loss
  30. what does the junctional epithelium provide at the base of the sulcus?
    seal
  31. how is the attachment accomplished with the junctional epithleium
    hemidesomoses and basal lamina of the junctional epithelium
  32. what is attached gingiva continuous with?
    oral epithelium of the free gingiva
  33. is attached gingiva keratinized or non keratinzied
    keratinized
  34. what is the maxillary palatal gingiva continuous with?
    palatal mucosa
  35. how is the attached gingiva attached?
    firmly bound to underlying cementum and alveolar bone
  36. what is the shape of the attached gingiva?
    follows the depressions between the eminences of the roots of the teeth
  37. what is the junction of the attached gingiva and the alveolar mucosa called?
    mucogingival junction
  38. how does the mucogingival junction appear on anterior and posterior?
    • anterior line is scalloped
    • posterior line fairly straight
  39. what is the contrast seen at the mucogingival junction?
    • attached gingiva is pink keratized and stippled
    • and the alveolar mucosa is darker
  40. where is the mucogingival junction located?
    facial of all quadrants and lingual surface of mandibular arch (no maxillary arch)
  41. do you have a mucogingival junction on the lingual of the maxillary arch
    no
  42. why don't you have a mucogingival junction on the ____ _____?
    • lingual maxillary
    • because the hard palate doesn't have alveolar mucosa
  43. what type of tissue is movable tissue that is loosely attached to the underlying bone, it has a smooth, shiny surface.
    alveolar mucosa
  44. is alveolar mucosa keratinzed or nonkeratinized?
    nonkeratinized
  45. t/f the underlying vessels may be seen through alveolar mucosa
    true
  46. what is a narrow fold of mucous membrane that passes from a more fixed to a movable part?
    frena/frenum
  47. what is the function of the frena/frenum
    check undue movement
  48. where are the frena/frenum located?
    • maxillary and mandibular anterior-lips
    • lingual-tongue
    • buccal-cheeks
  49. where is the interdental papilla located?
    interproximal space
  50. what is continuous with the free and attached gingiva (also know as an embrasure)?
    interdental papilla
  51. describe type 1 interdental papilla
    • healthy (knife edge)
    • gingival tissue fills the space
  52. describe type 2 interdental papilla
    • blunted papilla or small void (cervical embrasure)
    • slight to moderate recession
  53. describe type 3 interdental papilla
    • flat papilla-complete loss of papilla
    • extensive recession
  54. if a frena/frenum is too tight on the lip or tongue what will it cause?
    • lip-recession
    • tongue-anklyglossia
  55. what is the shape of the interdental papilla for wide spaced teeth?
    flat, saddle shaped (still healthy)
  56. what is the shape of the interdental papilla for crowded teeth?
    tapered or narrow
  57. what is the shape of the interdental papilla in the anterior teeth?
    pointed, pyramidal
  58. what is the shape of the interdental papilla for posterior teeth?
    flatter
  59. when would you see flat saddle shaped interdental papilla?
    wide spaced teeth
  60. when would you see tapered and narrow interdental papilla
    crowded teeth
  61. what is the depression between the lingual and facial papillae
    col
  62. the col conforms to the ____ ____ ____
    proximal contact area
  63. is the center of the col keratinized or nonkeratinized?
    nonkeratinized
  64. where does perio start the most?
    the col
  65. since the col is _______ it makes it _____ ____ to disease
    • non-keratinized
    • more susceptible

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