embryology

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sweetpea281
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46172
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embryology
Updated:
2010-10-31 11:38:36
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ch10
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Description:
chapter 10 gingival and dentolgingival junctional tissues
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  1. _____ gingiva tightly adheres to bone
    attached
  2. what is the extension of attached gingiva, it is the free gingiva located at the ______.
    • marginal gingiva
    • margin
  3. what is the free edge of the gingiva that you measure recession to this?
    free gingival crest
  4. you measure recession from the _____ to the ____ ____ ____
    • CEJ
    • free gingival crest
  5. what separates the attached gingiva from the marginal gingiva?
    free gingival groove
  6. what is the gingiva between the teeth that prevents food impaction?
    interdental gingiva
  7. what is the concavity in the interdental papilla that forms between the lingual and facial gingival surfaces?
    col
  8. what are the three histological features of the attached gingiva, describe all three?
    • pink: thick layer of parakeratinized epithelium which blocks the vascular supply in the lamina propria
    • stippled: tall narrow papilla in lamina propria that pull on the epithelium and cause the dimples
    • immobile: it is firmly attached to the bone beneath it
  9. what are the histological features of the marginal gingiva, describe each of the three?
    • pink: think layer of parakeratinized epithelium which blocks the vascular supply in the lamina propria
    • no stippling: not attached to bone
    • mobile: not attached to bone
  10. inflammation can cause ____, _____, _____, _____ and _____ ___ _____
    • pain
    • heat
    • erythema
    • edema
    • loss of funciton
  11. _______ is red tissue because of increased blood flow
    erythema
  12. ______ is the interdental papilla is enlarged as it is filled with tissue fluid and may cause the lose of stippling
    edema
  13. what is it called when the free gingival margin starts to move apically, usually exposing cementum
    gingival recession
  14. exposed cementum can cause what?
    sensitivity
  15. what five things can cause gingival recession
    • periodontal disease
    • tooth position
    • incorrect toothbrushing
    • occlusal stress
    • strong frenal attachment
  16. what is overgrowth of the interdental papilla?
    gingival hyperplasia
  17. what three medications can cause gingival hyperplasia?
    • phenytoin sodium (dilantin)-seizure control
    • cyclosporines- immunosuppressant
    • nifedipine- calicum channel blocker (heart med)
  18. where do the tooth surface and gingival tissues meet?
    dentogingival junction
  19. what is the space between the tooth and the gingival tissues?
    gingival sulcus
  20. the _____ _____ can be filled with _____ _____ aka crevical fluid and the normal depth is from ____-____mm
    • gingival sulcus
    • gingival fluid
    • .5-3 mm
  21. what is the epithelium on the inside of the sulcus?
    sulcular epithelium
  22. what is the deeper extension of the sulcular epithelium and lines the floor of the gingival sulcus and is attached to tooth surface?
    junctional epithelium
  23. what is the definite location of attachement between epithelium and enamel, cementum or dentin
    epithelial attachement
  24. while probing, the ______ ______ stops your probe at the bottom of the sulcus.
    epithelial attachement
  25. what are the five types of dentogingival junctional tissues?
    • dentogingival junction
    • gingival sulcus
    • sulcular epithelium
    • junctional epithelium
    • epithelial attachment
  26. what are the six types of gingival tissues?
    • attached gingiva
    • marginal gingiva
    • free gingival crest
    • free gingival groove
    • interdental gingiva
    • col
  27. ____ ____ has a tightly paced epithelium with many desmosomes
    sulcular epithelium
  28. _____ _____ has a smooth junction between the epithelium and lamina propria, no papilla
    sulcular epithelium
  29. how is sulcular epithelium classified?
    nonkeratinized stratified squamous epithelium
  30. how is junctional epithelium classified?
    nonkeratinized stratified squamous epithelium
  31. _____ ______ has loosely packed epithelium with fewer desmosomes
    jnctional epithelium
  32. what is more permeable so white blood cells can come from the blood vessels into the lamina propria and migrate into the epithelium?
    junctional epithelium
  33. in junctional epithelium what do the white blood cells do?
    keep the tissue healthy by protecting it from bacterial plaque
  34. which epithelium is thin?
    junctional epithelium
  35. _____ ______ is thin epithelium only _____ cells thick
    • junctional epithelium
    • 4
  36. the basal layer in junctional epithelium reproduces cells by ______
    mitosis
  37. in junctional epithelium cells don't fill with ______ or _____ like normal layers of epithelium
    • keratin
    • flatten
  38. what are the two types of attachment for sulcular epithelium and junctional epithelium?
    • external basal lamina
    • internal basal lamina
  39. _____ ____ _____ is just the basement membrane, it is the velcro between the epithelium and the lamina propria
    external basal lamina
  40. _____ _____ ____ is a new basement membrane, the velcro between the epithelium and the tooth
    internal basal lamina
  41. what kind of basement membrane is on the inside of the suclus?
    internal basal lamina
  42. which kind of basement membrane is both the lamina lucida and the lamina densa layers?
    internal basal lamina
  43. _____ basal lamina is continuous with the _____ basal lamina
    • internal
    • eternal
  44. what is the development of dentogingival junctional tissues?
    • ameloblasts secrete the initial basal lamina and develop hemidesmosomes
    • during active eruption, the tissue peels awa, but remains attached at the cementoenamel junction. This forms the initial junctional epithelium
    • the definitive junctional epithelium is formed by differnetiation of the cells from the reduced enamel epithelium
  45. the whole process of development of dentogingival jucntional tissue takes how long?
    3 to 4 years
  46. what is the turnover time of junctional epithelium?
    4-6 days
  47. junctional epithelium has an increased ______ allowing ______ out but allowing _____ in
    • permeability
    • WBC
    • bacteria
  48. ______ is described as acute inflammation and is reversible.
    gingivitis
  49. _____ is ulceration of the epithelium exposes ______ ______ of the lamina propria, because of this what could happen with probing?
    • gingivitis
    • blood vessels
    • can injure these vessels and you will get bleeding on probing
  50. a deeper EA causes a deeper ____ ____, this is called ______ ______
    • gingival sulcus
    • periodontal pocket
  51. _______ is apical migration of the epithelial attachment
    periodontitis
  52. with ______ bacterial plaque and toxins penetrate the _____ _____, _____ _____ and ____ and breath them down.
    • periodontitis
    • connective tissue
    • periodontal ligament
    • bone
  53. ____ may be present in periodontitis
    furcations
  54. during ______ the teeth may become _____ as the _____ and _____ _____ are damaged
    • periodontitis
    • mobile
    • bone
    • periodontal ligament
  55. periodontitis is _______
    irreversible

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