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Perio Comps > Etitology of Periodontal Diseases > Flashcards

Etitology of Periodontal Diseases Flashcards

1
Q

what is the primary etiology of periodontal disease?

A

periodontal pathogens in a susceptible host

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2
Q

most periodontal pathogens are what?

A

obligate anaerobes

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3
Q

Aa is what type of pathogen?

A

facultative anaerobe

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4
Q

many perio pathogens are what?

A

gram-negative rods and cocci

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5
Q

which pathogen produces collagenase?

A

Porphyromonas gingivalis (Pg)

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6
Q

which pathogen produces leukotoxins?

A

Aa

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7
Q

pathogens that produce leukotoxins are capable of what?

A

destroying WBCs

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8
Q

biofilm protects pathogens from what?

A

host immunity and antibiotics

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9
Q

“orange complex” bacteria

A
  1. Fusobacteria
  2. Prevotella
  3. Campylobacter
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10
Q

“red complex” bacteria

A
  1. Porphyromonas gingivalis
  2. Tannerella forsythia
  3. Treponema denticola
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11
Q

which complex does Aa belong to?

A

green complex

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12
Q

bacteria associated with gingivitis?

A

Actinomyces species

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13
Q

bacteria associated with chronic periodontitis pathogens

A
  1. Aggregatibacter (Aa)
  2. Porphyromonas (Pg)
  3. Tanerella (Tf)
  4. Prevotella (Pi)
  5. Campylobacter (Cr)
  6. Eikenella (Ec)
  7. Spirochaetes
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14
Q

bacteria associated with localized aggressive periodontitis?

A

Aggregatibacter (Aa) - best example of pure infection

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15
Q

bacteria associated with generalized aggressive periodontitis

A

similar microorganisms to chronic periodontitis

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16
Q

what are the most pathogenic periodontal pathogens?

A

“red complex” pathogens

17
Q

local factors that contribute to plaque retention

A
  1. calculus
  2. defective restorations (overhangs, defective crown margins)
  3. caries
  4. open contacts/diastemas
  5. gingival contours
  6. tooth malposition
  7. pockets
  8. furcations
  9. close root approximation
  10. tooth anatomic abnormalities
18
Q

peridontal occlusal trauma

A

injury to the periodontium (apical to crest) from occlusal forces may injure bone, cementum and PDL

19
Q

radiographic signs of occlusal trauma

A
  1. widened PDL
  2. angular bone loss
  3. changes in trabecular bone
20
Q

clinical signs of occlusal trauma

A
  1. progressive mobility
  2. fremitus
  3. vertical root fracture
21
Q

systemic factors of perio disease

A
  1. diabetes
  2. medically compromised patients
  3. pregnancy
  4. stress
22
Q

what is accumulated in diabetic patients?

A

Advanced Glycation End-products (A.G.E.)

23
Q

what is the most proven risk factor for perio disease?

A

smoking

24
Q

T/F: smokers have a greater amount of bone loss than non-smokers, greater incidence of NUG/NUP and show more breakdown following periodontal therapy

A

true

25
Q

known risk factors that will increase odds-ratio of perio disease with attachment loss are?

A
  1. smoking

2. diabetes

26
Q

risk indicators (not conclusively proven) of perio disease include what?

A
  1. stress
  2. genetic predisposition for excessive production of interleukin-1
  3. systemic disease and conditions that suppress the immune system
  4. nutrition
  5. age
  6. osteoporosis
  7. obesity
27
Q

predisposing factors of gingival recession

A
  1. root prominence
  2. thin periodontal tissue biotype
  3. hx of ortho
  4. restoration with a subgingival margin in a thin periodontal biotype
28
Q

etiology of recession in predisposed areas may be from what?

A
  1. over-aggressive or faulty tooth brushing

2. lack of oral hygiene leading to inflammation in thin gingival tissues

29
Q

T/F: once gingival recession has occurred, it is likely to continue unless treated by gingival grafts

A

true

Perio Comps (12 decks)

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