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DDS1-microbio > orofacial bacterial infections > Flashcards

orofacial bacterial infections Flashcards

1
Q

dentoalveolar abscess

A

pus in structures surrounding teeth

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2
Q

periapical abscess

A
  • originates in pulp
  • secondary to caries and pulpitis
  • bacterial invasion of alveolar bone
  • most common in children
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3
Q

periodontal abscess

A
  • PDL and alveolar bone

- most common in adults

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4
Q

reversible pulpitis

A
  • mild
  • caused by caries encroaching on pulp
  • pain with hot/cold
  • tx: resto
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5
Q

irreversible pulpitis

A
  • if not treated
  • severe
  • pain is spontaneous, persistent, and poorly localized
  • tx: root canal or ext
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6
Q

what can happen if the cellulitis is associated with upper teeth

A

risk of cavernous sinus thrombosis

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7
Q

periodontitis related abscess originates from

A

biofilm in PD pocket

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8
Q

non periodontitis related abscess

A

from another local source

  • tooth is alive (vital pulp)
  • physical blockage of PD pocket
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9
Q

what causes PD abscesses

A

gram NEG ANAEROBIC rods bacteria

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10
Q

if inflammed pulp is not treated, it leads to

A

necrosis => apical periodontitis

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11
Q

apical periodontitis

A

-pain is severe, spontaneous, persistent, and LOCALIZED to affected tooth

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12
Q

dry socket

A

alveolar osteitis

-anaerobic bacteria (halitosis) cause fibrinolysis

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13
Q

peri-implantitis

A
  • periodontitis around implant
  • causes bone loss
  • plaque induced
  • AA, p gingivalis, p intermedia, f nucleatum
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14
Q

osteomyelitis of the jaws

A
  • polymicrobial
  • alpha hemolytic strep
  • anaerobic (peptostrep, fusobacterium, prevotella)
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15
Q

OM of the jaws following trauma

A
  • staph epidermidis

- difficult to treat (treatment is prolonged)

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16
Q

deep fascial space infections usually arise from which teeth

A

lower 2nd and 3rd molars

17
Q

deep fascial space infections - bacteria

A

normal oral flora

-anaerobic can be present

18
Q

tx for deep fascial space infections

A

penicillin

-add clindamycin if anaerobic too

19
Q

cavernous sinus thrombosis mechanism

A
  1. bacteria and clot travel towards the back from upper lip and face via ANTERIOR FACIAL VEIN
  2. or.. infection spreads from PTERYGOID SPACE VIA PTERYGOID PLEXUS OF VEINS
20
Q

symptoms of cav sinus thromb

A
  • eyelids swell
  • eyeball protrusion
  • dilated facial v
  • restricted eyeball
  • bleeding from retina
21
Q

ludwig’s angina

A
  • swelling of head and neck
  • dentoalveolar infection *usually dental source of infection *usually 2nd and 3rd mand molars
  • difficult breathing
  • bilateral
  • submand and subling involved
  • begins in floor of mouth
22
Q

non odontogenic bacterial infections of the oral cavity

A
  • pericoronitis
  • bacterial sialadenitis
  • angular cheilitis
  • ulcerative mucositis
  • noma
23
Q

ulcerative mucositis

A
  • chemtotherapy associated

- bacteria and yeast

24
Q

noma

A
  • polymicrobial

- opportunistic in immunocompromised

25
Q

pericoronitis

A
  • food trapped behind 3rd molars

- strict anaerobic bacteria: p intermedia, anaerobic strep, fusobacteria, AA, tannerella forsythia

26
Q

what can happen if drainage is interrupted in periocoronitis

A

infection spreads along fascial planes and go into soft tissue and bone

27
Q

bacterial sialadenitis

A
  • infection of salivary glands
  • S aureus
  • parotid: xerostomia
  • submand: salivary stone blocks duct
28
Q

angular cheilitis

A
  • infection at corners of mouth/lips
  • s aureus and candida (bacteria + yeast)
  • use TOPICAL ANTIMICROBIALS
29
Q

acute necrotizing ulcerative gingivitis

A
  • painful infection of gums
  • trench mouth
  • immunosuppression
  • anaerobic bacteria (fusobacteria and spirochetes)
30
Q

actinomyces species

A
  • cause actinomycosis

- filamentous, gram +, avirulent, OPPORTUNISTIC, can cross tissue planes!

31
Q

cervicofacial actinomycosis

A
  • actinomyces species (A israelii)
  • rock-hard induration
  • drain spontaneously through the skin

DDS1-microbio (10 decks)

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