6 - Endodontic infection Flashcards

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1
Q

What is endodontic infection?

A
  • usually secondary to tooth infection/trauma
  • derived from endogenous microflora (found in the mouth)
  • often opportunistic infections
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2
Q

What are the normal bacteria associated with endodontic infection?

A
  • bacteroides
  • prevotella
  • lactobacillus
  • streptococcus
  • clostridium
  • fusobacterium
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3
Q

Describe primary endodontic infections.

A
  • polymicrobial
  • dominated by gram negative anaerobic rods
  • e. faecalis is found in 4-40% of infections
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4
Q

Describe secondary endodontic infections.

A
  • only a few bacterial species
  • dominated by gram positive bacteria
  • 9x more likely to contain e. faecalis than 1y
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5
Q

What is e. faecalis?

A
  • enterococcus faecalis
  • gram positive coccus found in pairs or alone
  • facultative anaerobe
  • aggregative and adhesive in biofilm formation (LTA)
  • superoxide formation
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6
Q

Define facultative anaerobe.

A

An organism that can create ATP from oxygen when present, but switch to anaerobic methods in the absence of oxygen

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7
Q

How does candida albicans affect endodontic infections?

A
  • combines with e faecalis in infection
  • can block dentinal tubules and create tolerance to treatment regimes
  • assists in rebound of infection
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8
Q

What is the best combination to treat secondary endodontic infections?

A

Sodium hypochlorite and EDTA

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