Infection oms (1)

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Infection oms (1)

  1. 1.  Infection  Trait  Arising  Mutation  Diagnosis  Treatment Conception Anatomy Route Influence factors Principles Principles
  2. 2. Infectious agent(bacteria) Host Inflammatory reaction protective and defensive Beneficial Elimination the infectious pathogen Repair tissue injury Harmful Hypersensitivity Autoimmune disease
  3. 3. Oral and nasal cavity  Tooth  Space  Blood and Lymphoid system  Bacteria 
  4. 4. Bacteria---Exist Oral and nasal cavity  Maxillary sinus  Temperature + Moisture (Beneficial) Reproduction + Developing
  5. 5. Tooth Caries Alveolar bone Pulpitis Soft tissue Apical infection Facial space
  6. 6. Fascial space ---loose connective tissue Among skin, maxillary and muscle •Purulent--- spreading way •Do not exist in healthy state •Become filling during infection
  7. 7. Blood and lymphoid system Beneficial Abundance Harmful Cavernous sinus thrombosis Encephalic infection Dangerous triangle •Lacking valves •Cavernous sinus
  8. 8. Micro Flora   Varied Numerous • Sterile • Simple • Complex     Streptococcus hemolyticus Staphylococcus aureus Escherichia coli Anaerobe
  9. 9.  Odontogenic infection  Adenogenous infection  Traumatic infection  Hematogenous infection  Iatrogenic infection
  10. 10. • Periapical infection • Pericoronitis
  11. 11. Fistular Cellulitis Intraoral soft tissue abscess Septicemia Acute-chronic Periapical infection Deep fascial space infection Osteomyelitis Ascending facialcerebral infection
  12. 12. Lower third molar
  13. 13.  Local Signs and Symptoms  Systemical Signs and Symptoms
  14. 14. Locally Pain  Swelling  Surface erythema  Pus formation  Limitation of motion 
  15. 15.      Fever Lymphadenopathy Malaise Toxic appearance Elevated white blood cell count
  16. 16. Acute stage  Chronic stage 
  17. 17. Host  Antibiotic therapy  Surgical drainage and incision 
  18. 18. Defense Mechanisms   Migration of white blood cell Production of antibodies Critical Principles   Most important factor --- final outcome The infections--- cured by the host, not by antibiotics
  19. 19. Antibiotic era causative organism  sensitivity  specific, narrow-spectrum antibiotic  least toxic antibiotic  drug history(success, allergic and toxic) 
  20. 20. Proper dose  Proper time interval  Proper route of administration(oral, parenteral)  Combination antibiotic therapy 
  21. 21. How to judge the pus formation?  Purposes of surgical drainage and incision  Principles of surgical drainage and incision 
  22. 22. Characteristic Three stages Inoculation     Cellulitis Abscess   Duration--- >5 days Palpation---Fluctuant Appearance---Reddened Needle aspiration B-ultrasound CT
  23. 23. Rid the body of toxic purulent material  Decompress the tissues  Allowing better perfusion of blood containing antibiotics and defensive elements  Increased oxygenation of the infected area 
  24. 24. Ludwig’s angina
  25. 25. Place the incision in an esthetically acceptable  Place the incision in a dependent position to encourage drainage by gravity  Dissect bluntly through deeper tissues and explore all portions of the abscess  Place a drain and stabilize it with sutures 
  26. 26. Principles of surgical drainage & incision
  27. 27. Chronic stage Surgical removal of the focus  Lesion tooth---Impacted tooth  Osteomyelitis
  28. 28. Infection in oral & maxillo-facial region The trait of Infection  Odontogenic infection  mutation of infectious  Diagnosis of the infection  Diagnosis of the abscess formation  The principles of the treatment 

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