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What are the main sources of infection?
*periapical abscess
*periodontal abscess
*infected wounds i.e extraction site
What are the possible directions of spread?
*PDL into mouth
*from furcation areas laterally as a gum boil
*along fascial spaces
*rarely in skin
What is the spread of infection in soft tissue called?
Cellulitis
What is the spread of infection in bone called?
osteomylitis
What does the spread of infection depend on?
*angulation of tooth
*position of apex
*thickness of alveolar bone
*related structures i.e sinus/muscle attachment
What are the important muscles in the spread of infection?
*mylohyoid, masseter, buccinator, superior constrictor
What are some important tissue spaces?
*submandibular, submaxillary, sublingual, submental, parapharyngeal, infraorbital, submasseteric
What are the effects of severe infection?
*pain/swelling
*fever
*lymph node enlargement
*spread to critical areas....airway/brain
How do you manage infection?
*drainage
*antibiotics
*protect airway
*manage fever
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