Clinical Correlation: Odontogenic Infections Flashcards
Odontogenic infection involves extension through
enamel → dentin → pulp of tooth
Once the infection gets to the apex of the root, it eventually perforates through ___, which creates a
buccal or lingual cortex of jaw
subperiosteal abscess
Infections go through what kinds of pathways?
pathway of least resistance
if an infection is in the lateral pharyngeal & retropharyngeal, what can it lead to?
airway compromise due to swelling & hard to breathe
If an infection is in the maxillary, what can it lead to?
cavernous sinus thrombosis, postseptal orbital infection, intracranial infection
If an infection is in the pretracheal/danger space, what can it lead to?
Infection in the mediastinum
Once infection spreads to ___, it can go into chest
Prevertebral
What are the low severity primary spaces?
Vestibular, infraorbital, buccal, palatal
What are the moderate severity spaces?
Submandibular, sublingual, submental, masticator
What are the high severity spaces?
Lateral pharyngeal, pretracheal, danger space, mediastinum, intracranial
Masticator spaces refers to
ANY space below the muscles of mastication
What are the 4 masticator spaces?
- Pterygomandibular
- (sub)masseteric
- Superficial temporal space
- Deep temporal space
Examples of maxillary spaces
canine space, intraorbital, & periorbital
Where is the buccal space located? Can it be from maxillary, mandibular or both?
Located lateral to buccinator muscle
Can be from maxillary or mandibular tooth
Where is the sublingual space located?
Below tongue, medial to mandible, & above (superior) mylohyoid
You may be able to drain ___ space intraorally, but it’s mostly done extraorally
Sublingual space
Where is the submandibular space located?
Below (inferior) mylohyoid, deep to platysma
Sign of infection in submandibular/sublingual space?
inferior border of mandible often not palpable
Which tooth is mostly affected in the submandibular/sublingual space? why?
3rd molar b/c their root apex is inferior to the mylohyoid line
2nd molar is sometimes associated
Effects of submandibular/sublingual space infection
firm swelling down to neck, possible voice changes, & possible trismus
You almost always have some trismus w/ ___. You may not have it w/
masticator infections
submandibular space infection
Location of submental spaces
Below mylohyoid, in between anterior digastric muscle
Location of para/retropharyngeal spaces.
Is this space located in primary or secondary spaces?
Lateral pharyngeal (below), retropharyngeal included
Secondary, but can be primary
Uvula deviation is an effect of an infection in the ___ space
para/retropharyngeal spaces
