Name 7 PRIMARY fascial spaces
- Maxillary:
- infratemporal
- canine
- buccal
- mandibular
- buccal
- submental
- submandibular
- sublingual
name 8 secondary fascial spaces
- superficial and deep temporal spaces
- masticator region
- submasseteric space
- pterygomandibular (pterygoid)
- lateral pharyngeal
- retropharyngeal
- prevertebral
teeth most likely to cause absess in canine (infraorbital) space
upper anterior teeth, bicuspids but almost always maxillary canine
borders of canine (infraorbital) space
posteriorly by anterior surface of maxilla
superiorly by infraorbital margin
anteriorly by levator anguli oris and levator labii superioris
boundaries of buccal space
lateral: superficial fascia and skin of cheek
Medial: buccinator muscle
Inferior: mandible and superficial fascia
Superior: zygomatic arch and maxilla
Posterior: parotid gland and pterygomandibular raphe
Anterior: superficial fascia and muscles of lips
teeth most likely to cause absess in buccal space
maxillary and mandibular molars or premolars
infections of buccal space can travel where?
to pterygomandibular space, submaseeteric space, deep and superficial temporal spaces and lateral pharyngeal space
borders of submental space
anterosuperiorly: mental symphysis (apex)
posteroinferiorly: hyoid bone
superolaterally: anterior belly of digastrics
floor: myloyoid muscle
roof: superficial fascia containing platysma
contents of submental space
anterior jugular vein, submental lymph nodes
what spaces does submental space communicate with?
submandibular space posteriorly
teeth most likely to cause absess in submental space?
mandibular incisors
borders of submandibular space
laterally: superficial fascia and body of mandible
medially: mylohyoid muscle
superiorly: mylohyoid line of mandible and mylohyoid muscle
inferiorly: hyoid bone
contents of submandibular space
- submandibular gland
- lymph nodes
- hypoglossal nerve
- nerve to mylohyoid
- facial artery and submental branch
what other spaces does the submandibular space communicate with?
superficial spaces, sublingual region, parotid region, masticator regoin
teeth most likely to cause absess in submandibular space
mandibular molars with roots BELOW the mylohyoid line
sublingual space boundaries
lateral: body of mandible
medially: base of tongue
inferiorly: mylohyoid muscle
superiorly: mucosa of floor of mouth
contents of buccal space
buccal fat pad
contents of sublingual space
- sublingual gland
- deep submandibualr gland and duct
- lingual nerve and submandibular ganglion
- lingual artery and brances
- hypoglossal nerve
what spaces does the sublingual space communicate with?
submandibular region
masticator regoin
teeth most likely to cause absess in sublingual space
mandibular molars and premolars with roots ABOVE mylohyoid line
ludwigs angina
infection involving bilateral sublingual, submandibualar, and submental spaces
odontogenic in 90% of cases
from second and third molars 75% of time
can become retropharyngeal and mediastinal infection if spread through buccopharyngeal gap
boundaries of superficial and deep temporal spaces
Superficial: between temporal fascia and temporalis muscle
Deep: between temporalis muscle and lateral surface of skull
contents of superficial and deep temporal spaces
loose aerolar tissue
what spaces do superficial and deep temporal spaces communicate with?
infratemporal region, ptergopalatine fossa, masticator region
teeth most likely to cause absess in superficial and deep temporal spaces
mandibular 3rd molars
boundaries of masticator region
on either side of mandibular ramus, cervical fasica ascending from neck splits
3 subdivisions of masticator region
infratemporal, masseteric (submasseteric), pterygomandibular space
teeth most likely to cause absess in masticator region
2nd and 3rd mandibular molars
boundaries of infratemporal space
anterior: maxilla
posterior: parotid gland
medial: lateral pterygoid plate
lateral: temporalis muscle
superior: sphenoid bone
inferior: lateral pterygoid muscle
masseteric space boundaries
anterior: buccal fascia
posterior: parotid fascia
medial: mandible
lateral: masseter muscle
superior: lateral pterygoid muscle
inferior: mandible
pterygomandibular space boundaries
medial: medial pterygoid
lateral: mandible
superior: lateral pterygoid muscle
inferior: mandible
anterior: buccinator
posterior: parotid fascia and mandible
teeth most likely to cause absess in pterygomandibular space
2nd or 3rd molars
contents of pterygomandibular space
inferior alveiolar nerve, artery and vein, lingual nerve and chorda tympani
pterygomandibular space communicates with
superficial temporal, parapharyngeal, buccal, submasseteric, submandbular
