Space infection of SUB mand,mental & lingual.ppt

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1. Submandibular spaceSubmandibular space

BoundariesBoundaries
–medially: hyoglossus medially: hyoglossus
and digastric mucleand digastric mucle
–Laterally: superficial Laterally: superficial
fascia and skinfascia and skin

Clinical featuresClinical features
–Infection from Infection from
mandibular molarsmandibular molars
–Swelling near angle Swelling near angle
of jawof jaw

2. Sublingual spaceSublingual space
BoundariesBoundaries
–superiorly:mucosa of floor of mouthsuperiorly:mucosa of floor of mouth
–Inferiorly:mylohyoid muscleInferiorly:mylohyoid muscle
–Anteriorly and laterally:body of mandibleAnteriorly and laterally:body of mandible
–medially:median raphe of tonguemedially:median raphe of tongue
–posteriorly:hyoid boneposteriorly:hyoid bone
Clinical featuresClinical features
–Infection from perforation of lingual cortical plateInfection from perforation of lingual cortical plate
–Swelling in the floor of mouthSwelling in the floor of mouth
–Dyspnoea and dysphagiaDyspnoea and dysphagia

3. Submental spaceSubmental space

Extend from anterior Extend from anterior
border of border of
submaxillary space to submaxillary space to
the midline and is the midline and is
limited in depth by limited in depth by
mylohyoid musclemylohyoid muscle

Clinical featuresClinical features
–Anterior swelling in Anterior swelling in
submental areasubmental area
–Dyspnoea and Dyspnoea and
dysphagiadysphagia

4. Spread of infection from Spread of infection from
mandibular teethmandibular teeth
From incisor-labial abscess,submental space From incisor-labial abscess,submental space
abscessabscess
From canine-labial or vestibular abscessFrom canine-labial or vestibular abscess

From premolars-vestibular,sublingual abscessFrom premolars-vestibular,sublingual abscess

From molars-1From molars-1
stst
molar:vestibular abscess,buccal molar:vestibular abscess,buccal
space abscess,sublingual abscessspace abscess,sublingual abscess

22
ndnd
molar: vestibular or buccal space molar: vestibular or buccal space
abscess ,sublingual /submandibular abscess ,sublingual /submandibular
abscess,pterygomandibular/submasseteric abscess,pterygomandibular/submasseteric
abscessabscess

5. SPACESPACE SOURCESOURCE CLINICAL FEATURESCLINICAL FEATURES
SUBMANDIBULAR SPACESUBMANDIBULAR SPACE Mandibular molarsMandibular molars Swelling near angle of the Swelling near angle of the
jawjaw
Abscess is triangle begin Abscess is triangle begin
in the lower border of in the lower border of
mandible extending to mandible extending to
the level of hyoid bonethe level of hyoid bone
SUBLINGUAL SPACESUBLINGUAL SPACE Infection directly from Infection directly from
perforation of lingual perforation of lingual
cortical platecortical plate
Swelling of floor of Swelling of floor of
mouth,dyspnea,dysphagiamouth,dyspnea,dysphagia
SUBMENTAL SPACESUBMENTAL SPACE Mandibular anterior teethMandibular anterior teethAnterior swelling in Anterior swelling in
submental submental
area,dyspnea,dysphagiaarea,dyspnea,dysphagia