2. Tissue space infection
Space is misnomer so it is clefts
(apotential space between the fascial
layers which contain CT AND Various
anatomical structures ) there is no voids in
the tissue.
10. bacteriology
Aerobes and anaerobes are the causative
agents
Aerobes account for 5%
Anaerobes account for 35%
Both or both account for 60%
11. Life threatening features
Respiratory impairment
Difficulty in swallowing
Impaired vision
Change in voice (hot potato)
Lethargy
Decrease level of consciousness
Agitation, restlessness due to hypoxia
17. Masticator space infection
It is space lie along the lower border of the
mandible,ramus of the mandible and the mscles
of mastications
Outer sheath (masseter ,temporalis muscles)
The inner sheath cover (mylohoid m.)
Poteriorly cover the m.ptregoid m
Parotid space laterally,parapharyngeal space
medially ,it attach to temporal m. superiorly
18. The space of burns (suprasternal )
The superficial layer split below the level
of hyoid to form 2 spaces
The lower part of ant. Triangle (2layers
attach to) sternum
The lower part of post.Triangle (2layers
attach to manibrum of the clavicle
19. The space of burns (suprasternal )
Contents
The sternal head of sternocliedomastoid
Communication between the anterior
jugular v.
Lymph gland
The interclavicular ligament
21. Stages of infection
Periapical abcess
A.infection confined within bone
B.tooth extruded from socket
C.painful tooth to biting and percussion
24. Site of dental infection and direction
of sread from jaw bones
Upper and lower central incisors and
canines and lower premolars the abcess
exit labially
Lower third molars it exit lingually from
bone
From other teeth it exit labially and
occasionally exit palataly or lingually
25. Clincal feature
Rubor (Redness)-calor (heat)-dolar (pain)-
tumor (swelling),fever
(pyrexia),headache,lymphadenopathy,diffi
culty inopening the mouth or swallowingor
brathing,increase salivation, change in
phonation ,bad breath
26. cellulitis
Def.oedematus swelling with all cardinal
signs of inflammation ,it is spreading
infection of loose connective tissue it
caused by streptococcus infection it does
not produce alarge collection of pus.
27.
28.
29.
30. Cellulitis Vs abcess
Duration acute phase
Pain severe generalise
Size large
Localization diffuse
border
Palpation douphy to
induration
Pus No
Seriousness degree
greater
Bacteria aerobic
Chronic phase
Localized
Small
Well circumscribed
Fluctuant
Yes
Less
Anaerobic-mixed
31. periapical Vs periodontal
periapical abcess
1.non vital tooth
2. severe pain
3.sinus formation is
usual
4.tooth tender to
periapical percussion
5.swelling in the apex
Periodontal abcess
1.vital tooth
2.dull pain
3.no sinus formation
4.Tooth tender to
horizontal percussion
5. Swelling in the
middle third of
alveolar process
32. Factors affecting the spread of
infection
1.type and virulance of microorganism
2.the state of pt. Health
3.the efficiency of pt,s immune system
4.failure of pus drainage
33. Anatomical factors influencing the
direction of spread of infection
1.site of the source of infection ;lower or
upper jaw molar region or premolar
,incisor ,canine .anterior or posterior
2.point at which pus escape from bone to
soft tissues ;labiolingual or buccopalatally
3.the natural barrier to spread ;fascia
,muscle ,bone.
34. The spread of infection can be
1.direct depend on the anatomical
barriers
2.by lympatic
3.by blood (haematogenus)
35. pericoronitis
It is inflammation of the soft tissues
covering the crown of partially erupted or
unerupted tooth.it can be
1.unilateral
2.bilateral (infectious mononucleosis or
vincient ulcerative gingivitis
36. pericoronitis
Aetiology unknown
But the causes could be food collection
which is good media for bacteria to florish
due to 1.darkness,moist,food
(nutrition),absence of oxygen (anaerobic
conoization)
42. treatment
Irrigtion e normal saline
Antiboitic
Analgesics
Removal of the cause
Rehydration
Nutrition
Bed rest
Reduction or extaction of opposing tooth or offender
tooth
Operculectomy
Incision and drainage and culture and sensitivity test
43. Sublingual space
Firm painfull swelling in the ant. Part of
floor of the mouth
Raise the tongue
Little not exetnded swelling
44.
45. Sublingual space
Boundery
V-shaped space
Medially the muscles of tongue
(genio,hyoglossus m.)
Inferiorly mylohoid m.
Laterally the lingual aspect of the
mandible
Superiorly the mucosa of the floor of the
mouth.
46.
47.
Surgical therapy aim
1.toget rid of toxic purulent material
2.to decompress the abcess
3.to allow better perfusion of
blood,containing antiboics and defense
elements
To increase the oxygenation of infected
area
49. Submental space
Boundry :Superiorly ;the mylohoid m.
Inferiorly ;skin,platysma, deep cervical
fascia
Laterally; the anterior belley of daigasric
m.
Anteriolaterally ;lingual surface of the
body of the mandible
Posterioly ;the hyoid bone
50. Submental contents
Submental LN embbeded in adipose tissue
The source of infection:tip of the tongue
Lower incisors,anterior part of floor of the
mouth,lower lip skin or infection from the
submandibular space
51. Submandibular space
Surgical anatomy between the anterior
and posterior belly of diagastric m.
Medially the mylohyoid &hyoglossus m.
Inferiorly the investing layer of deep
cervical fascia
Laterally the medial aspect of the
mandible
56. Submandibular space
CF
Swelling of the submandibular region
Pain tenerness,dysphagia
Systemic toxic effect
Discomfort
Difficult opening of the mouth
57. HILTON METHOD
THE METHOD OF OPENING THE ABCESS
ENSURES THAT NO BLOOD VESSELS OR
NERVE IN THE VICINITY IS DAMAGE
58. HILTON METHOD
TOPICAL ANAESTHESIA
STAP INCISION IN MORE FLUCTUATION
REGION
CLOSED FORCEP PUSH TO DEEP FASCIA
OPEN FORCEPS TO DECOMPESS
PLACEMENT OF DRAIN UNTIL SOPP
DRAININD
DRESSING
59.
60.
61. Ludwig angina
Apotential life threatining Bilateral massive
diffuse septic gangernous cellulitis of
submental , sublingual ,submandibular
region
Surgical anatomy of sublingual space
Surgical anatomy of submental space
Surgcal anatomy of submandibular space
69. Ludwig angina
Ttt
massive Antiboitics
Early intubation to control the airway
Nasotracheal intubation,cricotherodotomy and tracheostomy (late
stage)
Surgical drianage
Culture &sensetivity test
Bed rest fluid and electrolytes balance
Monitring of vital signs
Nutrition (multivitamines ,high protein diet (forceval)
analgesics
Folow up
76. Submassetric space
The masseter muscle has 3heads e
insertion into the ramus seprated from
each other by bare areas the space
beteen the middle &deep head called
(submasseteric space) the origin the lower
border and medial surface of zygomatic
arch insertion in the lateral aspect of the
ramus of mandible.
78. Submassetric space
CF
Facial swelling outline the masseter m.
Swelling does not extend beyond the
posterior border of ramus or lift the lobe
of ear (DD.Acute parotitis)
Trismus
Pyrexia,malaise
80. Buccal space
Boundries
Anteriomedially the buccinator m.
Posteriorly :the masseter m.
Laterally ;paotid fascia covered by platysma
Limited below by the attachement of deep
cervical fasciato the mandible &depressor
angularis oris
Limted above by zygomatic process of maxilla
&zygomaticus major and minor.
81.
82.
83. Parotid space
Deep cervical fascia at the angle of the
mandible covere it large swelling posterior
to masseter m.
It raise the lobe of the ear
Doesnot cause trismus
85. Infratemporal space
it form the upper exteremty of the
pterygoid space
Boundry
Laterally the ramus of the mandible
&the temporalis
Medially the lateral ptregoid m plate
Superiorly infratemporal surface of
the greater wing of sphenoid
88. Peritonsillar (QUINSY)
It is locaized infectionin the CT between
the tonsil& superior constrictor m.between
the ant. And pos. pillar of fauces.
Aetiology
Tonsillar cyrpts and supratonsillar fossa
infection
Pericoronal infection.
90. Parapharyngeal space
Lateral pharyngeal space+retrophayngeal
space (Prevertebral spce)
Space form ring around the pharynx
extended to mediastinum and
communicate e submandibular space
anterinferiorly and retromandibular space
posteriorly
92. Lateral pharyngeal space
The medial wall is superior constrictor
The laterl wall the medial ptregoid
m.,down to the angle of the mandible
&Submandibular gland
The posterior border is prevertebral fascia
It consists of 2 components
1.anterior component (muscular)
2.posterior component (vascular )
93. Lateral pharyngeal space
Aetiology
Lower third mlar infection
Tonsillar abscess
Sublingual,submandibular infection
CF
Prexia,malaise,swelling below the angle of
mandible,intraoral swelling in the lateral
wall of pharynx.
97. Retropharyngeal space
Midlinespce between the pharyngobasillar
fascia which attach the pharyngeal
constrictor to base of skull and
prevertebral fascia
Aetiology
Lateral pharyngeal space infection
99. Canine space
Lie deep into muscles of facial expression
involve upper lip (levator labii
superioris,levator angularis oris ,labii
superioris alaeque nasi )
Levator anguli oris below the infraorbital
n.levator labii superioris above it
Short canine level below levator angulii
oris.
100. Canine space
CF
Oedema of upper lip & cheek
Obliteration of nasolabial fold
Drooping of the angle of the mouth
Swelling of medial corner of lower eyelid
Complication cavernous sinus thrombosis
101. Cavernous sinus thrombosis
It is serious condition consisting formation of
thrombus in the cavernous sinus or it is
communicating branches
2routes
External route face,lip –facial –angular vein-
opthalmic v.-superior orbital fissure –cavenous
sinus
Internal route ;dental infection –ptregoid
v.plexus-inferior opth. V. inferior orbital fissure –
cavernus sinus
105. Cavernous sinus thrombosis
Or ptregoid v. plexus –emissary v.-foramen
ovale –cavernous sinus
Rapid complications lead to death because
Short distance from facial region to the
sinus
Frequent anastomosis of vein(direct
communication)
Valveless vessels (no protection )
106. Cavernous sinus thrombosis
TREATMENT
Antiboitics (chlormaphenicol 1g 6h)
Mannitol (reduce oedema)
Anticoagulants (heparin 20000 unit in
1500 ml 5% dextrose)
Surgical drinage
Culture &sensitivity ,bed rest ,fluid
,nutrition,follow up of general heath.