Fascia & Facial Spaces & Infections Flashcards

1
Q

Fascia surrounds what?

A

Organs and tissues

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2
Q

What kind of tissue is fascia and fascial spaces?

Deep or superficial to the skin?

A

Fibrous connective tissue

Deep

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3
Q

Superficial fascia:

Location:

Function:

Compostition:

A

Just deep to skin

Allows skin to move independent of deeper structures

Varying thickness of irregularly arranges CT and fat

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4
Q

Deep fascia:

Location:

Function:

Composition:

A

Surrounds bones, muscles, nerves, and vessels.

Protection

Dense, inelastic, fibrous tissue

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5
Q

Deep fascia of the face

Temporal:

Masseteric parotid

Pterygoid

A

Covers temporal is muscle to zygomatic arch

Masseter muscle and parotid gland

Medial surface of medial Pterygoid

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6
Q

Deep cervical fasciae: investing and vertebral fascia

Continuous with…
Encloses..
Encases..
Vertebrae..

A

Masseteric- parotid fascia

Submandibular and parotid glands

SCM and trapezius

Encloses vertebrae, spinal cord and associated muscles

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7
Q

Deep cervical-carotid sheath and visceral fascia:

Surrounds:

Cranial:

Visceral trachea:

A

Carotids and SCM

CN 10

Esophagus and thyroid gland

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8
Q

Fascial spaces

Definition:

Necessity:

A

Potential spaces between fascial layers (loose CT)

Understand the spread of infection and complications with local anesthetics

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9
Q

Maxillary Vestibular Space

2 pts

A
  1. Medial to Buccinator
  2. Lateral to oral mucosa

*lodged in mucosa
Ex:more in dogs

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10
Q

Mandibular Vestibular Space

2 pts

A
  1. Medial to Buccinator
  2. Lateral to Oral Mucosa

*communicates with body of Mandibular space

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11
Q

Canine Space

3 pts

A
  1. Deep to skin, zygomatic us minor and Levantine labii superioris
  2. Canine fossa of maxilla
  3. Can swell eye enough to close it
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12
Q

Buccal Space

2 pts

A
  1. Lateral to Buccinator
  2. Medial and Anterior to Masseter

*communicates with Posterior teeth both maxillary and Mandibular

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13
Q
Parotid Space (around parotid)
(2 pts)
A
  1. Envelopes the parotid gland

2. Also contains external carotid retromandibular vein and CN 7

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14
Q

Mandibular Body Space

3 pts

A
  1. Encases mandible from symphysis to anterior edge of medial pterygoid and masseter
  2. Communicates with many other spaces: vestibular space, Buccal, submental, sublingual, submandibular
  3. Communication easy once periosteum breachea.
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15
Q

Submental space

2 pts

A
  1. Mylohyoid (sup to submental space)

2. Anterior bellies of digastric superficial cervical fascia

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16
Q

Submandibular space

3pts

A
  1. Mylohyoid (medial and inferior)
  2. Mandible
  3. Lateral and posterior to submental space
17
Q

Sublingual space

3 pts

A
  1. Mylohyoid
  2. Mandible
  3. Oral mucosa and tongue

*Ludwigs angina- closes off airway

18
Q

Infectious process

3 pts

A
  1. Virulence of the organism
  2. Resistance of the host
  3. Dose

*plus a few more factors

19
Q

Dental infections

3 dental infections

A
  1. Abscess
  2. Cellulitis
  3. Osteomyelitis
20
Q

Signs of infection

A
Inflammation: HERP
Heat
Edema
Redness 
Pain
21
Q

Abscess infection

3 pts

A
  1. Local area of trapped pathogens
  2. Death of tissue-suppuration or exudate(pus)
  3. Fistula
  • body tries to fight off, becomes pimple looking on guns, kills tissues and nerve and can go through bone
  • least worse out of 3
22
Q

Cellulitis infection

3 pts

A
  1. Diffuse edema from inflammation
  2. Origin is an infection
  3. Generally more dangerous than an abscess
    (2nd worst out of dental infection)
    *ludwigs angina is a type of cellulitis
    *multiple spaces involved
    *caused by underlying health or something uncontrolled.
23
Q

Osteomyelitis infection

3 pts

A
  1. An inflammation of bone marrow
  2. May create sequestration of bone
  3. More common in mandible, but can happy anywhere in mouth

*worst out of the 3 dental infections

24
Q

The spread of dental infections can go into…

4

A

Sinus
Blood stream
Lymphatics
Spaces

25
Q

Sinusitis: spread of infection

3 pts

A
  1. Maxillary sinusitis
  2. Usually upper respiratory infection(tract origin)
  3. Usually respond well with antibiotics
26
Q

Bacterium: spread of infection

3 pts

A
  1. Bacteria in blood stream
  2. Usually transient and not an issue in healthy patients
  3. May need to use antibiotics before some dental care in some patients
27
Q

Lymphatics: spread of infection

4 pts

A
  1. Infection of mandibular anterior tooth
  2. Submental
  3. Submandibular
  4. Superior deep cervical
28
Q

Fascial spaces: spread of infections

2 pts

A
  1. Single space infections

2. Ludwigs angina

29
Q

Prevention of infections

3 pts

A
  1. Through history
  2. Early diagnosis and treatment
  3. Rinses and rubber dam (isolates a tooth so infection can’t spread to others)