Fascia & Facial Spaces & Infections Flashcards Preview

Oral Anatomy > Fascia & Facial Spaces & Infections > Flashcards

Flashcards in Fascia & Facial Spaces & Infections Deck (29)
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1

Fascia surrounds what?

Organs and tissues

2

What kind of tissue is fascia and fascial spaces?

Deep or superficial to the skin?

Fibrous connective tissue

Deep

3

Superficial fascia:

Location:

Function:

Compostition:

Just deep to skin

Allows skin to move independent of deeper structures

Varying thickness of irregularly arranges CT and fat

4

Deep fascia:

Location:

Function:

Composition:

Surrounds bones, muscles, nerves, and vessels.

Protection

Dense, inelastic, fibrous tissue

5

Deep fascia of the face

Temporal:

Masseteric parotid

Pterygoid

Covers temporal is muscle to zygomatic arch

Masseter muscle and parotid gland

Medial surface of medial Pterygoid

6

Deep cervical fasciae: investing and vertebral fascia

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

Masseteric- parotid fascia

Submandibular and parotid glands

SCM and trapezius

Encloses vertebrae, spinal cord and associated muscles

7

Deep cervical-carotid sheath and visceral fascia:

Surrounds:

Cranial:

Visceral trachea:

Carotids and SCM

CN 10

Esophagus and thyroid gland

8

Fascial spaces

Definition:

Necessity:

Potential spaces between fascial layers (loose CT)

Understand the spread of infection and complications with local anesthetics

9

Maxillary Vestibular Space
(2 pts)

1. Medial to Buccinator
2. Lateral to oral mucosa

*lodged in mucosa
Ex:more in dogs

10

Mandibular Vestibular Space
(2 pts)

1. Medial to Buccinator
2. Lateral to Oral Mucosa

*communicates with body of Mandibular space

11

Canine Space
(3 pts)

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

12

Buccal Space
(2 pts)

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

*communicates with Posterior teeth both maxillary and Mandibular

13

Parotid Space (around parotid)
(2 pts)

1. Envelopes the parotid gland
2. Also contains external carotid retromandibular vein and CN 7

14

Mandibular Body Space
(3 pts)

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.

15

Submental space
(2 pts)

1. Mylohyoid (sup to submental space)
2. Anterior bellies of digastric superficial cervical fascia

16

Submandibular space
(3pts)

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

17

Sublingual space
(3 pts)

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

*Ludwigs angina- closes off airway

18

Infectious process
(3 pts)

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

*plus a few more factors

19

Dental infections
(3 dental infections)

1. Abscess
2. Cellulitis
3. Osteomyelitis

20

Signs of infection

Inflammation: HERP
Heat
Edema
Redness
Pain

21

Abscess infection
(3 pts)

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

Cellulitis infection
(3 pts)

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

Osteomyelitis infection
(3 pts)

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

The spread of dental infections can go into...
(4)

Sinus
Blood stream
Lymphatics
Spaces

25

Sinusitis: spread of infection
(3 pts)

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

26

Bacterium: spread of infection
(3 pts)

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

Lymphatics: spread of infection
(4 pts)

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

28

Fascial spaces: spread of infections
(2 pts)

1. Single space infections
2. Ludwigs angina

29

Prevention of infections
(3 pts)

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