Spreading Infections

Question 1

What bacteria are in carious lessions ?

Answer 1

Strept. mutans

which then go on to create and enviroment for lactobacilli and non strept. mutans strep

Question 2

What bacteria is involved in periodontal diease?

Answer 2

Anaerobes e.g. spirochetes such as treponema denticola

Question 3

What are some LOCAL factors that have an effect on the ammount or path of spread of bacteria?

Answer 3

• anatomical site
• mucosal barriers
• local immune response e.g. acute inflammation

Question 4

What are some SYSTEMIC factors that have an effect on the ammount or path of spread of bacteria?

Answer 4

• AGE
• STRESS
• PREGNANCY
• NUTRITIONAL STATE
• DRUG THERAPY

Question 5

What is Cellulitis?

Answer 5

Cellulitis

Diffuse inflammation of the soft tissues which is not circumscribed or confined to one area but tends to spread through tissue spaces along fascial planes

Question 6

What are the 3 potential Fascial Tissue Planes?

Answer 6

Primary Maxillary space

Primary Mandibular space

Cervical Fascial space

Question 7

What is the first of the primary maxillary space?

Answer 7

Canine space

clinically you will get an inra orbital swelling

Question 8

What happens when an infra temporal space is created due to spread of infection?

Answer 8

rare but serious infaction

Usually upper 8

• Clinically:

• severe trismus
• bulging of temoralis
• cavernous sinus thrombosis

Question 9

What happens when an Submental space is created due to spread of infection?

(Primary mandibular space)

Answer 9

Usually Lower incisors

Clinically:

 Firm swelling under chin

 Discomfort on swallowing

Question 10

When do you refer onto a medic?

Answer 10

Rapidly progressing infection

• Difficulty in breathing
• Difficulty in swallowing
• Involvement of fascial tissue spaces
• Temp > 39ºC
• Severe trismus
• Compromised host defences
• Infection not responding to Rx