Chapter 24: Digestive System Infections - Upper Bacterial Flashcards
1
Q
What are dental carries?
A
cavities
2
Q
Which bacteria are involved in cavities? (2)
A
- many different involved
- most important is Streptococcus mutans
3
Q
How does Streptococcus mutans cause cavities? (2)
A
- converts sugar slime layer that sticks to teeth
- lactic acid fermentation degrades tooth enamel
4
Q
How do you prevent cavities?
A
- brushing teeth
- fluoride hardens tooth enamel to make it resistant to acid
5
Q
What is periodontal disease?
A
- gum disease, gingivitis
6
Q
What causes periodontal disease? (2)
A
- Plaque bacteria get trapped between teeth
- enzymes produced degrade gum tissue and cause inflammation
7
Q
What is gingivitis?
A
- inflammatory response - bleeding of the gums
8
Q
How do you prevent periodontal disease?
A
brushing and flossing
9
Q
How do you treat periodontal disease?
A
- in advanced cases, antibiotics and surgery
10
Q
What bacterium causes gastritis?
A
Helicobacter pylori
11
Q
What is responsible for most stomach ulcers?
A
- H. pylori
12
Q
What occurs in gastritis? (3)
A
- H. pylori produces ammonia to combat stomach acidity
- degrades stomach’s protective mucous
- stomach acid then damage tissue
13
Q
How do you treat gastritis?
A
- antibiotics in combination with medication to inhibit stomach acid production
14
Q
What virus causes oral Herpes Simplex?
A
HSV-1
15
Q
What type of infection is Oral Herpes Simplex? (2)
A
- latent infection
- up to 90% infection rate but often asymptomatic
