Dental disease- Periodontal disease Flashcards
What do we expect to see in healthy gingvia?
Colour: pink
Texture: stipling
Margins: defined (knife edge and scalloped)
What is gingival crevicular fluid?
This is liquid that contains antibodies and so is used for host defence.
What do you see in the mouth of a patient with gingivitis?
Colour: red
Texture: no stipling
Margins: inflamed.
Plaque score: high
Bleeding score: high
Compare the immune response occuring in a healthy mouth compared to one that is suffering from gingivitis?
Healthy mouth:
- some gingival crevicular fluid
- Phagocytes/ Lymphocytes and complement.
Gingivitis:
- Increased flow of gingival crevicular fluid
- Increased lymphocytes and monocytes.
- Influx of neutrophils.
Why do the gingiva bleed on probing?
Because the Epithelium becomes uclerated
Why does cleaning teeth reverse gingivitis?
It removes the microbial challenge.
Compare gingivitis and periodontitis (definitions)
Gingivitis is inflamation of the soft tissues.
Periodontitis is inflamation of the soft and hard tissues.
At first sight- How does a patient presenting with periodontitis differ to a patient with gingivitis?
At first glance, they don’t.
You need to probe in order to see the difference.
On probing a patient with periodontitis will have pockets.
Compare true and false pockets
True pockets are when the pockets are due to LOSS of attachment and migration of the junctional epithelium.
False pockets are due to inflamation of the tissues.
Discuss the loss of attachment in a dental patient?
The rate of loss of attachment can be unpredictable so we have to monitor it.
What is the biofilm?
A layer of micro-organsisms found on the teeth- They interact in symbiosis.
Describe the biofilm in a patient suffering from periodontitis?
It is dysbiotic = unbalanced. Causing the inflammation
Discuss the mechansims that contribute to the mouth’s host immune response
Saliva- the immune response that protects the teeth (made of antiboides and enzymes e.g. S-Iga/ lyzozyme)
Gingival Crevicular fluid (will bathe the area)
Inflammatory and Immune response (neutrophils)
Epithelium (as a physical barrier which sheds cells and produces inflammatory mediators. The gingival tissues allow neutrophils to transvere through)
What determines bone resorption?
The inflamatory Mediators produced.
How do antibodies protect the immune system?
activating complement
marking bacteria (opzonisation) for phagocytosis
inhibiting adhesion and invasion
Neutralising toxins.