Necrotising Periodontal Disease Flashcards
What is the classification of necrotising ulcerative gingivitis (NUG)?
When only the gingival tissue is affected
What is the classification of necrotising periodontitis?
When the necrosis progresses into the PDL and alveolar bone, leading to attachment loss
What is the classification of Necrotising Stomatitis?
When the necrosis progresses to deeper tissues beyond the mucogingival line, including the lip or cheek mucosa, the tongue etc.
What are the symptoms of necrotising gingivitis?
Ulcers are covered by a yellow/white membrane- termed pseudomembrane
When this membrane is removed, underlying connective tissue becomes exposed and bleeds
Lesions develop quickly
Very painful
Bleeds easily
Bad taste
Systemic involvement
What are the symptoms of necrotising periodontits?
Ulcerations associated with deep pocket formation as gingival necrosis coincides with loss of crestal alveolar bone
Ulcers with central necrosis develop into craters
Fever and a general feeling of discomfort
Why is the diagnosis of necrotising conditions not based on tests?
Histopathology is not characteristic for NPD
Variable flora involved and no characteristic microbiology
What are the bacteria associated with NPD?
Treponema
Fusobacterium
P. intermedia
What are the risk factors for NUG?
Immunosuppression (i.e. aids, HIV)
Stress
Young
Poor OH
Smoking
What is the treatment of NUG?
OHI
Chlorhexidine - prevents plaque accumulation
Hydrogen peroxide
Metronidazole
What is chlorhexidine?
Antiseptic mouthwash
Name 4 side effects of chlorhexidine.
Staining
Taste disturbance
Anaphylaxis
Dry Mouth
Hypersensitivity
What is the mechanism of action of chlorhexidine?
Cationic molecule that binds to the negatively charged bacterial cell walls.
It destabilises the cell wall and interferes with osmosis causing the cell to leak and die
Has a broad spectrum (works against more microorganisms)
