Diagnosis and Treatment of Necrotising Periodontal Diseases Flashcards

1
Q

what causes necrotising periodontal diseases

A

plaque bacteria

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2
Q

what are the characteristics of NPD

A

rapidly destructive and debilitating
shared predisposing factors - under stress
opportunistic infection

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3
Q

what are the main features of NPD

A

painful, bleeding gums and ulceration and necrosis of interdental papilla - punched out appearance

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4
Q

what is necrotising gingivitis

A

when only gingival tissues infected

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5
Q

what is necrotising periodontitis

A

when necrosis progresses into PDL and alveolar bone leading to attachment loss

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6
Q

what is necrotising stomatitis

A

necrosis progresses into deeper tissues beyond mucogingival line including lip or cheek mucosa and tongue

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7
Q

who does necrotising stomatitis usually occur in

A

malnutrition or HIV infected peopled

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8
Q

what does necrotising stomatitis result in

A

denudation of bone leading to osteitis and oral antral fistula

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9
Q

what is cancrum oris

A

necrotising and destructive infection of mouth and face occurring in malnourished children

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10
Q

what is vincents angina

A

disease of throat

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11
Q

how do you diagnose between different necrotising diseases

A

based on symptoms

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12
Q

what does the gingiva look like in necrotising gingivitis

A

ulcerated and necrotic papillae and gingival margin resulting in a characteristic punched out appearance

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13
Q

what are the ulcers covered with

A

slime made of fibrin, necrotic tissue, leucocytes, erythrocytes and mass of bacteria

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14
Q

what are the symptoms of necrotising gingivitis

A

ulcerated papilla covered in slime
quick developing lesions which are painful
bleed if provoked
first lesions interproximally in mandibular anterior region

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15
Q

what are the symptoms of necrotising periodontitis

A

ulcers with deep pockets
ulcers which develop into craters due to central necrosis
adenopathies in severe cases
fever and feeling of discomfort

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16
Q

why is diagnosis not based on bacterial tests

A

as spirochetas and fusobacterias are not always found in the primary lesion

17
Q

what do you need to differentiate between when deciding if a patient has NPD

A

oral mucositis
HIV associate periodontitis
HSV
scurvy
gingivostomatitis
desquamative gingivitis
invasive fungal disease
illicit drug related gingival disease
agranulocytosis
leukaemia
chronic periodontitis

18
Q

what is herpetic gingivostomatitis caused by

19
Q

who does herpetic gingivostomatitis affect

20
Q

what area in the mouth does herpetic gingivostomatitis affect

A

gingiva and entire oral mucosa

21
Q

what is the symptoms of herpetic gingivostomatitis

A

multiple vesicles which disrupt, leaving small round fibrin covered ulcerations

22
Q

what are the risk factors for NPD

A

stress, sleep deprivation, poor OH, smoking, immunosuppression
malnourished children - developing countries

23
Q

what are the 2 objectives of treatment

A

arrest disease process and tissue destruction
control patients general feeling of discomfort and pain interfering with nutrition and OH

24
Q

what is treatment of NPD

A

superficial debridement to remove deposits daily for as long as acute phase lasts (2-4 days)

25
what should the patient not do during NPD treatment and what should they do instead
no mechanical oral hygiene use chlorhexidine mouthwash instead
26
why should the patient not use mechanical oral hygiene during NPD treatment
it can disrupt healing process after debridement
27
what should you prescribe if patient shows unsatisfactory response to debridement or shows systemic effects
metronidazole 400mg three times daily 3 days
28
why are locally delivered antimicrobials not recommended in NPD
large numbers of bacteria present within tissues where local drug will not be able to achieve adequate concentrations
29
how often should you be seeing NPD patients
every day
30
what do you do once you have treated the acute phase of the disease
treat the pre-existing condition (gingivitis/periodontitis) control systemic predisposing factors
31
why should correction of gingival anatomy be considered
plaque accumulation can occur in the craters
32
what are the options for corrective treatment of the disease
gingivectomy/gingivoplasty procedures periodontal flap surgery regenerative surgery
33
what is the goal during supportive or maintenance phases
compliance with oral hygiene practices and control of predisposing factors
34
what should the patient be screened for if they have NPD and why
HIV as they might not be aware of their condition