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Patho - lecture topics > 8. Regressive changes of teeth; pulpitis, gingivitis and paradentitis > Flashcards

8. Regressive changes of teeth; pulpitis, gingivitis and paradentitis Flashcards

1
Q

regressive changes of teeth

A

enamel hypoplasia/hypomineralisation
chronic flourine toxicosis
acquired odontoporosis
porodontia
cories
parodontosis
pigmnetation
cementum hyperplasia

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2
Q

cause of enamel hypoplasia

A

decrease ameloblast cell activity
ameloblast degeneration
enamel hypoplasia
decreased odontoblast activity

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3
Q

local cause of hypoplasia

A

injury
hypocalcification

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4
Q

why are Ru most at risk of chronic flourine toxicosis

A

near aluminium smelters & fertilisers

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5
Q

what do aluminium smelters contain

A

cryolite which causes the degeneration of ameloblasts and odontoblasts

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6
Q

result of chronic flourine toxicosis on teeth

A

yellow, brown discolouration
erosions in enamel

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7
Q

result of chronic flourine toxicosis in bones

A

Ca metabolism is disturbed
osteomalacia
osteodystophia fibrosa
exostoses in adults
rickets in young

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8
Q

what is odontoporosis

A

lacunar resorption of dentin thus decreasing quality & solidity of teeth

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9
Q

what is porodontia

A

constant wearing of teeth
spontaneous opening of pulp cavity

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10
Q

what is caries

A

a disease of the calcified tissues of teh teeth due to actions of carbs and microorganisms

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11
Q

predisposition of caries

A

food prones to fermentation
mistakes in the teeth structure

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12
Q

where does caries starts

A

at tooth/ oral cavity junction –> chronic progression into deep tooth layers

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13
Q

is there in inflammation in caries

A

no

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14
Q

what happens to inorganic portion in caries

A

decalcification

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15
Q

what happens to organic portion in caries

A

disintegration

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16
Q

aka paradontosis

A

Rigg disease

17
Q

what is paradontosis

A

dystrophy in periodontium w/o inflammation
degeneration/ necrosis of fibres btw alveolus and cement layer

18
Q

main consequence of paradontosis

A

loose teeth

19
Q

what does colour of tooth depend on

A

tickness and translucency of enamel

20
Q

extrinsic discolouration of teeth

A

exogenous pigment accumulated on surface of tooth

21
Q

intrinsic discolouration of teeth

A

pathological changes in substance of teeth that make pigmentation

22
Q

causes of extrinsic

A

bacterial stains
food
bleeding gums
dental restorative materials
medications
metal

23
Q

causes of intrinsic

A

internal (trauma)
systemic infections
medications (ttc)
bilirubin in blood
amelogenesis imperfecta
dentinogenesis imperfecta

24
Q

local factors causing hyperplasia

A

trauma
non fuctional tooth
unopposed tooth
periodontitis
periapical granuloma

25
Q

systemic factors causing hyperplasia

A

idiopathic
pituitary gigantism
acromegaly
arthritis
calcinossi
rheumatic fever

26
Q

consequence of hyperplasia

A

deformed tooth
loss of blood circulation

27
Q

what is acute pulpitis

A

inflammation of dental pulp resulting from untreated caries, trauma, multiple restorations

28
Q

main symptom of acute pulpitis

A

pain

29
Q

reversible pulpitis

A

begins as limited inflammation
tooth savable

30
Q

irreversible pulpitis

A

swelling inside the rigid encasement of dentin
compromised circulation
necrotic pulp

31
Q

chronic pulpitis

A

granulation tissue instead of pulp - ulceration

32
Q

gingivitis types

A

acute/chronic
circumscribed/diffuse
gingivitis ulcerosa
gingivitis necroticans
gingivitis ulceronecrotica
gingivitis marginalis acuta
gingivitis marginalis chronica

33
Q

gingivitis marginalis acuta
common in

A

cats

34
Q

gingivitis marginalis chronica common in

A

dogs

35
Q

parodontitis

A

inflammation of dental supporting tissues
heals with irreversible damage
plaque, tartar
shift to anaerobic oral flora

36
Q

consequence of parodontitis

A

local and systemic chagnes

37
Q

calculus/ tartar

A

hardened dental plaque
provides an ideal surface for further formation

38
Q

consequence of tartar

A

gingival atrophy
gingivitis
peridontisis
loss of teeth
sepsis
malocclusion

Patho - lecture topics (57 decks)

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