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

Question 1

regressive changes of teeth

Answer 1

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

Question 2

cause of enamel hypoplasia

Answer 2

decrease ameloblast cell activity
ameloblast degeneration
enamel hypoplasia
decreased odontoblast activity

Question 3

local cause of hypoplasia

Answer 3

injury
hypocalcification

Question 4

why are Ru most at risk of chronic flourine toxicosis

Answer 4

near aluminium smelters & fertilisers

Question 5

what do aluminium smelters contain

Answer 5

cryolite which causes the degeneration of ameloblasts and odontoblasts

Question 6

result of chronic flourine toxicosis on teeth

Answer 6

yellow, brown discolouration
erosions in enamel

Question 7

result of chronic flourine toxicosis in bones

Answer 7

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

Question 8

what is odontoporosis

Answer 8

lacunar resorption of dentin thus decreasing quality & solidity of teeth

Question 9

what is porodontia

Answer 9

constant wearing of teeth
spontaneous opening of pulp cavity

Question 10

what is caries

Answer 10

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

Question 11

predisposition of caries

Answer 11

food prones to fermentation
mistakes in the teeth structure

Question 12

where does caries starts

Answer 12

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

Question 13

is there in inflammation in caries

Answer 13

no

Question 14

what happens to inorganic portion in caries

Answer 14

decalcification

Question 15

what happens to organic portion in caries

Answer 15

disintegration

Question 16

aka paradontosis

Answer 16

Rigg disease

Question 17

what is paradontosis

Answer 17

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

Question 18

main consequence of paradontosis

Answer 18

loose teeth

Question 19

what does colour of tooth depend on

Answer 19

tickness and translucency of enamel

Question 20

extrinsic discolouration of teeth

Answer 20

exogenous pigment accumulated on surface of tooth

Question 21

intrinsic discolouration of teeth

Answer 21

pathological changes in substance of teeth that make pigmentation

Question 22

causes of extrinsic

Answer 22

bacterial stains
food
bleeding gums
dental restorative materials
medications
metal

Question 23

causes of intrinsic

Answer 23

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

Question 24

local factors causing hyperplasia

Answer 24

trauma
non fuctional tooth
unopposed tooth
periodontitis
periapical granuloma

Question 25

systemic factors causing hyperplasia

Answer 25

idiopathic pituitary gigantism acromegaly arthritis calcinossi rheumatic fever

Question 26

consequence of hyperplasia

Answer 26

deformed tooth loss of blood circulation

Question 27

what is acute pulpitis

Answer 27

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

Question 28

main symptom of acute pulpitis

Answer 28

pain

Question 29

reversible pulpitis

Answer 29

begins as limited inflammation tooth savable

Question 30

irreversible pulpitis

Answer 30

swelling inside the rigid encasement of dentin compromised circulation necrotic pulp

Question 31

chronic pulpitis

Answer 31

granulation tissue instead of pulp - ulceration

Question 32

gingivitis types

Answer 32

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

Question 33

gingivitis marginalis acuta common in

Answer 33

cats

Question 34

gingivitis marginalis chronica common in

Answer 34

dogs

Question 35

parodontitis

Answer 35

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

Question 36

consequence of parodontitis

Answer 36

local and systemic chagnes

Question 37

calculus/ tartar

Answer 37

hardened dental plaque provides an ideal surface for further formation

Question 38

consequence of tartar

Answer 38

gingival atrophy gingivitis peridontisis loss of teeth sepsis malocclusion