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MOD 5 ENDODONTICS > Pulp sensitivity testing > Flashcards

Pulp sensitivity testing Flashcards

1
Q

what does pulp sensibility test

A

sensory nerve fibres - Alpha delta nerve fibres in the dentine-pulp complex

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2
Q

what is the most accurate determinant of pulp vitality

A

vascular supply
NOT PULPAL INNERVATION

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3
Q

what fibres innervates dentine

A

A delta and A beta fibres

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4
Q

what does stimulation of A delta and A beta fibres result in

A

acute sharp pain - movement of dentinal fluid

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5
Q

what fibres innervate the body pulp

A

unmyelinated C fibres

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6
Q

what does stimulation of unmyelinated C fibres result in

A

dull burning pain - pain can radiate

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7
Q

4 types of pulp sensibility testing

A

thermal
electric pulp
test cavity prep
LA

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8
Q

what does a normal response imply

A

vital or RP

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9
Q

what does an intense, prolonged response imply

A

IP

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10
Q

what does no response imply

A

necrotic pulp
false negative (calcified canal, immature apex, recent trauma)

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11
Q

what does an increased response to heat imply

A

pulpal/ periapical pathology

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12
Q

what does cold testing differentiate

A

RP and IP

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13
Q

cold test IP result

A

pain lingers after removal of stimulus

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14
Q

cold test RP result

A

pain subsides on removal of stimulus

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15
Q

what is used for cold tests

A

ethyl chloride 5 degrees
endofrost (propane/ butane/ isobutane) -50 degrees

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16
Q

what does heat activate

A

C fibres

17
Q

what can be used for heat testing

A

hot water
GP stick heated in flame

18
Q

what does electric pulp test stimulate

A

A delta nerves in pulp-dentine complex

19
Q

where should EPT be places

A

incisal third of anterior tooth
tip of MB cusp in molars

20
Q

positive EPT response

A

presence of sensory A delta nerve fibres

21
Q

negative EPT response

A

pulpal necrosis

22
Q

indications for laser doppler flowmetry

A

pulp testing in children
trauma
monitoring revascularisation of replanted teeth
differential diagnosis of periapical radiolucencies

23
Q

what is laser doppler flowmetry

A

measures the presence of moving red blood cells within a tissue

24
Q
A

MOD 5 ENDODONTICS (14 decks)

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