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BDS3 OSCE > OSCE 1 > Flashcards

OSCE 1 Flashcards

1
Q

why do we record smile line

A

to get an idea of how much tooth will show when smiling

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2
Q

why do we record centre lines

A

so the midline of the teeth matches the midline of the patients face

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3
Q

why do we record canine line

A

dictates the size of tooth to be used

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4
Q

why do we record residual alveolar line

A

so the teeth are set in such a way above the lower residual ridges that the contacts are on this line

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5
Q

why do we record rim profile

A

to ensure adequate lip support

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6
Q

what are the transfer lines for pros we note

A

high smile line
centre line
canine line
residual alveolar ridge
alveolar contour line
rim profile

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7
Q

what is the value of fluoride in mouthwash

A

225ppmF

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8
Q

from what age can fluoride mouthwash be given

A

7 years old

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9
Q

what is the treatment for someone potentially ingesting 5mg/ kg bodyweight of fluoride

A

give milk and observe

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10
Q

what is the treatment for someone potentially ingesting 5-15mg/kg bodyweight fluoride

A

give milk and send to hospital

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11
Q

what is the treatment for someone potentially ingesting 15mg/kg bodyweight fluoride

A

hospital and IV calcium gluconate

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12
Q

what is the max safety tolerated dose of fluoride

A

1mg/ kg bodyweight

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13
Q

what are the seven factors for caries risk assessment

A

diet
plaque control
fluoride use
medical history
social history
DMFT
saliva

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14
Q

what would 1000ppmF toothpaste be used for

A

6months - 6years unless low risk

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15
Q

what would 1450 ppmF toothpaste be used for

A

over 6 years old for low risk kids
over 3 years old for high risk kids

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16
Q

what is 2800ppmF toothpaste used for

A

over 10 year olds high risk

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17
Q

what is 5000ppmF toothpaste used for

A

over 16 year olds high risk

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18
Q

what is the concentration of fluoride in mouthwashes for over 6 year olds

A

225ppmF or 0.5%

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19
Q

what are red radiograph holders used for

A

bitewings for coronal of posterior teeth

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20
Q

what are yellow radiograph holders used for

A

posterior periapical for image of a complete tooth including root

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21
Q

what are green radiograph holders used for

A

endo for identifying working lengths

22
Q

what are blue radiograph holders used for

A

anterior periapical for complete anterior tooth including root

23
Q

what size film should be used for bitewings

A

2

24
Q

what size film should be used for anterior PA and endo radiographs

A

0

25
Q

what size film should be used for posterior PA and endo

A

2

26
Q

what size of film should be used for a deciduous bitewing radiograph

A

0

27
Q

what should be included in a diet diary

A

3 days
write down everything consumed at the time
1 weekend day and 2 week days

28
Q

what thickness of stainless steel is used for orthodontic retentive wire

A

0.7mm

29
Q

what thickness of stainless steel is used for active component wire in orthodontic s

A

0.5mm

30
Q

what are the dimensions of a bite plane

A

overjet plus 3mm

31
Q

what is the action of warfarin

A

inhibits vitamin K activity - inhibiting coagulation

32
Q

what does INR stand for

A

international normalised ratio

33
Q

what is the maximum INR value to undertake extractions

A

4

34
Q

what drugs interact with warfarin

A

antibiotics, carbamazepine, metronidazole, ibuprofen

35
Q

why should NSAIDs not be used after extractions with a patient taking warfarin

A

antiplatelet effect will increase bleeding time

36
Q

what is the treatment for necrotising gingivitis

A

ultrasonic debridement, chlorhexidine mouthwash and OHI

37
Q

what is the standard drug treatment for necrotising gingivitis

A

metronidazole 200mg 3xday for 3-5 days

38
Q

what is an alternative drug treatment to metronidazole 200mg 3 times per day for 3-5 days

A

amoxicillin 250mg 3xday for 7-10 days

39
Q

what are three predisposing factors for necrotising gingivitis

A

stress, smoking, poor OH

40
Q

what is the purpose of EDTA in endodontics

A

removes smear layer

41
Q

what concentration of EDTA is usually used in endodontics

A

15%

42
Q

what is the normal concentration of sodium hypochlorite used in endodontics

A

0.5% - 5%

43
Q

what is the purpose of sodium hypochlorite

A

disinfects and dissolves pulpal remnants, disrupts organic portion of the smear layer

44
Q

what is the purpose of chlorhexidine use in endodontics

A

disinfect canals - used 0.2%

45
Q

why are paper points placed in the canal before medicating or obturating

A

to ensure the canal is dry

46
Q

what are two examples of medicaments used for endodontics

A

Ultracal - non-setting calcium hydroxide
Ledermix - corticosteroid and antibiotic mixture

47
Q

what is non-setting calcium hydroxide used for in endodontics

A

as an intervisit medication to prevent infection

48
Q

why might a corticosteroid/ antibiotic mixture be used as a medicament in endodontics

A

an intervisit medication for hot, infected pulps to reduce inflammation

49
Q

what are the two types of obturation materials used in endodontics

A

gutta percha points
resilon

50
Q

how are gutta percha points placed in the canal

A

cold lateral compaction or thermafill which requires AHSPlus sealant

51
Q

how is resilon used to obturate canals

A

requires epiphany sealant

BDS3 OSCE (4 decks)

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