OSCE Revision Flashcards
(153 cards)
transfer lines for pros and why we note them
high smile line - can get idea of how much tooth will show when smiling
centre line - midline of teeth matches midline of ptx face
canine line - dictates size of tooth to be used
residual alveolar line - so teeth are set in such a way above the lower residual ridges that the contacts are on this line
alveolar contour line - if teeth are set at slope then the denture may be displaced during function
rim profile - to ensure adequate lip support
mouthwash F- content and when to give
225ppmF
can give over 6/7 years; only when they have the capacity to spit
what is a toxic dose of fluoride
32-54mg/kg i.e. 5-10g of toothpaste in a 75kg individual
what is a potentially toxic dose of fluoride
5mg/kg - give milk & observe
5-15mg/kg - milk & hospital
15mg/kg+ - hospital & IV calcium gluconate
max dose of F- safely tolerated
1mg/kg
toothpaste for different ages
1000ppmF = 6m-6y unless high risk (smear for <2 & pea sized >2)
1450ppmF = >6y low risk & >3y high risk
2800ppmF = >10y high risk
225ppmF or 0.05% daily mouthwash = >6y high risk
***toothpaste now 1500ppm for everyone of all ages in scotland
what the different radiographic film holders are for
red = bitewing for coronal of posterior teeth
yellow = posterior periapical image of complete tooth including the root
blue = anterior periapical image for complete anterior tooth including root
green = endo for identifying working lengths
what size of film the radiographic holders take
BW = 2 for permanent teeth & 0 for deciduous
anterior PA & endo = 0
posterior PA & endo = 2
how to complete diet diary
3 days including 1 weekend day
write down everything eaten and time it is eaten
difference in ortho wire for springs & for retentive components
0.5mm for springs
0.7mm for retentive components
what are the dimensions of the bite plane
OJ + 3mm
INR
international normalised ratio
what should the INR be for an XLA
<4
ARAB
A - active component
R - retention
A - anchorage
B - baseplate
drug interactions of warfarin
inhibiting - alcohol, epilepsy drugs
potentiating - NSAIDs, ACE inhibitors, antibiotics
tx of ANUG
ultrasonic debridement
CHX
OHI
400mg metronidazole TID 3 days if necessary
standard drug tx of ANUG
metronidazole 400mg 3 TID for 3 days
alternative is amoxicillin 250mg 3 TID for 3-5 days
3 predisposing factors to ANUG
smoking
stress
poor OHI
endo materials - irrigants
- EDTA solution 15% - removes smear layer
- sodium hypochlorite 3% - disinfects & dissolves pulpal remnants, disrupts organic portion of smear layer
- chlorhexidine 0.2% - disinfects canal
endo materials - paper points
to ensure canal is dry before medicating or obturating
endo materials - medicaments
- ultracal/hypocal - NS calcium hydroxide; inter-visit medication to prevent infection
- ledermix - corticosteroid & antibiotic mixture; inter-visit medication for hot, infected pulps to reduce inflammation
endo materials - obturation
- GP points - cold lateral compaction or thermafill, requires AH+ sealant
- resilon - resin based, requires epiphany sealant
lignocaine interaction
2.2ml lignocaine 2% with 1:80,000 adrenaline not advised in ptx with sensitivity to adrenaline or latex, uncontrolled cardiovascular disease, taking MAOIs, tricyclics or beta blockers
citanest 3% with octapressin given as an alternative
post op painkiller - what groups to be wary of
warfarin or pregnant give no NSAIDs (ibuprofen/aspirin)
liver / kidney disease reduce dose