qs

Question 1

which drugs decrease warfarin action? how?

Answer 1

CPY450 enzyme inducers ; decreases INR

Carbamazepine
Rifampicin
Alcohol
Phenytoin

Question 2

which drugs increase warfarin action? how?

Answer 2

CPY450 enzyme inhibitors ; increase INR

Metronidazole
Erythromycin
Azole antifungals
Nsaids
Tetracyclines

Question 3

when should INR be checked before oral surgery?

Answer 3

for patients on warfarin

72 hours before dental surgery

Question 4

what is the surgical treatments for small medium and large OAFs?

Answer 4

• small: <2mm will close on its own
• medium: 2-4mm surgical with buccal advancement flap with mattress suture
• large: >4 palatal pedicle finger flap or buccal fat pad graft(under GA)

Question 5

what should be done if there is a delay in presentation of an OAF

Answer 5

if delayed by 6 weeks then assess for healing
* no evidence of closure = epithelial lining should be excised and advancement flap used to close the defect

Question 6

what post op advice should be given for an OAF?

Answer 6

• refrain from blowing nose
• hot salt water mouth rinses
• post op analgesic
• nasal decongestants
• broad spectrum antibiotics