OAC/ OAF

Question 1

When expect musocal coverage over XLA socket?

Answer 1

3 weeks

Question 2

What is OAF?

Answer 2

Epithelialised communication between oral cavity and maxillary sinus

Question 3

How can OAF be caused?

Answer 3

Dentoalveolar/ PA infection
Trauma
Maxillary sinus pathology
Bone pathology
Complication surgical procedures

Question 4

What questions to ask when assessing OAF/ OAC?

Answer 4

Nasal regurgitation of liquid
Purulent oral or nasal discharge
Altered voice
Pain maxillary region
Smoking
MH
Medications

Question 5

How to assess OAF?

Answer 5

Inspect
Valsalva test
Plain radiograph
CBCT - gold standard to assess defect

Question 6

What is valsalva test?

Answer 6

Ask pt to pinch nostril and gently blow through nose with mouth open
OAF - will hear whistling sound

Question 7

How long for OAC to become OAF?

Answer 7

approx 3 weeks

Question 8

How to manage OAF?

Answer 8

2-3mm in abscess of infection - conservative management
Irrigate socket until exudate runs clear and primary closure w/ suture
Formal surgical closer >3 mm

Question 9

What prescribe if OAF?

Answer 9

Co-amoxiclav and nasal decongestant

Question 10

What is most commonly surgical procedure to close OAF?

Answer 10

Buccal advancement flap

Question 11

What are factors that may lead to development OAF?

Answer 11

Maxillary molars w/ long roots
Pneumatisation of sinus
PAP