Complications in OS

Question 1

another name for dry socket - what is it? what teeth most common?

Answer 1

alveolar osteitis
inflammation of bone (rather than infection)
mandibular molars (8s)

Question 2

what causes dry socket?

Answer 2

absence of blood clot or if initially formed blood clot lysed

Question 3

what 3 drugs risk dry socket?

Answer 3

OCP, antipsychotics, antidepressants

Question 4

list signs of DS - how long after XLA do symptoms arise?

Answer 4

2-3 days post XLA
dull aching throb, bad taste, discharge, halitosis, pain not improving w/ analgesia

Question 5

DS tx

Answer 5

LA, irrigate w/ saline, remove debris, avogyl sedative dressing

Question 6

what can mimic DS?

Answer 6

sequestrum

Question 7

where in mandible is bone very thin?

Answer 7

lingual posterior mandible

Question 8

give 3 groups of drugs that cause MRONJ

Answer 8

bisphosphonates (-dronate)
RANKL inhibs - denosumab
Anti-angiogenics (bevacizumab, sunitinib, alfibercep)

Question 9

what is ORN and what causes it? what are these pts prone to?

Answer 9

osteoradionecrosis of the jaw
pts who have had H&N cancer radiotherapy
avascular bone prone to MRONJ

Question 10

give signs of ORN

Answer 10

bone not healing
severe pain
recurring infections
halitosis
orofacial fistula
suppuration
pathological fracture looking deficit in jaw

Question 11

what is considered normal mouth opening & trismus? (mm) mild, moderate and severe trismus?

Answer 11

norm = 30-40mm

Trismus = <30mm
mild trismus = 20-30mm
Moderate = 10-20mm
Severe = <10mm