Oral med - pain of the cranial nerves

Question 1

what can pain attributed to lesion or disease of the cranial nerves be classified in to?

Answer 1

trigeminal neuralgia
painful trigeminal neuropathies

Question 2

what can pain attributed to lesion or disease of the glossopharyngeal nerve be classified in to?

Answer 2

glossopharyngeal neuralgia
painful glossopharyngeal neuropathies

Question 3

describe trigeminal neuralgia symptoms?

Answer 3

recurrent unilateral brief electric shock-like pains
abrupt in onset and termination

Question 4

explain the aetiology of trigeminal neuralgia?

Answer 4

limited to the distribution of one or more divisions of the trigeminal nerve
triggered by innocuous stimuli
can develop without apparent cause or be a result of another diagnosed disorder

Question 5

what is the diagnostic criteria of trigeminal neuralgia?

Answer 5

a. recurrent paroxysms of unilateral facial pain in the distribution of one or more divisions of the trigeminal nerve, with no radiation beyond, and fulfilling criterial B and C
b. pain has all of the following characteristics:
1. lasting from a fraction of a second to 2 mins
2. severe intensity
3. electric shock-like, shooting, stabbing or sharp in quality
c. precipitated by innocuous stimuli within the affected trigeminal distribution
d. not better accounted for by another ICHD-3 diagnosis

Question 6

what is the incidence of trigeminal neuralgia?

Answer 6

4-13 per 100000
50-60 year olds
females > males

Question 7

what can trigger trigeminal neuralgia?

Answer 7

dental tx or disease
chewing, talking, touching, cold

Question 8

what can relieve trigeminal neuralgia in 65% of pts?

Answer 8

warmth and rest

Question 9

what are the 3 types of trigeminal neuralgia and their causes?

Answer 9

classical TN - neurovascular compression
secondary TN - underlying disease
idiopathic TN - no apparent cause

Question 10

what imaging can be used to investigate TN?

Answer 10

high resolution magnetic imaging