Submitted by:- A nuradha Bds 3 rd prof Roll no 33 SUBMITTED TO:- DEPARTMENT OF ORAL PATHOLOGY Trigeminal neuralgia
CONTENTS 1.TRIGEMINAL NERVE 2.Definition Of trigeminal neuralgia 3.Etiology 4.Clinical features 5.Differential diagnosis 6.Laboratory findings 7.Treatment
Trigeminal nerve
Trigeminal nerve is fifth cranial nerve. Trigeminal nerve is responsible for sensation in the face and certain motor function such as biting, chewing. Three major branches ophthalmic nerve, maxillary nerve, mandibular nerve
Definition :- Trigeminal neuralgia is a neuropathic disorder characterized by episodes of intense pain in the face, originating from the trigeminal nerve
Compression of blood vessels, especially the superior cerebellar artery occurs Chronic irritation of trigeminal nerve at the root entry zone Increased firing of the afferent or sensory fibres Trigeminal neuralgia aetiology
Clinical features Affected :Older > young >
Females > males 3:2 >
nerve Involvement : maxillary-60% mandibular-49% ophthalmic-16% all 3 divisions-1% Right side > left side 1.7 : 1
pain Unilateral pain Early pain or pretrigeminal neuralgia :-dull,aching,burning. Pain lasts for few seconds to a minute. Aggravates and sufferer have attempted suicide.
Post herpetic neuralgia Trigeminal neuropathy Costen syndrome
Laboratory findings Elective MRI
Treatment 1.PERIPHERAL NEURECTOMY 2.MEDICINE :- a. PHENYTOIN (DILANTIN) b . CARBAMAZEPINE ( TEGRETOL ) 3.MICROSURGICAL DECOMPRESSION OF TRIGEMINAL ROOT 4.Injection of boiling water in gasserian ganglion