TMD - Uncommon Disorders Flashcards
Examples of uncommon disorders cause issue TMJ?
Trauma/ dislocation
Osteoarthritis
Infective arthritis
Trismus
What is osteoarthritis?
Degenerative arthritis - degenerative joint disorder
How does osteoarthiritis present?
Painful inflammatory erosive phase last 3 years following period of resolution
Clinical features of osteoarthritis?
Pain centred on joint Tender joint Crepitus Limited ROM Radiological signs
Tx of osteoarthritis?
Splints
NSAIDs
Athrocentesis
What is infective arthirtis?
Rare disorder cause by bacteria
What can infective arthritis cause which needs to be tx immediately?
Infection middle cranial fossa
Clinical features infective arthriris?
Pyrexia Restricted opening Suppuration Erythema Swelling
Tx of infective arthriits?
AB and drainage
What expect in normal opening?
> 40mm
What is trismus?
Limited opening - less 15mm
What are causes of trismus?
Extracapsular
Intracapsular
Pseudo-ankylosis
Ankylosis
What are extracapsular causes of trismus?
Trauma = fibrosis
Infection
Tumour
Inflammation
What are intracapsular causes of trismus?
Infection
Systemic arthritis
Tumours
Synovial chondromatosis
What causes pesudo-ankylosis?
Mechanical interference of opening
e.g Zygomatic fracture
What is anklyosis?
Bony union
Checklist of trismus?
Opening less 15mm
Progressive worsening
Absence hx of clicking
Pain non-myofascial origin
What see if dislocation in TMJ?
Large open bite and inability to get teeth occlude
What see radiograph of disclocation?
Condyle head forward of eminence
How tx recurrent dislocation?
Physiotherapy - strengthen muscle prevent dislocation
Botox
Surgical
Examples of inflamamtory arthritis?
Rheuamatoid Psoriatic SLE Ankylosising spondylitis Gout
