Jaw trauma

Question 1

DISLOCATED JAW, how would the patient present, how is it caused?

Answer 1

Very painful
Patients unable to close their mouth
Jaw may be twisted to one side
Typically caused by opening the mouth excessively wide
Though contact sports injury is another cause
More likely to occur in patient who have had previous jaw dislocations
Long term TMJ disorders may develop

Considered an urgent dental problem

Question 2

Appearance of dislocated jaw on x-ray?

Answer 2

The mandibular condyle is away from the articular eminence and the patient will be unable to close their mouth

Question 3

TMJ fracture, what causes it? overview

Answer 3

Second most common fracture to the jaw
Common causes:
Direct trauma (fall, assault)
RTC
Sports injuries
Muscles may be damaged as well
An open fracture can occur if the tissues within the mouth are torn

TMJ fractures dont occur in isolation, if you spot one, keep searching

Question 4

TMJ meaning?

Answer 4

Temporomandibular joint

Question 5

TMJ clinical presentation?

Answer 5

Pain
Swelling and bruising
Bleeding
Discomfort
Jaw stiffness
Numbness
Dental related problems
Breathing difficulties

Unable to close mouth

Question 6

Mandible body fractures causes

Answer 6

Causes of fractures:
Assault: 50%
RTC: 10%
Falls: 15%
Sports injuries: 15%
Other: 10%

Question 7

Mandible body fractures clinical presentation?

Answer 7

Pain
Swelling and bruising
Chin paraesthesia - numb chin
Malocclusion
Trismus - lockjaw
Dental damage
Laceration of the skin of the EAM

Question 8

Guardsman fracture, caused by? overview

Answer 8

Parade ground fracture
Caused by fall on to the midpoint of the chin
Common in patients with epilepsy
Also, elderly patients and soldiers who fall forward due to syncope
Fracture through the symphysis with fractures of both condyles