TMJ assessment Flashcards
Teeth coming together normally is called
occlusion
an overbite, underbite, or anterior open bite would be defined as a
malocclusion
three cardinal features of temporomandibular disorders (TMDs)
orofacial pain
restricted jaw motion
joint noise
gliding, translation, or sliding movement occurs in the _____ joint cavity
upper
rotation or hinge movement occurs in the _____ joint cavity
lower
primary ligament reinforcing the TMJ
lateral ligament
Early clicking implies a developing dysfunction. T or F
True
late clicking is more likely to mean the development of a chronic problem. t or f
true
Stage of disc dysfunction:
Disc anterior and medial
Reciprocal click present (early on opening, late on closing)
Severe consistent pain
stage 2
Stage of disc dysfunction:
Reciprocal consistent click present (later on opening, earlier on closing)
Most painful stage
stage 3
Stage of disc dysfunction: Click rare (disc no longer relocates) No pain
stage 4
“soft” or “popping” clicks may be normal sounds from soft tissue movement. t or f
true
what pulls the disc forward during opening?
superior head of lateral pterygoid
what is bruxism?
clenching or grinding of teeth, especially during sleep
early phase of mandibular depression 25-50% is dominated by
rotation in inferior joint cavity
the late phase of mandibular depression 50-100% is dominated by
anterior translation in the superior joint cavity
normal functional test for opening mouth
2 knuckles or three fingers
lateral deviation early in opening indicates
muscle spasm
lateral deviation late in opening indicates
capsulitis or hypomobile capsule
C pattern of opening indicates
hypomobility in convex side
S pattern of opening likely indicates
muscular imbalance or medial displacement of condyle that “walks” around the disc on the affected side
to determine whether there is pathology involving the seventh cranial (facial) nerve
Tap the parotid gland overlying the masseter muscle. If the facial muscles twitch, the test is considered positive.
Chvostek test
