TMD Flashcards
what part of the articular disk is avascular and aneural?
intermediate
what is the role of the temporomandibular ligament?
limit rotation and posterior displacement
what is the role of the collateral ligaments?
limit lateral movement of the disk
which way will the jaw go with unilateral contraction of the the medial pterygoids?
contralateral deviation
which was will the jaw go with unilateral excursion of the lateral pterygoids?
contralateral excursion
what is the movement that results from B medial pterygoid contraction?
elevation and protrusion of the mandible
what is the movement that results from B lateral pterygoid contraction?
protrusion
what are the actions of the supra hyoid muscles?
depression and retrusion
what is normal ROM in mm for depression in men and women?
men - 40 to 45mm, women 45-50mm
what happens arthokinematically during the first 25-50% of jaw opening?
posterior rotation of the condyle
what happens arthrokinematically during the last 50% of jaw opening?
anterior translation of the disk
what is more common anterior and posterior disk displacement?
anterior
will the mouth get stuck open or closed with a posterior displacement
open
what does a “C” curve indicate while opening?
capsular pattern
what does a “S” curve indicate while opening?
motor control
when someone has a deflection (mouth deviates one way and does not return to middle at end range) what is usually happening? What side is the derangement on?
anteriorly displaced disk, deflection will occur to the side of the displaced disk
what is classified as hyper mobile in mm for opening measurement?
55mm
what is the cotton roll test and what doe the results indicate?
bite down on ball of cotton with back molars. If it hurts ipsilateral it is muscular. If pain decreases it is joint on the biting side
what would you suspect if someone could not close the jaw?
posterior disk displacement
what is truisms? What clinical signs will you see?
an acute closed lock of the jaw after a dental procedure tenderness of the masseter
what are the clinical signs of myofascial pain disorder syndrome?
jaw pain, face pain, headaches, joint noises, limited opening, tinnitus, earache, dizziness, swallowing difficulties
what affects myofascial pain disorder syndrome
stress levels
what is the most common cause of TMD?
myofascial pain disorder syndrome
when is TMD mania indicated?
acute closed lock or acute dislocation
when would you use spray and stretch?
with myofascial pain disorder syndrome or on active trigger points.
what does the tongue controlled mouth opening exercise help with?
hypo, hypermobile, inflammation, and incoordination
what exercise can be useful for jaw hypo mobility?
horizontal tongue depressor exercise
can treatment to the TMJ/cervical spine treat ear symptoms?
yes
