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the anterior piece of bone in FRONT of the articular fossa
space in the temporal bone where the condyle sits
a process off the mandible that ARTICULATES with the temporal bone
completely enclosed in the TMJ
what are the two layers of the joint capsule?
which layer of the joint capsule gives it support?
which layer of the joint capsule is the inner layer of connective tissue?
which layer has nerves and blood vessels that supply the joint in the joint capsule?
the synovial membrane secretes _________ _________ that helps lubricate the joint
fibrous connective tissue that sits BETWEEN the condyle and the articular fossa
disc of the joint
what completely divides the joint into two sections and what are the cavities called?
disc of the joint
what can cause the disc to get thin and make jaw movement uncomfortable?
T/F from aging, if the disc gets thin and jaw movement is uncomfortable it is called TMD
FALSE! it is more like arthritis, not necessarily TMD
movement of the joint requires both _________ and _________ to fully open the mouth
opening and closing
what is the purpose of the gliding and rotation?
so the teeth don't hit each other when opening
what are the two disorders of the joint?
what is it called when the head of the condyle moved too far ANTERIORLY and got stuck PAST the articular eminence?
what is the treatment for subluxation?
relax the muscles and carefully move the mandible DOWN and BACK
with subluxation, it usually takes _________ or _________ to treat
T/F it is a good idea to give the jaw a break when scaling lower anteriors to prevent subluxation
what are the four symptoms we learned about TMD?
chronic joint tenderness
painful muscle spasms
limited or deviated opening
who is the least successful specialist in dentistry?
what are four types of treatment listed for TMD?
nightguard- VERY effective!
ortho to correct occlusal problems
what is the better choice of treatment to try before referring someone to a specialist for TMD?
ch 19 TMJ