TMJ
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each of the black spaces below before clicking
on it to display the answer.
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| these bony processes are all part of what TMJ bone... Postglenoid spineMandibular fossaArticular eminenceArticular crestArticular tubercle | temporal bone
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| these bony processes are all part of what TMJ bone... Medial poleLateral poleHead, neck, body, teethRamusCoronoid process | mandible
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| Positioned between mandibular condyle and temporal bone – Divides into superior and inferior compartments | articular disk
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| What are the three bands of the articular disk called? | Anterior (pes mensicus)Intermediate (pars gracilus)Posterior (pars posterior)
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| What type of tissue is the articular disk made up of? | Dense fibrous connective tissue
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| What are the medial and lateral attachments of the articular disk? | Attached to medial and lateral poles by medial and lateral collateral ligaments
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| What are the posterior superior parts of the articular disk attached to? | superiopr lamina or stratum
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| What are the posterior inferior disc attaches to? | inferior lamina or stratum
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| What does the anterior portion of the disc attach to? | Anterior attachment to capsule and superior fibers of the superior lateral pterygoid
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| What does the superior part of the joint capsule of the TMJ attach to? | rim of temporal articular surfaces
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| What does the inferior part of the joint capsule of the TMJ attach to? | condylar neck
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| Which part of the capsule becomes TMJ ligament? | lateral part
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| The anterior part of the TMJ capsule blends with the anterior disk and what muscle? | lower head of external pterygoid
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| What does the posterior capsule attach near? | attaches near postglenoid spine
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| What is the TMJ innervated by? | Auriculotemporal branch of 3rd division of trigeminal nerveMasseteric nervePosterior deep temporal nerve
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| What happens during phase 1 of mandibular depression? | Rotation for first 10-15 mm before mandibular opening enters next phase
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| What happens during phase 2 of mandibular depression? | Anterior translation of the condyle. Allow for functional opening of 40 mm
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| What happens during protrusion? | Bilateral anterior condylar translation
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| What happens during lateral excursion? | Anterior translation on contralateral side and spin on ipsilateral side
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| At the end of phase 1, what position is the disk in? | the disc is more posteriorly rotated position in relation to condyle
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| What are the two theories in regard to the arthrokinematics of phase 2? | Superior stratum becomes tight as the condyle and disc translate anterior ORDisc is affected by its own self-seating, disc is rotated further posteriorly on condyle
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| Phase 1 for treatment of TMJ disorders | Inflammatory conditions, Part A/B
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| Phase 2 for treatment of TMJ disorders | Cervical spine disorders causing inflammatory process.
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| Phase 3 for treatment of TMJ disorders | Intraoral appliance to treat inflammation.
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| Phase 4 for treatment of TMJ disorders | Anterior repositioning appliance.
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| Phase 5 for treatment of TMJ disorders | Manual intraoral techniques to restore mandibular dynamics.
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| Phase 6 for treatment of TMJ disorders | Arthroscopy to restore translation between disc and temporal bone.
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| Phase 7 for treatment of TMJ disorders | Open joint surgery.
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