Best imaging for validation of ADD w/o reduction? - ️️MRI for soft tissue
Common findings with anterior disc displacement w/o reduction - ️️Open due to rotation with ipsilateral deflection
Limited protrusion with deflection inpsilateral
Limited laterotrusion C/L
Degree of mouth opening...
TMD 50 Quiz Questions And Answers Best imaging for validation of ADD w/o reduction? - ✔ ✔ MRI for soft tissue Common findings with anterior disc displacement w/o reduction - ✔ ✔ Open due to rotation with ipsilateral deflection Limited protrusion with deflection inpsilateral Limited latero trusion C/L Degree of mouth opening for hypermobility? - ✔ ✔ >55mm Usually deflection C/L to hyper mobile side Diet changes for TMD? - ✔ ✔ Soft diet Cut up food to small bites Avoid excess chewing - no gum Don't bite with front teetch - control protrusion Etiology of intracapsular disorder? - ✔ ✔ Derangement of TMJ from microtrauma and elongation of lat collateral lig and retrodiscal attachments Articular disc unable to maintain rotator integrity and is pulled ant/medial by the superior part of the later al pterygoid Five cardinal signs of TMD - ✔ ✔ Limited or restricted jaw opening or excursions movements Pain with jaw movement TM joint sounds - clicking TM joint tenderness with palpation Jaw muslce tenderness with palpation How common is mandible fx? - ✔ ✔ 2nd most common in the face How does FHP affect TMJ? - ✔ ✔ Increased muscle activity oof temporalis and masseter How does the TMJ differ from other diarthrodial joints? - ✔ ✔ Most active joint in the body Unusual combo of hinge and glide -lower joint is hinge joint - rotation -upper joint for glide - translation 2 symmetrical joints but can work independently but direct influence of the other Thick fibrocartilage Avascular ant aneural Distorts well under compressive force, good remodel potential Less likely to break down over time Lateral pterygoid superior belly O- I- Action - Innervation - ✔ ✔ O- sphenoid bone I- articular disc Action - active durin opening and closing Innervation - mandibular branch of the trigeminal C5 lateral ptyergoid inf erior belly O-
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