Week 11 : TMJ
description
Transcript of Week 11 : TMJ
![Page 1: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/1.jpg)
Week 11 : TMJ
RT 233
![Page 2: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/2.jpg)
AP Axial TMJ 1. Supine or seated upright
2. Posterior teeth closed and in contact
3. For open mouth- wide as possible without chin jutted forward
4. OML perp to IR
5. CR 35 caudad, centered midway between TMJ’s.
6. Enters approx 3” above nasion
![Page 3: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/3.jpg)
AP Axial TMJ Radiograph
1. No rotation
2. Minimal superimposition of petrosa on condyle in closed mouth
3. Condyle and TMJ below pars petrosa in open mouth
![Page 4: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/4.jpg)
Axiolateral Oblique TMJ
1. Semiprone or seated
2. Center ½” anterior to EAM
3. Rest cheek on grid device
4. Rotate MSP approx 15 degrees toward IR
5. IPL perpendicular
6. CR 15 caudad exiting through TMJ closest to IR about 1 ½ “ superior to upside EAM
![Page 5: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/5.jpg)
Axiolateral Oblique TMJ Radiograph
1. TMJ
2. Condyle lying in mandibular fossa in closed mouth
3. Condyle lying inferior to articular tubercle in open mouth
![Page 6: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/6.jpg)
Axiolateral Oblique Open mouth
![Page 7: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/7.jpg)
Axiolateral Oblique Open mouth
Temporomandibular fossa
condyle Coronoid
![Page 8: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/8.jpg)
Axiolateral ObliqueClosed mouth
![Page 9: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/9.jpg)
Axiolateral ObliqueClosed mouth
Temporomandibular fossa
coronoidcondyle
![Page 10: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/10.jpg)
Axiolateral TMJ’s
• CR 25-30 degrees
• Enters ½” anterior and 2” superior to upside EAM
• IPL Perpendicular
• MSP parallel
![Page 11: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/11.jpg)
Evaluation Criteria
• TMJ lying anterior to the EAM
• Condyle in fossa (closed mouth)
• Condyle inrerfior to articular tubercle (open mouthP
11
![Page 12: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/12.jpg)
Axiolateral Closed Mouth
![Page 13: Week 11 : TMJ](https://reader036.fdocuments.us/reader036/viewer/2022062422/56813e5a550346895da8546b/html5/thumbnails/13.jpg)
Axiolateral Open Mouth