Porion

Correlation

between temporomandibular joints and craniocervical posture in patients with bilateral anterial disc displacement. Landmarks used in this study: 1.N (naison); 2. S (sella); 3. Or (orbitale); 4. P (porion); 5. Ba (basion); 6. ANS (anterior nasal spine); 7. PNS (posterior nasal spine); 8. Ar (articulare); 9. C0 (the lowest point of the occipital squama); 10. C1 (the posterior arch of the Atlas); 11. C2 (the spinous process of the second cervical vertebra); 12. cv2sp (tangent point of the superoposterior extremity of the second cervical vertebra); 13. cv2ip (the most posteroinferior point on the second cervical vertebra); 14. cv2ia (the most anteroinferior point on the second cervical vertebra); 15. cv2ap (the apex of the second cervical vertebra); 16. cv2bp (middle point of lower edge of the second cervical vertebra); 17. cv3ia (the most anteroinferior point on the third cervical vertebra)