This panoramic radiograph shows several errors and discrepancies. The chin and occlusal plane are rotated downwards. This positioning error leads to another error in the mandibular anterior region. The apices of the mandibular anterior teeth are out of the focal trough. The roots of the mandibular incisors appear smaller than usual. Another error in this image is with the position of the tongue. The tongue must contact the hard palate throughout the exposure. The shadow of the air space obscures the peripaical areas. As the head is rotated downwards, the condyles are pointing towards midline of the image. The hard palate appears curved due to the same positioning error. Becasue of the same positioning error, the base of the middle cranial fossa is diplayed in this image.
Course information: Protocols in Panoramic Radiographic Interpretation
Date of the course : Friday, January 15, 2016
Mansur Ahmad � All rights reserved - 2016
Email: ahmad005@umn.edu Tel: (612) 625-6147 (Dr. Ahmad); 800-685-1418 or 612-625-1418 (CDE)
