Atlas and Axis Study

AP Projection

1. Patient in supine position;
2. Open the mouth so that the line from the lower edge of the upper incisors to the tip of the mastoid process.

Central ray perpendicular to the middle of the mouth.

Respiration: pronation of the word ah during the exposure.

Evaluation Criteria:

• Visualization of the atlas, axis e dens in the center of the mouth;
• Upper central incisors and the base of the skull superimposed;
• Appropriate exposure values (visualization of the all bony trabeculation and soft tissue).