Horizontal favourable and unfavourable fractures of mandible is best diagnosed by:
Law’s view (15º lateral oblique): Sagittal plane of the skull is parallel to the film and X-ray beam is projected 15 degrees cephalocaudal.
Schuller’s or Rugnstrom view (30º lateral oblique): Similar to Law’s view, but cephalocaudal beam makes an angle of 30 degrees instead of 15 degrees.
Lateral oblique 30 degrees
Lateral oblique 15 degrees
Waters view
PA view
Lateral oblique 30 degrees