<prompt> Horizontal favourable and unfavourable fractures of mandible is best diagnosed by:Lateral oblique 30 degreesLateral oblique 15 degreesWaters viewPA view  <response>: Laws view 15o lateral oblique: Sagittal plane of the skull is parallel to the film and X-ray beam is projected 15 degrees cephalocaudal.Schullers or Rugnstrom view 30o lateral oblique: Similar to Laws view, but cephalocaudal beam makes an angle of 30 degrees instead of 15 degrees. 