Seven keys to check for a good orthopantomogram (OPG) x-ray include: 1) both jawbone condyles should be at the same level, 2) the width of each ramus should be equal, 3) the anterior region should be clear so that upper and lower front teeth are visible without overlapping or gaps between teeth, 4) there should be good contrast between teeth and bone, and 5) the lips should be closed and there should be no visible markings on tooth surfaces.

1. SEVEN keys to check for good and accurate OPG -Dr Anshul Aggarwal
Both the condyle should
be at same level
The width of both
side of ramus of
mandible should be
equal
The anterior region should be clear.
Both upper and lower anteriors is
should be clearly visible
Tooth should not
Overlap with adjacent
teeth/
But should be in close
contact with each other
The contrast of
the bone between
teeth should be clear
The lips should be closed while shooting
opg . No radiolucency is visible on upper
and lower incisal surface of anterior teeth
The Occlusal line is
Just like a smile line
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