Conecut error results from incorrect:

a. vertical angulation.
b. horizontal angulation.
c. centering the x-ray beam.
d. aligning the anterior edge of the image receptor with the teeth of interest.

c. Incorrect point of entry, or not centering the image receptor within the x-ray beam, will result in cone-cut error, where the portion of the image receptor that was not in the path of the x-ray beam will be clear or blank on the resultant radiograph.