____________________________ is the up-and-down movement of the tube
head or x-ray beam when using the bisecting periapical technique.
_______________________________ exists if the vertical angulation is larger
than necessary. The image of the teeth appears smaller than normal.
_______________ exists if the vertical angulation is less than is necessary. The
image of the teeth appears larger than normal.
_______________________ is the side-to-side movement of the tube head or
x-ray beams when using the bisecting periapical technique.
Correct horizontal angulation for successful radiographs exists when the central
ray is _________________ to the facial surfaces of the teeth and ____________
to the mesial and distal surfaces.
In the _________________________ (long-cone) technique, the film is held
parallel to the long axis of the tooth. The central ray is directed to pass at a
________________________angle to both the tooth and the film.
The paralleling (long-cone) periapical technique provides a target-film distance of
approximately _________________ inches, in contrast to 8 inches for the
List the instruments used to hold the film parallel to the teeth.