When the Third Molar Regions Are Not Visible on a Molar

Multiple Choice

When the third molar regions are not visible on a molar bite-wing film, the solution is to:

A) Decrease the vertical angulation of the tubehead.
B) Increase the vertical angulation of the tubehead.
C) Position the anterior edge of the film at the midline of the mandibular first premolar.
D) Position the anterior edge of the film at the midline of the mandibular second premolar.