For an adult horizontal or vertical molar bitewing, align the film packet so that the anterior edge lines up:

Question

Quizplus · Accepted Answer

When taking a molar bitewing, the anterior edge of the film packet should be placed behind the distal half of the second premolar. This allows for proper visualization of the posterior teeth, including the distal surfaces of the first and second molars. Placing it behind the distal half of the first premolar (A) or in front of the mesial half of the first (C) or second (D) premolars would not provide adequate coverage of the posterior teeth.

For an Adult Horizontal or Vertical Molar Bitewing, Align the Film