The recommended vertical angulation for exposing a mandibular molar periapical radiograph using the bisecting technique is

A) -10 degrees.
B) ?15 degrees.
C) ?20 degrees.
D) ?5 degrees.

D
Explanation: A) To obtain a radiograph with an accurate representation of the mandibular molar, the central ray of the x-ray beam should be directed toward the imaginary bisector between the long axis of the canine and the plane of the image receptor in the vertical dimension at -5 degrees.
B) To obtain a radiograph with an accurate representation of the mandibular molar, the central ray of the x-ray beam should be directed toward the imaginary bisector between the long axis of the canine and the plane of the image receptor in the vertical dimension at -5 degrees.
C) To obtain a radiograph with an accurate representation of the mandibular molar, the central ray of the x-ray beam should be directed toward the imaginary bisector between the long axis of the canine and the plane of the image receptor in the vertical dimension at -5 degrees.
D) To obtain a radiograph with an accurate representation of the mandibular molar, the central ray of the x-ray beam should be directed toward the imaginary bisector between the long axis of the canine and the plane of the image receptor in the vertical dimension at -5 degrees.