Which basic rule of paralleling indicates that the central ray should be directed through the contact area of the teeth?
A)Receptor placement
B)Vertical angulation
C)Horizontal angulation
D)Receptor position

Question

Quizplus · Accepted Answer

Receptor placement,the first basic rule of paralleling,indicates the receptor must be positioned to cover the prescribed area of teeth to be examined.Horizontal angulation,the fourth basic rule of paralleling states that the central ray of the x-ray beam must be directed through the contact areas between teeth.Vertical angulation,the third basic rule of paralleling states that the central ray of the x-ray beam must be directed perpendicular (at a right angle)to the receptor and the long axis of the tooth.Receptor position,the second basic rule of paralleling,indicates the receptor must be positioned parallel to the long axis of the tooth.

Which Basic Rule of Paralleling Indicates That the Central Ray