Straps or weights used to fasten iontophoresis electrodes should not contain

Failing to record the incisal or occlusal edges of the teeth on a periapical radiograph most likely results from an error made in which of the following steps?

A) Placement of the image receptor B) Horizontal angulation C) Vertical angulation D) Centering the x-ray beam

An increase in intensity and clarity of vocal resonance because of enhanced transmission of sound is referred to as which of the following?

a. Bronchophony b. Vesicularity c. Pectoriloquy d. Egophony