What causes elongation in dental radiographs?

Elongation in dental radiographs is primarily caused by improper vertical angulation. When the X-ray beam is directed at an incorrect vertical angle, it may not properly intersect the object being radiographed and the film, leading to a distorted image that appears longer than the actual dimensions of the anatomical structures being examined.

In the case of vertical angulation, if the beam is angled too flatly (not steep enough), this causes the teeth to appear elongated on the radiograph. The ideal angle allows for the most accurate representation of tooth height and alignment, and any deviation can result in the elongation effect.

Understanding the principles of vertical angulation is crucial in dental radiology for achieving clear and accurate imaging, which aids in diagnosis and treatment planning.