What characterizes an oblique lateral radiograph?

An oblique lateral radiograph is characterized by the positioning of the image receptor, which is not parallel to the sagittal plane. This specific orientation allows for capturing images at an oblique angle, providing a unique view of the anatomical structures being examined.

In dental radiography, this technique is particularly useful for obtaining comprehensive images of patients' anatomy that may not be visible from standard angles. By positioning the receptor obliquely, clinicians can enhance the visibility of certain structures, crucial for accurate assessment and diagnosis.

This approach diverges from the other choices, as the image receptor being flat against the imaging plate or in direct contact with the patient does not specifically define an oblique lateral view. Similarly, when the receptor is parallel to the sagittal plane, it typically aligns with more conventional views. Thus, the oblique positioning is what distinctly characterizes an oblique lateral radiograph.