Why is an oblique lateral radiograph called oblique?

An oblique lateral radiograph is referred to as "oblique" because the image receptor is held at an angle to the patient's sagittal plane. This positioning allows for a unique perspective, capturing the anatomy's three-dimensional aspects, which might not be visible in standard frontal or lateral views. By orienting the image receptor at an angle, it provides a better representation of structures, facilitating the assessment of relationships between anatomical features in the dental arch.

This technique is advantageous in identifying any potential abnormalities since it can reveal overlapping structures and spatial relationships that a straight-on view would not capture effectively. It’s particularly useful in dental imaging for evaluating both soft tissue and hard tissue, making it an essential tool for diagnostic purposes in dentistry.