What is the recommended KV range for digital systems during the superior-inferior tangential projection of the nasal bones?

The superior-inferior tangential projection of the nasal bones is performed to clearly visualize the nasal anatomy, which includes thin bony structures. The recommended kilovoltage (kV) range of 60-70 for digital systems is optimal because it provides the necessary balance between adequate penetration and image contrast. Within this range, the x-ray beam can effectively penetrate the nasal bones while minimizing unnecessary exposure to surrounding soft tissues.

Using a kV that is too low may result in insufficient penetration of the x-ray beam, leading to poor image quality with potential underexposure. Conversely, a kV that is too high could produce excessive scatter radiation and decreased contrast, making it difficult to differentiate between the nasal bones and the surrounding structures. The 60-70 kV range strikes a balance that enhances the clarity of the nasal bones while ensuring the overall quality of the radiograph is suitable for diagnosis.