Modern panoramic systems also allow the field to be limited to the area of clinical interest, thereby offering a significant potential for dose reduction.

• A. It increases the field of view to cover the entire skull
• B. Field size is fixed and cannot be adjusted
• C. Modern panoramic systems also allow the field to be limited to the area of clinical interest, thereby offering a significant potential for dose reduction
• D. Panoramic systems cannot reduce dose

Answer: (C)

In panoramic radiography, the amount of radiation the patient receives is tied to the volume of tissue exposed. Modern panoramic systems can confine the X-ray field to just the area of clinical interest, so only that region is irradiated. This targeted exposure lowers the overall dose the patient receives while still providing the diagnostic information needed for that specific area. This approach follows the ALARA principle—keeping exposure as low as reasonably achievable.

The statement is the best answer because it directly describes how modern systems reduce dose through field limitation. Increasing the field of view would raise dose, claiming the field size is fixed contradicts the adjustable nature of current machines, and saying panoramic systems cannot reduce dose is simply incorrect.