ALARA is the guiding principle for which aspect of dental radiography?

• A. True
• B. False
• C. Not applicable
• D. Optional

Answer: (A)

ALARA, which stands for As Low As Reasonably Achievable, is the guiding principle for dental radiography because it centers on keeping radiation doses as low as possible while still obtaining the necessary diagnostic information. In practice, this means every radiographic decision—whether a radiograph is justified, how the exposure is set, and how the image is acquired and processed—should aim to minimize dose without compromising image quality. Implementing ALARA includes using proper technique factors, rectangular collimation, shielding (like a thyroid collar and lead apron as appropriate), fast sensors or film, precise positioning to avoid retakes, and maintaining equipment to prevent faults that could necessitate additional exposures. Since these safeguards apply to all stages of taking dental X-rays, ALARA governs the entire process. So, this statement is true; choices like not applicable or optional would not reflect its central role, and calling it false would be incorrect.