What statement reflects the ALARA principle in dental radiography?

• A. Always expose as many films as possible
• B. As Low As Reasonably Achievable and only the necessary films
• C. Use the highest exposure to ensure image quality
• D. X-rays should be performed As Low As Reasonably Achievable (ALARA) while ensuring diagnostic quality

Answer: (D)

ALARA means reducing radiation exposure to the lowest level that still allows accurate diagnosis. In dental radiography this means taking X‑rays only when justified, using the lowest exposure settings and receptor that yield a diagnostically acceptable image, and avoiding unnecessary repeats. The statement that X‑rays should be performed As Low As Reasonably Achievable while ensuring diagnostic quality captures both reducing dose and maintaining image adequacy, which is exactly what ALARA aims for. The other options either push exposure up (more films or highest exposure) or focus only on the number of films without tying it to keeping diagnostic quality.