Effective doses are

Effective doses are

• A. Intraoral dental x-ray imaging (1-8 uSv), Panoramic (4-30 uSv), Cephalometric (2-3 uSv) and CBCT (dento-alveolar 34-652 uSv or craniofacial 30-1079 uSv)
• B. CBCT doses can’t be calculated
• C. Panoramic yields higher dose than CBCT
• D. Intraoral imaging uses more than 1000 uSv

Answer: (A)

The idea being tested is how the effective dose varies across dental imaging modalities and how those doses are expressed in microSv. Effective dose accounts for the type of tissue irradiated and its sensitivity, giving a risk-weighted sense of the overall radiation burden from a given exam. In dentistry, typical effective dose ranges are roughly: intraoral imaging about 1–8 μSv, panoramic about 4–30 μSv, cephalometric about 2–3 μSv, and CBCT varies a lot depending on the field of view. For CBCT, dentoalveolar or small-FOV scans tend to fall in the tens to low hundreds of μSv (roughly 34–652 μSv), while craniofacial or larger-FOV scans can reach up to about 1,000 μSv (30–1079 μSv). These ranges reflect how much tissue is included and how the scanner settings affect dose. So the listed ranges accurately reflect the expected effective dose across these modalities, making that option the best choice. The other statements aren’t correct because CBCT doses can be estimated and compared, panoramic doses are typically lower than CBCT, and intraoral imaging is far below 1000 μSv.

The idea being tested is how the effective dose varies across dental imaging modalities and how those doses are expressed in microSv. Effective dose accounts for the type of tissue irradiated and its sensitivity, giving a risk-weighted sense of the overall radiation burden from a given exam. In dentistry, typical effective dose ranges are roughly: intraoral imaging about 1–8 μSv, panoramic about 4–30 μSv, cephalometric about 2–3 μSv, and CBCT varies a lot depending on the field of view. For CBCT, dentoalveolar or small-FOV scans tend to fall in the tens to low hundreds of μSv (roughly 34–652 μSv), while craniofacial or larger-FOV scans can reach up to about 1,000 μSv (30–1079 μSv). These ranges reflect how much tissue is included and how the scanner settings affect dose.

So the listed ranges accurately reflect the expected effective dose across these modalities, making that option the best choice. The other statements aren’t correct because CBCT doses can be estimated and compared, panoramic doses are typically lower than CBCT, and intraoral imaging is far below 1000 μSv.