According to the Jilin University Stomatology Hospital Radiology Department "oral digital surface tomography machine and general dental X-ray machine radiation dose comparison" experimental data: children and adults using general dental X-ray machine dose were (2.180 ± 0.120) mSv and (4.130 ± 0.214) mSv, using digital surface tomography dose were (0.438) ± 0.045) mSv and (1.116 ± 0.045) mSv and (1.116 ± 0.045) mSv and (1.116 ± 0.045) mSv and (1.116 ± 0.045) mSv and (1.116 ± 0.045) mSv. ± 0.045) mSv and (1.116 ± 0.075) mSv, respectively, and the irradiated dose of the general dental X-ray machine was 6.22 times (P0.001) and 3.70 times (P0.001) higher than that of the digitized curved tomography machine, respectively.
That is, the maximum radiation from the curved surface tomography panoramic machine does not exceed 5 mSv, 5 millisieverts. Radiation intensity is not high, if the building was not designed to protect against radiation in the first place, usually in the 3-5mm is enough.