Which type of radiation accounts for only 0.10% of background radiation?

Dental radiation accounts for only a small fraction of overall background radiation exposure, specifically around 0.10%. This is primarily due to the limited and controlled use of dental radiographs in clinical practice. Dental X-rays are taken as needed for specific diagnostic purposes, resulting in a relatively low contribution to a person's total exposure when compared to other sources of background radiation.

Cosmic radiation, radon radiation, and natural radiation account for higher percentages of background radiation exposure. Cosmic radiation originates from outer space and contributes significantly, while radon is a naturally occurring radioactive gas that can accumulate in homes, significantly raising exposure levels. Natural radiation encompasses radiation from soil, rocks, and other environmental sources, which also contribute much more to overall background radiation than dental X-rays do.