INBDE (Integrated National Board Dental Examination) 2025 – 400 Free Practice Questions to Pass the Exam

Manmade radiation refers to any type of radiation that is produced by human activities. According to current data, it is estimated that the average person is exposed to 3.1mSv of manmade radiation each year from sources such as dental and medical imaging. This amount is relatively low compared to other sources of radiation. For example, the average person is exposed to around 2.3mSv per year from natural sources, such as the sun and the Earth's crust. Therefore, options B (6.2mSv) and C (10mSv) are incorrect as they would be higher than the total amount of radiation a person would be exposed to from all sources. Option D (2mSv) is also incorrect as it is lower than the average amount of manmade radiation exposure per year.