The use of radiation in dentistry is now pervasive and routine. From long time back, manual techniques and advancements have surpassed a huge leap based on radiation influenced diagnosis, treatment protocol and follow up. So, as essential tools across all branches and specialties of medicine.The inherent properties of ionizing radiation provide many benefits, but can also cause potential harm. Its use within medical practice thus involves an informed judgment regarding the risk/benefit ratio. This judgment requires not only medical knowledge, but also an understanding of radiation itself.This update provides a global perspective on radiation science, risks for endodontists and its safety strategies.

Keywords: Radiation; Endodontist; DNA; IOPA etc.