Objective: To know about the current state of knowledge in diagnostic radiation safety which is uppermost in mind of all the dental clinicians. Methods: A total of 301 references were reviewed using standard search engines Pubmed and Google. Twenty-two, were selected as relevant by all the authors, for our area of inquiry. The temporal status of these studies were from 2008 to 2017. Two categories of research was identified, those with anthropometric phantoms and those with real patients. Results: Initially we divided them into Phantom based studies (17) 77.27% and the patient-based studies were (5) 22.73%. There is paucity of actual patient studies due to noncooperation by patients for radiation-based study and also because of severe restriction by ethical committee to give permission for such study. Conclusion: The extensive Phantom based studies and specific patient studies of radiation measurement in diagnostic dental domain has suggested to a large extent that this is a safe mode of tool of treatment selection. The risks are very minimal and unnecessary radiography must be avoided and each radiographic session must be customized.