Knowledge and Practice of Diagnostic Reference Levels, Radiation Protection, and Safety among Dental Professionals and Dental Undergraduate Students in the United Arab Emirates: A Multicentric Study

Background: Dental radiographic examinations deliver low doses of radiation with low biological risks; however, low doses can lead to a cumulative risk. Diagnostic reference levels (DRLs) indicate typical practice in a country or region. Surveys to establish DRLs can help acquire dose information, and less attention to DRLs can have consequences for the patient and dental workers. This study aims to determine the knowledge and practice of DRLs, radiation protection, and safety among dental professionals and dental undergraduate students in the United Arab Emirates. Methods: A cross-sectional survey was distributed among dental students, general dental practitioners, dental faculty, and radiographers from dental universities in the United Arab Emirates. This study assessed the knowledge and practice of radiation safety of 221 participants. Results: Among the surveyed respondents, 58 (26.2%) had a good level of knowledge, 94 (42.50%) had an average level, and 69 (31.2%) had a poor level. 30.3% of the respondents were aware of the DRLs in dental radiography. Only 10 survivors were able to accurately mention the national DRL for intraoral adult radiography. The level of knowledge is significantly associated with age (P < 0.0001), year of experience (P < 0.0001), and professional development courses (P = 0.024). Almost half had an average level of practice, 30.8% a good level and 22.6% a low level. The level of practice is influenced by age (P = 0.001), qualification (P = 0.034), and experience (P = 0.022). Conclusions: Knowledge of DRLs, radiation protection, and safety is adequate among the sample surveyed. However, translation of this knowledge into practice is lacking, which warrants the need for further training and enhancement of dental health-care workers.