ABSTRACT Background: Exposure to chemical substances is one of the occupational hazards among dentists. Therefore, this study aimed to investigate the changes in chemical exposure and control measures in general dental offices in Isfahan city, Iran, from 2001 to 2023. Materials and Methods: This study was performed with a repeated cross-sectional design. 184 offices were surveyed in 2001 and 250 offices in 2003. Data were collected by a researcher-made checklist. This tool has four parts, including questions related to demographic characteristics, questions related to the time period of exposure, questions related to exposure type and its consequences, and questions related to control measures. Results: The results showed that although the use of some chemicals has increased or remained unchanged, the use of most chemicals, such as resin-based dental restorative materials, acid etch materials, latex, dental plaster, common disinfectants, and hand hygiene products, has decreased in 2023 compared to 2001 ( P < 0.028). Moreover, the results indicated that professional control measures, including education, personal protective equipment, engineering control, and several measures, have significantly improved in 2023 compared to those in 2001 ( P < 0.001). Conclusion: These findings highlight the importance of improving workplace conditions, implementing control measures, and applying less hazardous materials in dental offices.
Radanipoor et al. (Sun,) studied this question.