Environmental change has a profound effect on the physical environment as well as all elements of natural and human systems. This includes social and economic conditions, as well as the functioning of health systems. Climate change poses an additional risk to the environment, since it leads to more frequent and severe storms, floods, high temperatures, droughts, and wildfires. This chapter examines the importance and role of environmental governance in promoting oral public health. The discussion will centre around the multiple determinants that affect dental public health, encompassing the importance of fluoridation, the consequences of air and water pollution, the accessibility of uncontaminated water, sustainable approaches in dentistry, minimising sugar intake and advocating for nutritious diets, the availability of dental care (including healthcare facilities and workforce training), and the role of education and awareness. It is essential to include sustainability education into the curriculum of both undergraduate and postgraduate students.