Welcome to the Mt. Diablo Hygiene Society. We proudly serve Contra Costa County by way of an annual sealant day; children’s education; care of the elderly and clothing/food drives for the underprivileged. We offer several continuing education courses throughout the year, each of which examines current hot topics. Our meetings bring like-minded professionals together to share in camaraderie, networking and leadership opportunities. We are committed to advancing the art and science of dental hygiene through our professionalism, education, service to the community and the promotion of quality oral health.