Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Ontario Dental Association is a voluntary professional organization representing 80 percent of dentists in Ontario, Canada It was founded in 1867 by Dr. Barnabus Day and nine colleagues. It is one of the oldest professional organisations in North America. Its mission is to provide exemplary oral health care and promotes the attainment of optimal health for the people of Ontario. Member dentists are recognized for their knowledge and expertise that makes their association a unique and effective advocate for the dental profession with the public, government, insurance carriers, dental plan sponsors and other dental organizations.