California Dental Association | 25,315 followers on LinkedIn. Bringing together the best and brightest in dentistry for over 150 years. | The California Dental Association is a not-for-profit organization representing organized dentistry in California. Founded in 1870, CDA is the largest state association in the ADA, bringing together over 27,000 of the best and brightest in dentistry. CDA supports its members at every stage in their careers through innovative programs, educational opportunities, unmatched expertise and comprehensive resources.