California Dental Association - Dental health and consumer information for the public and industry professionals. California Association of Orthodontists - Educational programs, information and resources for CAO member orthodontists, orthodontic assistants and patients. Western Dental - 160 offices throughout California ranging from general and cosmetic dentistry to orthodontics. Society of Pediatric Dentists - Society promoting quality dental care for children. California Dental Hygienists' Association - Advocacy and education for current and aspiring hygienists.. J Productions Dental Seminars, Inc. - Rental kits and materials for those preparing to take the California Registered Dental Assisting (RDA) exam.