Dr. Zahedi is presently teaching at the Department of Periodontics (Constitutive Regenerative Sciences) at the University of California, Los Angeles (UCLA) and was also a full-time Associate Professor at the Department of Advanced Periodontics and Implant surgery at Loma Linda University in California from 2002 to 2004. Since 1990, Dr. Charles Zahedi has been intensively involved with treating and helping maintain the best oral health for all patients with a focus on those that have difficulties accessing quality dental care such as older adults, orally disabled, and employees of large corporations. Dr. Zahedi obtained a Ph.D. in oral medicine with a thesis on periodontal and bone regeneration. Most of the international publications by Dr. Zahedi deal with treating older adults having advanced bone loss and needing dental implants. He has written some of the most-read scientific articles on how to make implant dentistry more affordable and predictable for all patients including older adults. Dr. Zahedi has lectured on the treatment of older adults and the use of dental implants and trained dentists in many countries including United Kingdom, Sweden, France, Italy, Portugal, Belgium, Luxembourg, Poland, Czech Republic, Lithuania, and China. In 2015, Dr. Zahedi was honored to be invited to write a chapter on the upcoming book Special Care Dentistry 2016 (Dental Clinics of North America). His chapter is entitled: Treatment of Orally Handicapped Edentulous Older Adults. In October 2013, Dr. Zahedi became the first dentist to have been invited to the Annual Meeting of California Assisted Living Association (CALA) to talk about the oral health of older adults (geriatric dentistry). He is also a member of the American Society for Geriatric DentistrySpecial Care Dentistry Association, the California Dental Association, and the American Dental Association.