Donald S. Clem III, DDS

Dr. Don Clem grew up in Chicago and relocated to Fullerton after completion of his specialty training.

He founded the practice, limited to periodontal medicine, oral plastic surgery (regeneration of lost bone and gum tissue), and dental implants in 1984. He has lectured on the topic of regenerative periodontics and dental implants both nationally and internationally. Dr. Clem currently sits on the editorial board of three scientific journals and conducts research in the field. He has taught in three institutions and continues to lecture to students throughout the United States.

Dr. Clem believes in a team approach to care, working with the restorative dentist, hygienist and physician to manage the patient’s needs with the best periodontics can offer and a commitment to the patient’s well-being.

“As specialists, the patient depends on us to restore their oral health, function and esthetics…their dignity”


Awards and Honors

Board CertifiedAmerican Board of Periodontology 
Outstanding Contribution to the Field of PeriodontologyCalifornia Society of Periodontists 
Clinical Research AwardAmerican Academy of Periodontology 
FellowAmerican College of Dentists FellowInternational College of Dentists
FellowPierre Fuchard Academy
Service Award for Contributions to Disabled PeopleRehabilitation Institute of Southern California 
Fellow,  Humanitarian Award
Sons of Italy
FellowAcademy of Osseointegration
Fellow,Outstanding Contribution to the Field of Periodontics 2016California Society of Periodontists 
Fellow,Earl Robinson Periodontal Regeneration Award 2017, American Academy of Periodontology 

Gold Medal 2020, American Academy of Periodontology  

Professional Affiliations