Dr. Onea received his Doctor of Dental Surgery degree from the University of Pacific San Francisco (UOP) and completed a three year post-doctoral periodontal program at the University of Oklahoma Health Sciences Center, where he received a Master of Sciences degree in Periodontics. His educational background also includes pre-doctoral studies completed at California State University, Hayward, where he received a Bachelor of Science degree in General Biology, and prior to that a Biology teaching degree from Romania.

He is a member of the American Academy of Periodontology, American Board of Periodontology, California Periodontal Society, American Dental Association, California Dental Association and Sacramento Dental Society.

Dr. Onea’s knowledge and experience in the field of Periodontics were tested and endorsed by the American Board of Periodontology of which he is a diplomate, a significant accomplishment for a periodontist. He is a provider of Continuing Education courses for dentists, and serves as a Dental Board of California examiner for Conscious Sedation licensees.