General Dentist

Penelope Gianniou was born and raised in Thebes, Greece. She graduated from the School of Dentistry at the National and Kapodistrian University of Athens in 2020 with a Very Good degree classification.

After graduation, she worked in the Periodontology Department of the Athens Military Dental Clinic, as well as in private periodontal practices. She also served as a clinical observer in the Departments of Periodontology and Oral Surgery at the School of Dentistry, National and Kapodistrian University of Athens.

She is committed to continuing education and regularly attends scientific conferences and courses. In May 2026, she began postgraduate training in Aesthetic Dentistry through the Merimna Institute in collaboration with University College London (UCL).

Dr. Gianniou joined the Dental Smiles team in June 2025.

She speaks Greek, English, and German.