Dr Cheung received his Doctor of Dental Medicine degree from the University of Pennsylvania School of Dental Medicine, USA. He maintains a multi-specialty practice in the Central business district of Hong Kong.

He is Fellow of the Academy of General Dentistry, the Academy of Dentistry International, the International College of Dentists, the American College of Dentists, the International Academy for Dental Facial Esthetics, and the Pierre Fauchard Academy.

He is Honorary Professor, West China School of Stomatology, Sichuan University in China, Honorary Associate Professor at the University of Hong Kong Faculty of Dentistry, and Adjunct Associate Professor, University of Pennsylvania School of Dental Medicine, USA.

Dr Cheung has delivered well over 100 lectures worldwide and has published in various dental journals and magazines. He serves on the International Editorial Board of the Journal of the American Dental Association (JADA). He is Vice Chair of the Education Committee of the FDI World Dental Federation and Speaker, International College of Dentists International Council.