Ama is a Professor of Orthodontics & Consultant Orthodontist at Bart's and The London School of Medicine and Dentistry, Queen Mary College, University of London. He is the Academic lead for Orthodontics and Centre Lead for Oral Bioengineering at the Institute of Dentistry, Queen Mary College. 

Ama qualified in dentistry from Sheffield University in 1989, with honours and completed the Membership in Orthodontics (Royal College Surgeons England) and Masters Degree in Orthodontics at Bart's and The London School of Medicine and Dentistry, graduating with distinction in 1996. He then completed a PhD in 2005.

Professor Johal is highly regarded within Orthodontics and dentistry, for the standard of his clinical work and published research. Both of which have been recognized and rewarded with numerous National and International prizes from a wide variety range of Societies, including: The British Orthodontic Society, European Orthodontic Society, British Dental Association, The Craniofacial Society of Great Britain, The General Dental Council and The Society for the Study of Prosthetic Dentistry.

He is a regular invited speaker, both nationally and internationally, at numerous conferences around the world and has published over 85 articles in International peer-reviewed Journals, alongside numerous Book Chapters.

Both his role as a Consultant Orthodontist and his additional training in children’s dentistry have equipped him with the skills to provide the very highest standards of patient care, in a very reassuring manner. His specialist clinical interests include providing care for patients with missing teeth [hypodontia] and the management of adult patients.

Ama has been actively involved in the training of Dentists and Orthodontists now for over twenty years. In addition, he runs a number of highly regarded post-graduate training courses on Adult Orthodontics, The multidisciplinary management of hypodontia, The Straight Wire and Functional Appliance courses and Space Planning in Orthodontics.

He is one of only a handful of UK Orthodontists to be invited and meet the high standards for entry to join the Angle Society of Europe, a very selective group of Orthodontists dedicated to providing the highest standards of clinical care and excellence.