Dr Hayder did his dental training at St Bart's and The Royal London Hospitals, graduating with prizes for Outstanding Academic Achievement. He then continued his post graduate training in Complex Dentistry, Dental Implants and Cosmetic Dentistry under the guidance of eminent professors and world renowned institutions.

In 2005, he passed entry examinations to become a Member of the Royal College of Surgeons of England. In 2006, he gained his Fellowship of the renowned US based International Congress of Oral Implantologists.

Among his many other credentials, he is a Member of the British Academy of Cosmetic Dentists, and a Member of the UK based Faculty of General Dental Practice. He and Noja have been married for many years and have 2 young children.

Mrs Hariri qualified from Guys Hospital Dental School in London in 2002. She gained Fellowship with the International Congress of Oral Implantologists (FICOI) in 2006, giving her the training and experience in placing and restoring Dental Implants.

She is an artist and a sculptor. She is known to deliver outstanding cosmetic dental restorations. She is registered with the British Association of Cosmetic Dentistry and trained under the guidance of its past president.

She helped her husband set up Toothism in 2010. Her calm, quiet, down to earth manner makes her loved and appreciated by her patients, especially those who are normally nervous of going to the dentist.