Dr Teh Leok Hui graduated with Bachelor Degree in Dental Surgery from University Malaya.  After graduation, she worked with the Ministry of Health of Malaysia, and then at Penang Adventist Hospital, as dental surgeon, before she left for Glasgow, UK to receive her specialist training in orthodontics. Dr Teh obtained her Master Degree in Medical Science (in Orthodontics) from University of Glasgow, and at the same time she passed the membership examinations in orthodontics of the Royal College of Surgeons and Physicians of Glasgow (RCSPG), as well as of the Royal College of Surgeons of England (RCS of Eng). Upon returning from the UK, Dr Teh worked as a lecturer at a local university. She started her own private specialist clinic in orthodontics since December 2000.