Dr Kelvin Koh Poh Leong


BDS (Singapore), FRACDS (Australia), M Orth RCS (Edinburgh), MDS Orthodontics (Singapore), FAMS (Orthodontics)

Dr Koh is registered with the Singapore Dental Council as a Dental Specialist in Orthodontics. Dr Koh graduated from the National University of Singapore with a Bachelor of Dental Surgery in 1999. Thereafter, he served as a Dental Officer in the Singapore Armed Forces, National Dental Centre and School Dental Services.

Dr Koh was admitted as a Fellow of the Royal Australasian College of Dental Surgeons having completed both the FRACDS Australian PART I and II examinations. Dr Koh earned his Masters of Dental Surgery (Orthodontics) at the National University Singapore and was also conferred membership in the Royal College of Surgeons, United Kingdom (Edinburgh). He was trained to do Orthodontics for both adult and children at National University Hospital (NUH) and National Dental Centre (NDC).

Dr Koh is currently an adjunct lecturer at Nanyang Polytechnic (Diploma in Oral Health Therapy). Dr Koh enjoys doing Interceptive Orthodontics (functional appliances, facemask therapy and removable appliances) for children. He finds great satisfaction in doing growth modification for children with jaw problems at an early age.

Dr Koh is a fellow of the World Federation of Orthodontics and a member of the Association of Orthodontists, Singapore (AOS) and the Singapore Dental Association (SDA).


Dr William Lim

Oral and Maxillofacial Surgeon

BDS (Singapore), MDS (Oral & Maxillofacial Surgery) (Singapore), FAMS (Oral & Maxillofacial Surgery)

Dr William Lim graduated with a Basic degree in Dental Surgery in 2008 with an Outstanding Undergraduate Research Prize. He then pursued a Masters in Oral & Maxillofacial Surgery in 2010. Dr Lim served as a Consultant in the National Dental Centre Singapore where he was Head of the Oral and Craniofacial Implant Program.

He has a special interest in 3-dimensional imaging with reference to diagnosis and surgical planning of cases. His clinical practice focuses on surgeries of the face, jaw and mouth, and he performs procedures such as the removal of wisdom teeth, implant and bone grafting, ridge splitting, jaw correction surgeries and more. Dr Lim is a Fellow of the Academic Medicine Institute and is actively involved in teaching.


Darren Lee Zong Ru

Oral Health Therapist

Diploma in Dental Hygiene and Therapy (Merit)

Darren is a registered Part I Oral Health Therapist with the Singapore Dental Council. He is the first recipient of the inaugural Oral Health Therapist of the Year Award 2019 by the Association for Oral Health Therapists (Singapore), which recognises the best of the profession. He graduated from Nanyang Polytechnic in 2008. He topped his cohort and was awarded the Diploma with Merit and the Singapore Dental Association Prize for being best in clinical practice. It is his passion for excellence that enabled him to achieve the academic accolades. He is currently an adjunct lecturer at Nanyang Polytechnic and is a member of its Oral Health Therapy Advisory Panel. He is also a member of the Association for Oral Health Therapists.

Besides his love for Dentistry, Darren is an avid musician. He came in top in several National Songwriting Competitions, and has written music professionally, most recently for Hong Kong cantopop singer Jason Chan (陳柏宇). He coaches swimming too and is a registered coach with Sport SG.

Darren loves interacting with children and youths. It was his exposure and fascination in the various psychological phenomena within the dental practice that has led him to pursue further education in Psychology. He holds a Bachelor’s Degree in Psychology from Singapore Management University and is currently pursuing his Master’s in Psychology from Birkbeck, University of London.