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Dr Johanna Choo

Dr Choo Johanna

​BDS (Singapore)

MSD (Orthodontics) (USA)

Certificate in Orthodontics (USA)

Diplomate American Board of Orthodontics (USA)

Senior Consultant

National Dental Centre Singapore

Specialty: Orthodontics

Conditions Treated by this Doctor:
Braces, Dentofacial Deformities, Malocclusion, Orthodontics.

Clinical Appointments

  • Senior Consultant Department of Orthodontics National Dental Centre SingaporeNational Dental Centre Singapore
  • Senior Consultant NDCS Oral & Maxillofacial Surgery Clinic @CGH Changi General HospitalChangi General Hospital


Dr Choo graduated from National University of Singapore in 1991 with a Bachelor of Dental Surgery. She continued to pursue her post graduate studies at the University of the Pacific in the USA and obtained a Master of Science in Dentistry (Orthodontics), followed by a Certificate in Orthodontics in 1995.

In 2005, Dr Choo obtained the Diplomate of the American Board of Orthodontics and was invited to showcase her work at the Annual Meeting of the American Association of Orthodontists in San Francisco.

She is amongst a small and select group of Orthodontists in Singapore that has achieved Board Certification.

Dr Choo is currently a Senior Consultant at the National Dental Centre and is a Senior Lecturer at the NUS Orthodontics Residency Training Programme.

She is also a visiting Consultant at Changi General Hospital.

She has recently been awarded the SingHealth Duke-NUS National Day Long Service Medal and the Singapore Health Quality Service Gold Award. 


  • ​Diplomate American Board of Orthodontics, USA (2005)
  • Fellow, Academy of Medicine, Singapore (1999 )
  • Certificate in Orthodontics, USA (1995)
  • Master of Science in Dentistry, USA (1995)
  • Bachelor of Dental Surgery, National University of Singapore (1991) 

Professional Appointments and Committee Memberships

  • Adjunct Assistant Professor, Oral Health Academic Clinical Programme, 2019 - present
  • Senior Consultant, Department of Orthodontics, 2009 - present
  • Member Dental Specialist Accreditation Committee, 2007 - 2010, 2014 - 2017
  • Senior Clinical Lecturer, NUS, Singapore, 2001 - present
  • Member- Association of Orthodontists, Singapore, 1995 - present
  • Member- Singapore Dental Association, 1991 - present


  • Gold Award - Singapore Health Quality Service Award, 2022
  • National Day Long Service Medal, 2021
  • SMILE Award - NDCS, 2020
  • Silver Award - Singapore Health Quality Service Award, 2020
  • SingHealth (20 Years) Long Service Award, 2016
  • Silver Award - Singapore Health Quality Service Award, 2015
  • SingHealth (10 Years) Long Service Award, 2006

Research Interests


  • Esthetic outcome of 2 methods of impacted teeth.  Journal of Clin. Perio.
    Supplement 30  2003  (supplement 4); 89
  • Effects of inhibiting periosteal migration on growth of the guinea pig mandible.  Biological mechanisms of tooth movement and craniofacial adaptation – 1996 
  • Periosteal migration and growth of the quinea pig mandible.  AJODO August 1995 (abstract)

Research Trials