Skip Ribbon Commands
Skip to main content
Adj Assoc Prof Chng Chai Kiat

Adj Assoc Prof Chng Chai Kiat

BDS (Spore), MDS (Spore), Fellowship in Cleft & Craniofacial Orthodontics (Taiwan), M Orth RCSEd (Edinburgh), FAMS (Orthodontics)

Senior Consultant

KK Women's and Children's Hospital

Specialty: Orthodontics, Dentistry

Sub-specialties: Cleft and Craniofacial Dentistry

Conditions Treated by this Doctor:
Alveolar Bone Graft (ABG) for Children born with Cleft Lip and Palate, Braces, Children's Dentistry (Paediatric Dentistry), Cleft Lip and Palate in Children, Jaw Joint (Temporomandibular Joint) Surgery, Jaw Surgery, Lip and Palate, Malocclusion, Obstructive Jaundice, Obstructive Sleep Apnea - The Dental & Maxillofacial Management, Orthodontics.

Clinical Appointments

  • Head, Cleft & Craniofacial Dentistry Unit KK Women's and Children's HospitalKK Women's and Children's Hospital
  • Senior Consultant Dental Service KK Women's and Children's HospitalKK Women's and Children's Hospital
  • Senior Consultant Cleft & Craniofacial Centre KK Women's and Children's HospitalKK Women's and Children's Hospital
  • Department of Dentistry, Ng Teng Fong General Hospital

Academic Appointments

  • Adjunct Associate Professor SingHealth Duke-NUS Oral Health Academic Clinical Programme


Dr Chng Chai Kiat is the Head & Senior Consultant (Orthodontics), Cleft & Craniofacial Dentistry Unit. He treats a wide array of orthodontic cases including provision of orthodontic care and is known for his ‘Surgery First’ Ortho-orthognathic management and the treatment of cleft and cranio-facial patients.

He obtained his Bachelor’s Degree in Dentistry in 2000 and his Master’s Degree in Orthodontics in 2007 from National University of Singapore. During this time he obtained his membership in Orthodontics conferred by the Royal College of Surgeons, Edinburgh (M Orth RCSEd). He then went on to pursue his Fellowship in Clinical Orthodontics in 2008 from Chang Gung Memorial Hospital (Taiwan).

Dr Chng has a keen interest in clinical research and has been an investigator for various research topics in the field of orthodontics. His interests lie in topics such as:

  • Biomaterials
  • Biology of tooth movement,
  • 3-D imaging
  • Orthognathic surgery and Accelerated tooth movement
  • Aetiology, genetics and the prevention of cleft deformity in patients. He has been awarded with research grants for two of his research projects.

Apart from his involvement in clinical research, he has also been invited as a keynote speaker for various national and international orthodontic conferences.

He holds a diverse portfolio of academic and professional appointments:-

  • Chief Dental Officer, MOH
  • Clinical Senior Lecturer at Faculty of Dentistry, NUS
  • Co-Chairman, Aesthetic Procedures Section Medical Procedures Accreditation Committee, KKH
  • Co-secretariat, Dental Regulatory Standards Working Committee Secretariat, Ministry of Health
  • Member, Dental Postgraduate Training Oversight Committee, Ministry of Health, Singapore
  • Member, Dental Specialty Practice Working Committee, Ministry of Health, Singapore
  • Member, Dental Specialists Accreditation Board, Ministry of Health, Singapore

He was awarded the Singapore Health Quality Service Award – Silver in the year 2012.

Dr Chng is actively involved in volunteer work at Smile Asia ( where he manages and integrates dental care for Cleft lip and Cleft Palate patients into the interdisciplinary teams. He is also a Member for the Smile Asia Alliance Medical Council.


  • Specialist Accreditation in Orthodontics, 2009
  • Craniofacial Orthodontics Clinical Fellow, Chang Gung Memorial Hospital, Taiwan, 2008
  • Master of Dental Surgery (Orthodontics), National University of Singapore, 2007
  • Bachelor of Dentistry, National University of Singapore, 2000

Professional Appointments and Committee Memberships

Professional Appointments

  • Chief Dental Officer, Ministry of Health
  • Registrar, Singapore Dental Council
  • Adjunct Associate Professor, Faculty of Dentistry, National University of Singapore

Committee Memberships

  • Chairman, Dental Specialists Accreditation Board, Ministry of Health
  • Chairman, MOH Dental MediSave Advisory, Ministry of Health
  • Chairman, Oral Health Therapists Accreditation Committee, Singapore Dental Council
  • Chairman, Geriatric and Special Needs Dentistry Workgroup, Ministry of Health
  • Member, Faculty Advisory Committee, National University of Singapore
  • Member, Selection Panel for HMDP Visiting Experts, Ministry of Health
  • Ancillary Member, Table of Surgical Procedures (TOSP) Review Committee, Ministry of Health
  • Medical Council Member, Smile Asia Alliance.

Professional Memberships

  • Fellow of the Academy of Medicine, Singapore
  • Member, Royal College of Surgeons, Edinburgh
  • Member, Singapore Dental Association
  • Member & Past President, Association of Orthodontist Singapore
  • International Member, American Association of Orthodontists
  • International Member, American Cleft Lip & Palate Association
  • Member & Past Honorary Secretary, Cleft Lip & Palate Association Singapore


  • Singapore Health Quality Service Award – Silver Award (2012)
  • KKH Long Service Award (2011)

Research Interests

  • Biomaterials.
  • Biology of tooth movement.
  • 3-D imaging.
  • Orthognathic surgery and accelerated tooth movement.
  • Aetiology, genetics and the prevention of cleft deformity in patients.


  • The temporary anchorage devices research terrain: Current perspectives and future forecasts!, Gandedkar NH, Koo CS, Sharan JS, Chng CK, Vaid NR, Semin Orthod. 2018 Mar; Article in Press.
  • Role of the “Craniofacial Orthodontist” in a “Craniofacial Team”, Gandedkar NH, Koo CS, Chng CK, Por YC, Yeow VKL, Sng KW, J Indian Orthod Soc. 2017 Dec; Article in Press.
  • Influence of bimaxillary surgery on pharyngeal airway in Class III deoformities and effect on sleep apnea: A STOP-BANG questionnaire and cone beam computed tomography study. Chai Kiat Chng, Narayan H. Gandedkar, Yong Chen Por, Vincent Kok Leng Yeow, Andrew Tjin Chiew Ow, Seah Tian Ee. Journal of Oral and Maxillofacial Surgery, Nov 2017; Vol 75; Issue 11; p2411-2421
  • Recent advances in Orthognathic Surgery Diagnosis and Management: 3D Image Acquisition, Virtual Surgical Planning, Rapid Prototyping and, Seamless Surgical Navigation. Narayan H. Gandedkar, Koo Chieh Shen, Chai Kiat Chng, Journal of Contemporary Orthodontics, Mar 2017; Volume 1(II)
  • Orthodontic orthognathic interventions in orthognathic surgical cases: “Paper surgery” and “model surgery” concepts in surgical orthodontics. Narayan H. Gandedkar, Chai Kiat Chng, Vincent Kok Leng Yeow. Contemporary Clinical Dentistry, Jul-Sep 2016; Volume 3(1)
  • Comparative Evaluation of the Pharyngeal Airway Space in Unilateral and Bilateral Cleft Lip and Palate Individuals With Noncleft Individuals: A Cone Beam Computed Tomography Study. NH Gandedkar, CK Chng, M A Baseer, YC Por, VKL Yeow. Cleft Palate-Craniofacial Journal, 21 Jul 2016
  • Implant-retained prosthetic auricular reconstruction in a Hemifacial Microsomia individual: A clinical report. Chng Chai Kiat, Narayan H Gandedkar. The International Journal of Prosthodontics, Jan-Feb 2017; Volume 30(1)
  • Surgery-first Orthognathic approach case series: Salient features and guidelines. Narayan H Gandedkar, Chng Chai Kiat, Winston Tan. Journal of Orthodontic Science, Jan-Mar 2016; Volume 5(1)
  • Presurgical nasoalveolar molding therapy in cleft lip and palate individuals: Case series and review. Narayan H Gandedkar, Chng Chai Kiat, Palaniselvam Kanesan, Wen Cong Lee, Por Yong Chen, Vincent Kok Leng Yeow. APOS Trends in Orthodontics, Sep 2015; 5(5): 206-214
  • Orthodontic-Orthognathic Management with secondary lip and nose revision of unilateral cleft lip and palate individual. Chng CK, NH Narayan, Sng Karen. Journal of World Federation of Orthodontists. Sep 2015; Vol. 4; Issue 3; p134–143
  • Gum pigmentation - An unusual adverse effect of sublingual immunotherapy Anne Goh, Chiang Wen Chin, Rajeshwar Rao R, Kang Liew Woei, Lim Hwee Hoon, Chng Chai Kiat. Asia Pac Allergy, 2014-Jul; Volume 4(3), Education & Teaching Material:177–179
  • A study of a novel aesthetic archwire on its frictional properties and its applications to orthodontics. Chng Chai Kiat, Kelvin Weng Chiong, Narayan Gandedkar, Chan Yiong Huak, Chew Chong Lin, APOS Trends in Orthodontics, Jan 2014; 4(1): 16-20
  • A new aesthetic fiber-reinforced polymer composite resin arch wire: A comparative Atomic force microscope (AFM) and Field-emission scanning electron microscope (FESEM) study Chng Chai Kiat, Kelvin Foong, Narayan Gandedkar, Chan Yiong Huak, Chew Chong- Lin Progress in Orthodontics 2014, 30 May 2014; 15:39

Research Trials

  • Influence of impacted maxillary canine position on adjacent teeth: A cone beam computed tomography study.
  • Influence of bijaw orthognathic surgery on pharyngeal airway space in individuals with Class III skeletal deformities : A retrospective study
  • Evaluation of effect of orthognathic jaw surgery osteotomies on acceleration of orthodontic teeth movement: A chemiluminescence and radioimmunoassay study
  • Impact of orthodontic brackets and orthodontic therapy on speech: A prospective study