Wisdom tooth Other area Christina Sim Poh Choo
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Clin Assoc Prof Christina Sim Poh Choo

Clin Assoc Prof Sim Christina

BDS (Singapore)

MSc (Conservative Dentistry)(London)

FAMS (Prosthodontics) 

Senior Consultant

National Dental Centre Singapore

Specialty: Prosthodontics

Conditions Treated by this Doctor:
Crowns, Dental Implant, Missing Teeth and Tooth Replacement, Teeth Whitening.

Clinical Appointments

  • Senior Consultant Prosthodontics, Department of Restorative Dentistry National Dental Centre SingaporeNational Dental Centre Singapore


Cl A/Prof Christina Sim is a Senior Consultant at the Prosthodontic Unit, Department of Restorative Dentistry, National Dental Centre Singapore. Prof Sim graduated with a BDS degree from the National University of Singapore and obtained an MSc degree from the University of London. She received further training in dental implantology and aesthetic dentistry at Loma Linda University under a Ministry of Health Manpower Development Plan award and was recently awarded the NMRC Research Training Fellowship.

Prof Sim’s work profile is divided between clinical work, education and research. Currently she is a Clinical Associate Professor, involved in the graduate prosthodontics residency program at the Faculty of Dentistry, NUS. She is also  the Chairperson of the Dental Specialist Accreditation Committee for Prosthodontics.

As Director, Clinical Research in the Singhealth Duke-NUS Oral Health Academic Clinical Program, she is involved in the development of NDCS’s research capabilities in conducting translational and clinical research. Her research interests include anti-cariogenic therapeutics and implant dentistry.


  • Fellowship in Prosthodontics and Implant Dentistry, Loma Linda University - (1996) 
  • Fellow, Academy of Medicine Singapore (FAMS) - (1993) 
  • Master of Science (Conservative Dentistry), University of London, Institute of Dental Surgery - (1988) 
  • Bachelor of Dental Surgery, National University of Singapore - (1986) 

Professional Appointments and Committee Memberships

  • Adjunct Associate Professor, Singhealth DUKE-NUS Oral Health Academic Clinical Program, Duke-NUS Medical School 
  • Clinical Associate Professor, Faculty of Dentistry, National University of Singapore
  • Director, Clinical Research, Singhealth Duke-NUS Oral Health Academic Clinical Program, DUKE-NUS Medical School – 2015 to present 
  • Chairperson, Dental Specialist Accreditation Committee (Prosthodontics) – 2015 to present 
  • Member, Joint Committee for Dental Specialist Accreditation – 2015 to present 
  • Head, Dental Surgery Assistant Certification Programme – 2002 to 2019
  • Immediate Past President, Prosthodontic Society Singapore – 2016 to 2017 
  • President, Prosthodontic Society Singapore – 2014 to 2016 
  • Member, NDCS Serious Reportable Event Quality Assurance Committee – 2013 to Present 
  • Chairperson, NDC Clinical Privileging and Competency Committee – 2012 to Present 
  • Vice-President, Prosthodontic Society Singapore – 2012 to 2014 
  • Member, Dental Specialist Accreditation Committee (Prosthodontics) – 2012 to 2015 
  • Committee member, Prosthodontic Society Singapore – 2003 to 2011 
  • Member, ITE Healthcare Academic Advisory Committee – 2007 to 2013 
  • Member, NDC Electronic Dental Records Project Working Committee – 2009 
  • Interim Secretary, College of Dental Surgeons, Academy of Medicine Singapore – 2009 
  • Hon Gen Secretary, Chapter of Dental Surgeons, Academy of Medicine – 2007 to 2009 
  • Member, Digital NDC Evaluation Workgroup – 2006 
  • Member, NDC Credentialing Committee – 2004 to 2012 
  • Member, Ethics Resource Panel, Singapore Dental Association – 2004 to 2007 
  • Vice-President, Aesthetic Dentistry Society (Singapore) – 2004 to 2009 
  • Treasurer, Prosthodontic Society Singapore – 2002 to 2003 
  • Honorary Auditor, Aesthetic Dentistry Society (Singapore) – 2001 to 2003 
  • Chairperson, DSA Certification Committee – 2001 
  • Immediate Past President, Prosthodontic Society Singapore – 2000 to 2001 
  • Chairperson, Nursing Curriculum Review Committee – 2000 to 2001 
  • Member, National Dental Centre Organising Committee for the 34th Singapore – Malaysian Congress of Medicine Combined Medical and Dental Scientific Meeting – 2000 
  • Member, Prosthodontics Specialist Training Committee, Academy of Medicine, Singapore – 1999 to 2003 
  • Member, Training Needs Analysis Steering Committee – 1999 to 2000 
  • President, Prosthodontic Society Singapore – 1998 to 2000 
  • Country Representative, Asian Academy of Prosthodontics – 1998 to 2000 
  • Chairperson, Courtesy Campaign Committee – 1998 
  • Co-ordinator, Dept of Restorative Dentistry Continuing Education Program – 1997 to 1999 
  • Vice - President and Chairperson (Continuing Education), Prosthodontic Society Singapore – 1996 to 1998 
  • Member, American Academy of Cosmetic Dentistry – 1995 
  • Vice-Chairperson, MOH Dental Update Committee – 1994 
  • Member, MOH Dental Update Committee – 1993 
  • Honorary General Secretary, Prosthodontic Society Singapore – 1992 to 1995 
  • Member, Scientific Program Subcommittee & Facilities Subcommittee, 78th World Dental Congress, FDI – 1990 


  • National Day Long Service Medal - 2015 
  • NMRC Research Training Fellowship - 2013 
  • ITE Service Appreciation Award - 2013 
  • Awarded the Best Clinical Research at the ITI Research Poster Competition, ITI World Symposium Geneva, 15-17 April 2010 for “Factors influencing resonance frequency analysis assessed by Osstell mentor during implant tissue integration: Instrument positioning, implant length and bone structure” 
  • EXSA-GOLD Award awarded by Excellent Service Award Committee, SPRING Singapore -2009 
  • NDCS Long Service Award NDCS - Jan 2009 
  • XSA-STAR Award awarded by Excellent Service Award Committee, SPRING Singapore - 2007 
  • NDCS STAR Award - 2004 
  • HMDP Fellowship for Advanced Fixed Prosthodontics - 1994 
  • University Bronze Medal - 1986 

Research Interests

  • Oral health of the irradiated head-and-neck cancer patient 
  • Anti-cariogenic therapeutics 
  • Dental implants 


Refeered articles 

“Oral microbial biofilm models and their application to the testing of anticariogenic agents” Sim CPC, Dashper SG, Reynolds EC Journal of Dentistry 2016;50:1-11 

 “Anti-caries effect of CPP-ACP in irradiated nasopharyngeal carcinoma patients” Sim CP, Wee J, Xu Y, Cheung YB, Soong YL, Manton DJ. Clinical Oral Investigations, 2015;19:1005-1011 

“Factors influencing resonance frequency analysis assessed by Osstell mentor during implant tissue integration: I. Instrument positioning, implant length and bone structure” Sim CPC, Lang NP Clinical Oral Implants Research 2010; 21: 598-604. 

“A 5-year Restrospective Study of Fixed Partial Dentures: Success, Survival and Incidence of Biological and Technical Complications” K Tan, ES-Y Chan, CPC Sim, KH Teoh, EK Chua, KW Yuen, NN Chen Singapore Dental Journal 2006; 28(1): 40-46 

“Effect of traditional and alternative intracoronal bleaching agents on microhardness of human dentine” HK Chng, AUJ. Yap, P Wattanapayungkul, CPC Sim J Oral Rehabilitation 2004; 31(8): 811-816 

“Perspective of DSA on Training Certification in Singapore” KC Poon, CPC Sim Singapore Dental J 2003; 25(1): 11-14  
“Color Stability of a Resin - Modified Glass Ionomer Cement” AUJ Yap, CPC Sim, V Loganathan Operative Dentistry 2001; 26(6): 591-595 

“Color Perception Among Different Dental Personnel” CPC Sim, AUJ Yap, J Teo Operative Dentistry 2001; 26(5): 435-439 

“The Need for DSA Certification : The Dental Surgeons’ Perspective” KC Poon, CPC Sim Singapore Dental J 2001; 24(1): 25-28 

“Human eye versus computerised color matching” AUJ Yap, CPC Sim, WL Loh, JH Teo Operative Dentistry 1999; 24(6): 358-363 

“Post-polymerisation color changes in esthetic restoratives” AUJ Yap, CPC Sim, V Loganathan Operative Dentistry 1999; 24(5): 305-306 

“The Effect of Dentine Bonding Agents on the Microleakage of Porcelain Veneers” C Sim, J Neo, EK Chua, BY Tan Dental Materials 1994; 10:278-281 

“Porcelain Bonded to Tooth: A Current Perspective” CPC Sim Singapore Dental J 1994; 19(1): 23-30 

“Comparison of Fit of Porcelain Veneers Fabricated Using Different Techniques” C Sim, RJ Ibbetson International J Prosthodontics 1993; 6(1): 36-42 

Closure of Median Diastema – A Conservative Approach C Sim P C, Chua E. K, Yuen K. W Restorative Dentistry 1991: 7(2): 32-33,37 

Books & Book Chapters 

“Non-invasive measures for osseointegration (RFA)” Lang NP, Han J, Sim C. In: Gianobile WV, Lang NP, Tornetti MS (Eds). Osteology Clinical Research Guidelines for Oral and Maxillofacial Regeneration. Osteology Foundation: Quintessence Publishing Co, 2014 

“Traffic Light-Matrix Management Model for Dental Caries” Ngo H, Sim C In: Yip K, Smales R (Eds). A Clinical Guide to Oral Diagnosis and Treatment Planning. London: British Dental Association, 2012. pp 106-117 

Published Abstracts 

“Synergistic Activity Between CPP-ACP And SnF₂ in a Polymicrobial Biofilm Model” Sim CPC, Dashper S, Shen P, Mitchell H, Butler C, Yuan Y, Walker G, Reynolds C, Reynolds EC. Caries Research 2017;51:68:146. 

“Edentulism, Oral Hygiene Care and Quality-of-life in Elderly Singaporeans” Sim CPC, Qian Y, Wu B. Journal of Dental Research 2017; 96 (Special Iss A):2673 

“SnF2 and CPP-ACP synergism in the remineralisation of enamel subsurface lesions in situ”. Sim CPC, Reynolds C, Shen PY, Yuan Y, Walker GD, Reynolds EC. Caries Research 2016;50:38:86. 

“Critical saliva parameters decrease following head-and-neck radiotherapy” Sim C, Manton DJ, Walker GD, Soong YL, Wee J Reynolds EC. Journal of Dental Research 2016;95 (Special Iss B):347 

“Xerostomia and salivary flow following intensity-modulated irradiation of nasopharyngeal carcinoma” Sim CPC, Wee J, Soong YL, Lim C, Pang E, Manton DJ Journal of Dental Research 2015;94 (Special Iss A):3443 

“In vitro polymicrobial Biofilm Model of Dental Caries”. Dashper SG, Sim CPC*, Shen P, Mitchell HL, Yuan Y, Liu SW, Walker GD, Hoffman BW, Reynolds C, Reynolds EC. Journal of Dental Research 2014;93(Spec Iss C):193433 (*presenter) 

“Anti-caries effect of CPP-ACP in irradiated nasopharyngeal carcinoma patients” Sim CPC, Wee J, Xu T, Cheung YB, Fong KW, Tan T, Soong YK, Cheah SL, Teoh KH, Manton DJ Journal of Dental Research 2013;92 (Special Iss B):79 

“In-Office Bleaching Effects on Color Changes of Tooth-colored Restorations” C Sim, ES-Y Chan, E Leong, A Yap, KC Shah Journal of Dental Research 2006; 85 (Special Iss B): 1666 

“Clinical Evaluation of 215 Etched Porcelain Veneers Over A 13-Year Period” C Sim, KW Yuen, YH Chan Annals of Academy of Medicine, Singapore 2005; 34 Suppl 9: S197: Abs SUR674 

“A 13-year prospective study on 215 etched porcelain veneers” C Sim, KW Yuen, YH Chan Journal of Dental Research 2004; 83(Special Iss A): 4081 

“Effect of Intracoronal Bleaching on Microhardness of Human Dentin” HK Chng, AUJ Yap, P Wattanapayungkul, CPC Sim Journal Endodontics 2002; 28(3): 265: Abs 265 

“Color Perception Amongst Different Dental Personnel” CPC Sim, AUJ Yap, JH Teo Journal Dental Research 2000; 79(5): 1322: Abs 56 

“Effect of Cement Film Thickness on Porcelain to Enamel Bonding” CPC Sim, AHL Tjan, P Liu Journal Dental Research 1996; 76 (Special iss): 21: Abs 30 

“Clinical Comparison of Two Bleaching Methods – A Split Mouth Study” CPC Sim, J Koh Journal Dental Research 1995; 74 (Special iss): 585: Abs 1486 

“A Clinical Report on 146 Etched Porcelain Veneers” C Sim, KW Yuen Journal Dental Research 1993; 72(4): 838: Abs 16 “The Effect of Dentine Bonding Agents on the Microleakage of Porcelain Veneers” Christina Sim P C, Neo J., Chua E. K., Tan B. Y Journal Dental Research 1992; 71(4): 1124: Abs 16 

“A Clinical Evaluation of Porcelain Laminates – A Preliminary Study” Chua E. K, Yuen K. W, Christina Sim P. C. Journal Dental Research 1991; 70(4): 860: Abs 46 

“The Fit of Porcelain Laminates Fabricated Using Four Techniques” Christina Sim, Ibbetson, R J Journal Dental Research 1990; 69(4): 1101: Abs 45

Research Trials