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Dr Lam, Walter Yu Hang portrait
Faculty Staff
Dr Lam, Walter Yu Hang
BDS, MDS (Pros), AdvDip Prosth (HKU), FHKAM (Dent Surg), FCDSHK (Pros); MFDS (RCSEd and RCPSG), FDS (RCSEd and RCPSG), MPros RCSEd, FRACDS
General Information
Clinical Assistant Professor in Prosthodontics
Restorative Dental Sciences
Phone Number
2859 0306
Research Theme
Clinical Artificial Intelligence
Areas of Research Expertise
Artificial Intelligence
Digital Dentistry
CAD/CAM Dentistry
Robotic Dentistry
Advanced Sorting
  1. Chawhuaveang DD, Yu OY, Yin IX, Lam WYH, Mei ML, Chu CH. Acquired salivary pellicle and oral diseases: A literature review, Journal of Dental Sciences 2021; 16(1): 523-529 doi:10.1016/j.jds.2020.10.007
  2. PAN Y, Tsoi JKH, Lam WYH, Pow EHN. Implant framework misfit: A systematic review on assessment methods and clinical complications, Clinical Implant Dentistry and Related Research 2021; 23(2): 244-258 doi:10.1111/cid.12968
  3. Lam YHW, Tse AKL, Tew IM, Man WHC, Botelho MG, Pow EHN. Impact of hypo-salivation on severe tooth wear: A ten-year cohort of patients received radiotherapy for nasopharyngeal carcinoma, Journal of Dentistry 2020; 97: article no. 103343-article no. 103343 doi:10.1016/j.jdent.2020.103343
  4. PAN Y, Tam JMY, Tsoi JKH, Lam WYH, Pow EHN. Reproducibility of laboratory scanning of multiple implants in complete edentulous arch: Effect of scan bodies, Journal of Dentistry 2020; 96: article no. 103329-article no. 103329 doi:10.1016/j.jdent.2020.103329
  5. Wang Y, Lam WYH, Luk HWK, Oilo M, Shih K, Botelho MG. The adverse effects of tungsten carbide grinding on the strength of dental zirconia, Dental Materials 2020; 36(4): 560-569 doi:10.1016/
  6. Molinero-Mourelle P, Helm A, Cobo-Vázquez C, Lam YHW, Azevedo L, Pow EHN, Gómez-Polo M. Treatment Outcomes of Implant-Supported Maxillary Obturator Prostheses in Patients with Maxillary Defects: A Systematic Review, International Journal of Prosthodontics 2020; 33(4): 429-440 doi:10.11607/ijp.6642
  7. PAN Y, Tam JMY, Tsoi JKH, Lam WYH, Huang R, Chen Z, Pow EHN. Evaluation of laboratory scanner accuracy by a novel calibration block for complete-arch implant rehabilitation, Journal of Dentistry 2020; 102: article no. 103476-article no. 103476 doi:10.1016/j.jdent.2020.103476
  8. Yeung C, Yu OY, Lam YHW, Leung KCM, Wong AWY, Chu CH. Improving Esthetics of Removable Partial Dentures Using Palatal Retentive Arms, Clinical, Cosmetic and Investigational Dentistry 2020; 12: 391-397 doi:10.2147/CCIDE.S266145
  9. Yeung C, Leung KCM, Yu OY, Lam WYH, Wong AWY, Chu CH. Prosthodontic Rehabilitation and Follow-Up Using Maxillary Complete Conventional Immediate Denture, Clinical, Cosmetic and Investigational Dentistry 2020; 12: 437-445 doi:10.2147/CCIDE.S271304
  10. Yeung C, Leung KCM, Yu OY, Lam WYH, Wong AWY, Chu CH. Distal Extension Denture – Case Report and Overview, Clinical, Cosmetic and Investigational Dentistry 2020; 12: 493-503 doi:10.2147/CCIDE.S276717
  11. Molinero-Mourelle P, Lam W, Cascos-Sánchez R, Azevedo L, Gómez-Polo M. Photogrammetric and intraoral digital impression technique for the rehabilitation of multiple unfavorably positioned dental implants – a clinical report, Journal of Oral Implantology 2019; doi:10.1563/aaid-joi-D-19-00140
  12. Lam WYH, Chan RST, Li KY, Tang KT, Lui TT, Botelho MG. Ten-year clinical evaluation of posterior fixed-movable resin-bonded fixed partial dentures, Journal of Dentistry 2019; 86: 118-125 doi:10.1016/j.jdent.2019.06.003
  13. Li J, Shen Z, Xu WYT, Lam YHW, Hsung RTC, Pow EHN, Kosuge K, Wang Z. A Compact Dental Robotic System Using Soft Bracing Technique, IEEE Robotics and Automation Letters 2019; 4(2): 1271-1278 doi:10.1109/LRA.2019.2894864
  14. Lam WYH, Hsung RTC, Cheng LYY, Pow EHN. Mapping intraoral photographs on virtual teeth model, Journal of Dentistry 2018; 79: 107-110 doi:10.1016/j.jdent.2018.09.009
  15. Lam YHW, Hsung TC, Choi WWS, Luk WK, Cheng YY, Pow EHN. A clinical technique for virtual articulator mounting with natural head position by using calibrated stereophotogrammetry, Journal of Prosthetic Dentistry 2018; 119(6): 902-908 doi:10.1016/j.prosdent.2017.07.026
  16. Botelho MG, Dangay S, Shih K, Lam YHW. The effect of surface treatments on dental zirconia: An analysis of biaxial flexural strength, surface roughness and phase transformation, Journal of Dentistry 2018; 75: 65-73 doi:10.1016/j.jdent.2018.05.016
  17. Botelho MG, Chan AWK, Newsome PRH, McGrath CPJ, Lam YHW. A randomized controlled trial of home bleaching of tetracycline-stained teeth, Journal of Dentistry 2017; 67: 29-35 doi:10.1016/j.jdent.2017.05.003
  18. Botelho MG, Dyson JE, Mui THF, Lam YH. Clinical audit of posterior three-unit fixed-movable resin-bonded fixed partial dentures – A retrospective, preliminary clinical investigation, Journal of Dentistry 2017; 57: 26-31 doi:10.1016/j.jdent.2016.12.003
  19. Botelho Michael G., Lam Walter Y H. A fixed movable resin-bonded fixed dental prosthesis - A 16 years clinical report, Journal of Prosthodontic Research 2016; 60(1): 63-67 doi:10.1016/j.jpor.2015.10.003
  20. Lam Walter Y H, Hsung Richard T C, Choi Winnie W S, Luk Henry W K, Pow Edmond H N. A 2-part facebow for CAD-CAM dentistry, Journal of Prosthetic Dentistry 2016; 116(6): 843-847 doi:10.1016/j.prosdent.2016.05.013
  21. Botelho Michael G., Chan Alex W K, Leung Nic C H, Lam Walter Y H. Long-term evaluation of cantilevered versus fixed–fixed resin-bonded fixed partial dentures for missing maxillary incisors, Journal of Dentistry 2016; 45: 59-66 doi:10.1016/j.jdent.2015.12.006
  22. Lam Walter Y H, Mcgrath Colman P J, Botelho Michael G.. Impact of complications of single tooth restorations on oral health-related quality of life, Clinical Oral Implants Research 2014; 25(1): 67-73 doi:10.1111/clr.12166
  23. Botelho MG, Ma X, Cheung GJK, Law RSK, Meier TCT, Lam WYH. Long-term clinical evaluation of 211 two-unit cantilevered resin-bonded fixed partial dentures, Journal of Dentistry 2014; 42(7): 778-784 doi:10.1016/j.jdent.2014.02.004
  24. Lam WYH, Ho EHT, Pow EHN. Rehabilitation of molar-incisor hypomineralization (MIH) complicated with localized tooth surface loss (TSL): A case report, Quintessence International 2014; 45: 377-379
  25. Lam Walter Y H, Botelho Michael G., Mcgrath Colman P J. Longevity of implant crowns and 2-unit cantilevered resin-bonded bridges, Clinical Oral Implants Research 2013; 24(12): 1369-1374 doi:10.1111/clr.12034
Conference Paper
  1. Botelho MG, Lam YH. An RCT Comparing Molar Two-and Three-unit RBBs, IADR/AADR/CADR 2019 General Session & Exhibition 2019;
  2. Li J, Lam YHW, Hsung TC, Pow EHN, Wu C, Wang Z. Control and Motion Scaling of A Compact Cable-driven Dental Robotic Manipulator, The IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) 2019;
  3. LI J, Zhang Y, Lam YHW, Hsung TC, Pow EHN, Wang Z. Robotic System for Automatic Dental Restorations in Oral Cavity, IEEE International Conference on Real-time Computing and Robotics (RCAR), 2018 2018;
  4. Botelho MG, Lam YH. RCT Comparing Molar Two-and Three-unit RBBs – Interim Findings, IADR-SEA (International Association for Dental Research (Southeast Asian Division)) Annual Scientific Meeting, Da Nang, Vietnam, 2018 2018; Presentation ID: 0135-Presentation ID: 0135
  5. Botelho MG, Lam YH. RCT comparing molar two and three-unit RBBs – interim findings, IADR/PER 96th General Session & Exhibition 2018; Presentation ID: 2521-Presentation ID: 2521
  6. Hsung TC, Lam YHW, Pow EHN. Image to Geometry Registration for Virtual Dental Models, International Conference on Digital Signal Processing (DSP) 2018; doi:10.1109/ICDSP.2018.8631861
  7. Yon MJY, Lam YHW, Tsoi KH. Do Economic and Dental Resources Affect Older Persons’ OHRQoL?, IADR/PER 96th General Session & Exhibition 2018; 97(Spec Iss B): no. 3003-no. 3003
  8. Li J, Wang Z, Lam YHW, Pow EHN, Hsung TC. A Customizable, Compact Robotic Manipulator for Assisting Multiple Dental Procedures, IEEE International Conference on Advanced Robotics and Mechatronics, ICARM2018 2018; 1-6
  9. Botelho MG, Lam YHW, Lo ECM. RCT Comparing Molar Two- and Three-unit RBBs- Preliminary Findings, Journal of Dental Research (Spec Issue) 2017; 96(Spec Iss A)
  10. Yon MJY, Tsoi KH, Lam YH. Do elderly from developed countries have better oral health-related quality of life? An analysis in 15 countries, U21 Undergraduate Research Conference, URC 2016 2016;
  11. Lam YH, Ngan HYT, Hsung RTC, Luk HWK, Goto TK, Pow EHN. Validation of a novel geometric coordination registration using manual and semi-automatic registration in cone-beam computed tomogram, IS&T International Symposium on Electronic Imaging, EI 2016 2016; PMVA-373.1-IPMVA-373.6 doi:10.2352/ISSN.2470-1173.2016.14.IPMVA-373
  12. Lam WYH, Ngan HYT, Wat PYP, Luk HWK, Goto TK, Pow EHN. Image calibration and registration in cone-beam computed tomogram for measuring the accuracy of computer-aided implant surgery, Proceedings of SPIE 2015; 9405: article no. 94050A, p. 1-article no. 94050A, p. 12 doi:10.1117/12.2083341
  13. Lam WYH, Ngan HYT, Wat PYP, Luk HWK, Pow EHN, Goto TK. Novel geometric coordination registration in cone-beam computed tomogram, Applied Imagery Pattern Recognition Workshop Proceedings 2014; 1-6 doi:10.1109/AIPR.2014.7041922
  14. Lam WYH, McGrath CPJ, Botelho MG. Impact of complications of single tooth fixed restorations on OHRQoL, Journal of Dental Research 2012; 91(Special Issue C)
  15. Lam YH, Botelho MG, McGrath CPJ. Comparison of Longevity of Implant-supported Crown and Toothsupported 2-unit Cantilevered Resin Bonded Bridge in a Bounded Single Tooth Space after an Observation Period of at Least 5 Years, International Dental Journal 2012; 62(Suppl. 1): 72, abstract no. FC101-72, abstract no. FC101 doi:10.1111/j.1875-595X.2012.00136.x
Honours and Awards
  1. 2019. Lam YHW, Chu CH, Leung MYY, Ho KL, Duangthip D, Gao S, Chen J. Faculty Knowledge Exchange (KE) Awards - Faculty of Dentistry: Smiley action day: Empowering non-profit organisation & engaging community to enhance oral health with the utilization of mobile dental services: The University of Hong Kong.
  2. 2018. YON JY, Lam YHW, Tsoi KH. The Jonathan Ship Award: IADR Geriatric Oral Research Group.
  3. 2015. Botelho MG, Chan AWK, Lam YH, Leung NCH. Oral Presentation, Best paper in Prosthodontics: IADR SEA 29th Annual Scientific Meeting.
Knowledge Exchange
  1. 25 October 2019: Yu Yee Tak Esther, Lam Cindy Lo Kuen, Tse Tsui Yee Emily, Wong Carlos King Ho, Bedford Laura Elizabeth, Fong Yuk Fai Ben, Yim Wing Yee, Liu Sze Nga Kiki, Lam Yu Hang Walter. 健康講座:「如何保持牙齒健康?」.
  2. 30 September 2019: Lam Yu Hang Walter, Chu Chun Hung, Leung Mike Yiu Yan, Ho King Lun, Duangthip Duangporn. 2019/20 KE Impact Project Funding: KE-IP-2019/20-14: Evaluating the Impact of the Mobile Dental Service Program on Community Residents ($100,000).
  3. 01 July 2019: Lam Yu Hang Walter, Chu Chun Hung, Leung Mike Yiu Yan, Ho King Lun, Duangthip Duangporn, Sherry S. Gao , Kitty J. Y. Chen . Faculty Knowledge Exchange Award 2019 (Faculty of Dentistry) for ‘Smiley Action Day: Empowering non-profit organisation & Engaging Community to Enhance oral health with the utilization of mobile dental services’ (team award).
  4. 01 September 2018: Ho King Lun, Lam Yu Hang Walter, Chu Chun Hung, Leung Mike Yiu Yan, Duangthip Duangporn. 2018/19 KE Impact Project Funding: KE-IP-2018/19-28: Assessing the impact and potential for scale-up of the community outreach dental service program on partnered NGO and community residents ($100,000).
  5. 04 May 2017: Gu Min, Lam Yu Hang Walter. Introduction of braces.
  6. 04 May 2017: Yang Yanqi, Gu Min, Lam Yu Hang Walter. Interview with iCable on "3D scanning technology and aesthetic orthodontics" .
  1. Project Title: Artificial Intelligence-Design of Maxillary Single-tooth Dental Prostheses
    Grant Type: General Research Fund (GRF)
    Funding Year: 2021
    Amount: HKD945740
    Principal Investigator: Dr Lam, Yu Hang Walter
    Dr Koohi-Moghadam Mohamad, Dr Luk Wai Kuen, Professor McGrath Colman, Dr Tsoi Kit Hon, Professor Wang Wen Ping
  2. Project Title: A proof of concept for all-ceramic Zirconia resin bonded bridges for short span missing teeth
    Grant Type: Seed Fund for Basic Research
    Funding Year: 2015
    Amount: HKD43000
    Principal Investigator: Dr Botelho, Michael George
    Co-investigator(s): Professor Lo Edward Chin Man, Dr Lam Yu Hang Walter
HKU Committee Appointments
  1. 05 August 2016-04 August 2020: Faculty of Dentistry, Board of the. The teachers who are members of the Faculty and who are full-time employees of the University
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