Professor Sihui Zhang

Title

Accuracy of Jaw Relation Transfer Using a Digital Transfer Table

Abstract

This study designed a digital transfer table (DTT) based on reverse engineering to optimize the digital jaw relationship transfer workflow and evaluate its accuracy. Fabricated by 3D printing, the DTT simplifies the transfer from the Artex anatomical facebow to a virtual articulator. Twenty-six volunteers with individual normal occlusion were enrolled and allocated to the anatomical facebow (AFB) group and DTT group. Trueness was assessed via reference plane angle, condyle-cusp distances, root mean square error (RMS), and 3D axial deviations, while precision was evaluated by the intraclass correlation coefficient (ICC) of repeated transfers. No significant differences were found in occlusal plane inclination or 3D axial deviations; minor differences in left condyle-cusp distances and RMS were clinically acceptable, with an ICC of 0.79 for precision. The DTT enables accurate spatial mapping of dental arch scans to virtual articulators, meeting clinical accuracy standards and enhancing operational efficiency.

Biography

Dr. Sihui Zhang, D.D.S., Ph.D., currently serves as Vice Dean of the School of Stomatology, Fujian Medical University, and Associate Professor in the Department of Implantology at the Affiliated Stomatological Hospital. She possesses extensive clinical expertise in digital oral implantology and occlusal rehabilitation, with a particular focus on precise full-arch and partial edentulism restoration utilizing advanced digital technologies. Her research primarily investigates precision analysis in digital implantology. As Principal Investigator, she has secured and led multiple competitively funded research projects, including grants from the National Natural Science Foundation of China and the Health Commission of Fujian Province. Her scholarly contributions include publications in leading domestic core journals and high-impact international journals indexed in the Science Citation Index (SCI), in addition to serving as lead translator for several academic monographs. In recognition of her outstanding clinical proficiency and educational contributions, Dr. Zhang has received numerous prestigious honors, including First Prize in the 8th BITC National Dental Implantation Competition, the title of Fujian Province's "Most Dedicated Physician," and First Prize for Provincial Teaching Achievement.

Professor Wen Zhou

Title

Anti-Peri-Implantitis Effect of Modified Ti in Hyperlipidemic Microenvironment

Abstract

This study develops dual-functional Ti-PTA implants to combat peri-implantitis in hyperlipidemic conditions by inhibiting pathogens and promoting osteogenesis. Titanium (Ti) was treated with oxygen non-thermal plasma and grafted with organosilicon quaternary ammonium salt (Ti-PTA). Physicochemical properties, biocompatibility, osteogenesis, and antibacterial effects were evaluated in vitro and in vivo using a rat model with hyperlipidemia and dental implants. Ti-PTA retained surface morphology and roughness (p>0.05), improved hydrophilicity (p<0.05), and showed good biocompatibility. It reversed hyperlipidemia-induced growth inhibition, boosting osteoblast proliferation 2-fold (p<0.05), ALP activity, and mineralization 4-fold versus Ti (p<0.05). Ti-PTA reduced P. gingivalis and F. nucleatum metabolism to 30% of Ti (p<0.05), with more dead bacteria observed. In vivo, Ti-PTA enhanced osseointegration and antibacterial capacity (p<0.05). Osteogenic and antibacterial Ti-PTA is promising for preventing and treating peri-implantitis in hyperlipidemic microenvironments.

Biography

Dr. Wen Zhou is associate clinical professor and postgraduate student tutor at School and Hospital of Stomatology, Fujian Medical University. She is also a Fijian High-level talent. She obtained her BDS to MDD degree from the West China School of Stomatology, Sichuan University. She worked as visiting scholar in University of Maryland for one and a half year, sponsored by CSC scholarship. Her research focuses on the dental biomaterials and oral microbiology. Dr. Zhou has published 14 articles on journals such as Acta Biomaterialia, Dental Materials and Journal of Dentistry. Additionally, She serves as peer reviewer for Dental Materials and other dental journals. She has accomplished 5 research projects, including projects supported by the Natural Science Foundation of Fujian Province, Postdoctoral Research Foundation of China.

Professor Xindie He

Title

Neural–Skeletal Crosstalk in Bone Regeneration: Implications for Biomaterial Design

Abstract

Bone regeneration is a complex process involving osteogenic cells, vascular networks, immune responses, and mechanical cues. Emerging evidence highlights the crucial regulatory role of peripheral sensory nerves, which release neuropeptides such as CGRP and substance P to promote osteogenesis, angiogenesis, and bone remodeling. Conversely, bone cells can modulate sensory nerve activity through mediators including ATP, glutamate, prostaglandins, and NGF, forming a bidirectional bone–nerve communication axis. This interaction is particularly important in craniofacial and oral bone remodeling, such as orthodontic tooth movement and peri-implant healing. However, most current biomaterials focus mainly on osteoconductivity and angiogenesis while neglecting neural regulation. Advanced biomaterials—including nanostructured, piezoelectric, conductive, and ion-releasing materials—may modulate bone–nerve interactions by influencing mechanotransduction pathways such as Piezo1. This presentation highlights the mechanisms of bone–nerve crosstalk and discusses biomaterial strategies for neuralized bone regeneration.

Biography

Dr. Xindie He is assistant professor at the Stomatological Hospital affiliated with Fujian Medical University. She received her PhD from Tohoku University, Japan. Her research focuses on the interactions between biomaterials and bone homeostasis, particularly in the context of bone regeneration and remodeling. In 2022, she published a first-author paper in Acta Biomaterialia, which was selected as a noteworthy article by the Japan Society for Bone and Mineral Research. Dr. He received the Early Young Investigator Award at the International Oral Health Symposium in 2022 and was a finalist for the IADR Hatton Award (Japan Division) in 2021.

Professor Xiongcheng Xu

Title

The Role of Nanosilicates in Periodontal Regeneration

Abstract

The recent development of nanobiomaterials has shed new light on the field of periodontal tissue regeneration. Nanosilicates, a class of artificially synthesized two-dimensional (2D) disk-shaped nanoparticles, have garnered substantial attention in regenerative biomedical applications owing to their distinctive structure, exceptional biocompatibility, and bioactivity. This study endeavors to comprehensively evaluate the influence of nanosilicates on periodontal regeneration. The effects of nanosilicates on periodontal ligament cells (PDLCs) regarding osteogenesis, cementogenesis, and angiogenesis were systematically assessed, and the potential mechanisms were explored through RNA sequencing. The results indicated that nanosilicates improved the osteogenic and cementogenic differentiation of PDLCs; notably, these regulatory effects were closely correlated with the activation of the PI3K-AKT signaling pathway. Moreover, nanosilicates enhanced angiogenesis indirectly by modulating the paracrine secretion of PDLCs. Subsequently, nanosilicates were implanted into rat periodontal defects to confirm their regenerative potential. Both micro-CT and histological analyses indicated that nanosilicates could facilitate periodontal tissue regeneration in vivo. These findings provide insights into the bioactivity and underlying mechanisms of nanosilicates on PDLCs, highlighting their potential as a therapeutic option for periodontal therapy.

Biography

Dr. Xiongcheng XU is assistant professor in Periodontology at the School and Hospital of Stomatology, Fujian Medical University. He obtained his BDS, MDS, and PhD degrees from the School of Stomatology at Fujian Medical University. His research interests focus on periodontal regeneration and clinical trials of periodontal care strategies. Dr. Xu has published over 10 peer-reviewed journal articles and secured 8 research grants, including one supported by the National Natural Science Foundation of China. Additionally, he has translated one academic monograph. He currently serves as a Young Committee Member of the Periodontology Committee of the Fujian Stomatological Association.

Professor Ma Yun

Title

A 3D-printed zirconia membrane for predictable vertical bone augmentation

Abstract

Vertical bone augmentation (VBA) remains a challenge in guided bone regeneration (GBR) treatment. The physicochemical properties of barrier membranes are essential for the final efficacy. Ideal membrane characteristics for VBA include space-maintaining capacity, occlusive properties, biocompatibility, personalization, and biological activity. The commonly used titanium meshes still face problems of mesh exposure, pseudo-periosteum formation, and a lack of biological activity, which affect the predictability of GBR. With excellent mechanical properties and processing flexibility, 3D-printed zirconia has the potential to be applied in the preparation of GBR membranes. In view of this, this talk will present some of our research findings involving the biological properties of zirconia fabricated using different 3D-printing technologies and the application of 3D-printed zirconia membrane. This study provides an alternative membrane material for GBR treatment and is expected to improve the predictability of vertical bone defect reconstruction.

Biography

Dr. Ma is assistant professor in the Department of Prosthodontics at the School and Hospital of Stomatology, Fujian Medical University. Dr. Ma graduated from the School of Stomatology, Fujian Medical University, where he obtained his Doctor of Medicine (M.D.) degree in Stomatology. During his doctoral studies, his research focused on the accuracy of digital impressions and 3D-printed zirconia, and he completed a series of in-depth studies under the guidance of renowned experts in the field. Dr. Ma has published 6 international peer-reviewed papers in core journals (including Dental Materials, Journal of Prosthodontic Research, and The International Journal of Oral & Maxillofacial Implants), and has been granted 4 patents, focusing on the application of new materials in guided bone regeneration and the factors influencing the accuracy of intraoral scanners.

Professor Jiang Chen

Biography

Dr. Jiang CHEN, Professor, Director of Institute of Oral Homeostasis Medicine and Fujian Key Laboratory of Oral Diseases Research, Fujian Medical University. He obtained his M.D. and Ph.D. degrees in Oral and Maxillofacial Surgery from West China School of Stomatology, Sichuan University, China. He worked as a visiting scholar in Harvard School of Dental Medicine, Tufts-New England Medical Center, Massachusetts (USA) from 2000 to 2001. His research interests include digital occlusal rehabilitation, maxillofacial tumors, oral implantology, and clinical research of oral aesthetics. He has presided over nearly 20 national and provincial-level research projects including those supported by the National Natural Science Foundation of China, published nearly 100 academic papers, and edited, translated or co-edited 11 academic monographs. Due to the outstanding achievements, he awarded as “National Excellent Scientist” and “Recipient of special subsidies acknowledged by the State Council”. He is an expert of National Natural Science Foundation of China (NSFC) and China Scholarship Council (CSC), Reviewer of Clinical Oral Implants Research; Editor-in-Chief of Journal of Oral and Maxillofacial Implants (JOMI) Chinese Edition; Special Reviewer of Chinese Journal of Stomatology; Deputy Editor-in-Chief of Journal of Stomatology. Being a well recognized expert in his field, Prof. Chen is appointed as leader of Implant Specialty Group, National Stomatological Medical Quality Control Center; Executive Director of Chinese Stomatological Association, Director of Oral Implantology Committee and Oral Aesthetics Committee of Chinese Stomatological. He was also elected as a Fellow of International College of Dentists (FICD).

Professor Xiaojing Huang

Biography

Dr. Huang Xiaojing is the Dean and Professor (Endodontics and Operative Dentistry) at the School and Hospital of Stomatology, Fujian Medical University. She began her career in endodontics and operative dentistry after receiving her BSc, MSc, and Ph.D. degrees from the West China School of Stomatology, Sichuan University. She worked as a visiting scholar at King’s College London (UK) from 2003 to 2004. Her research interests are in microbiology and cariology, as well as the application of new clinical techniques, such as lasers. She has published over 100 publications and has accomplished over 20 national and provincial research projects, have been distinguished by prestigious awards such as the Second Prize of Fujian Medical Science and Technology Award and the Third Prize for Scientific and Technological Progress in Fujian Province. Due to her outstanding achievements, she was recognized as a “High-level Talents in Fujian Province”, “Outstanding Contribution to the Health System as a Young and Middle-aged Expert”, and “Excellent Returned Talent”. Professor Huang is in charge of national course “Endodontics” and involved in editing national undergraduate teaching material “Endodontics”. She was appointed as the director-elect of the Geriatrics Dentistry Committee in Chinese Stomatological Association and the standing member of the Laser Dentistry Committee in Chinese Stomatological Association. She also serves as the vice president of Fujian Provincial Dental Association and the director of Fujian Provincial Dental Association’s Laser Dentistry Committee.

Professor Hao Yu

Biography

Dr. Hao Yu is a Clinical Professor in Prosthodontics and Associate Dean at the School and Hospital of Stomatology, Fujian Medical University. He also serves as Dean of the Overseas Education College and Director of the International Students Office. Dr. Yu holds dual doctoral degrees from Wuhan University (China) and the University of Zurich (Switzerland), and currently holds adjunct professorships at the University of Zurich and Nagasaki University. He is Vice President of the Chinese Prosthodontic Society (CPS), Vice President of the Western Returned Scholars Association at Fujian Medical University, and a Standing Committee Member of the Chinese Dental Materials Society. His research interests encompass dental materials, tooth bleaching, prevention of dental erosion, and dental education. He has authored over 100 peer-reviewed publications and conference presentations, and serves on the Editorial Board of the Journal of Prosthodontic Research and as Associate Editor of Frontiers in Dental Medicine. Dr. Yu has received numerous awards, including the First Prize in the Fujian Data Application Competition (2024), the Fujian Provincial Science & Technology Award for Young Talents (2021), and the Fujian Medical Science and Technology Award (2023). In 2017, he was elected as a Fellow of the International College of Dentists (FICD).

Professor Kai Luo

Biography

Dr. Kai LUO, Associate Dean and Professor (Periodontology) of School and Hospital of Stomatology Fujian Medical University. He obtained BDS, MDS and PHD from School of Stomatology, Fujian Medical University and School of Stomatology, Wuhan University respectively. He worked as a visiting scholar in Institute of Health and Biomedical Innovation, Queensland University of Technology (AUS) from 2012 to 2013. His research interests are periodontal regeneration and clinical trails of periodontal care strategies. He has published more than 40 peer reviewed journal articles and accomplished over 10 research projects, including 2 projects supported by the National Natural Science Foundation of China. He translated and co-edited 4 academic monographs. He appointed as executive member of Periodontology Committee in Chinese Stomatology Association as well as Director of Periodontology Committee of Fujian Stomatology Association.

Professor Dali Zheng

Biography

Dr. Dali ZHENG, professor of Fujian Key laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University. He received BSc degree in Biochemistry at Fudan University, graduated with MSc in Immunology at Fujian Medical University, and obtained PhD degree in Biochemistry and Molecular Biology at Shanghai Jiaotong University. He was a postdoctoral research fellow at University of Missouri (USA) and Washington University in St Louis (USA) from 2009 to 2013, and research associate at Moffitt Cancer Center and University of South Florida (USA) from 2013 to 2017. He won the title of “Distinguished Professor of Minjiang Scholarship” in 2018 and is serving as academic editor for Scientific Reports, Biomedical Reports, and Frontiers in Bioscience, reviewer for several international journals such as Ebiomedicine, Cancer Letters, Journal of Dental Research and so on. He published more than 90 research papers in international journals including Nature Nanotechnology, IJOS, J Nanobiotechnology, Oncogene, and won First-class prize of Natural Science Award of Ministry of Education (4th authorship) in 2016 and Second-class prize of Scientific Innovation Award of Fujian Province (2nd authorship) in 2017. His research is mostly focused on the molecular biology of oral cancer and oral microenvironment.

Professor Hongbing Lyu

Biography

Dr. Lyu Hongbing is currently the Director of the Department of Endodontics at the Hospital of Stomatology, Fujian Medical University, where he serves as Clinical Professor (specializing in Endodontics). He received his Bachelor’s, Master’s, and Doctoral degrees from the School of Stomatology at the Fourth Military Medical University. Since then, he has been engaged in clinical practice and research in the field of endodontics. From 2011 to 2012, he served as a Visiting Scholar at the University of California, San Francisco (UCSF) in the United States.

His research interests primarily focus on the molecular mechanisms of dental-derived stem cells and oral regenerative medicine, as well as the application of technologies such as microscopes and CBCT in the diagnosis and treatment of endodontic diseases. Professor Lyu has published over 30 academic papers, including more than 10 indexed in the Science Citation Index (SCI). He is the chief translator of three monographs: Best Clinical Practice Guidance for Endodontics, CBCT Clinical Application in Endodontics, and Practical Root Canal Therapy. He has presided over more than 10 research projects, including General and Key Projects of the Fujian Provincial Natural Science Foundation, the Fujian Provincial Health System Young and Middle-aged Backbone Talent Training Project, and Medical Innovation Projects. Under his supervision, graduate students have won the 2018 Fujian Provincial Outstanding Academic Master’s Thesis Award and National Scholarships in 2019 and 2024.

Professor Lyu Hongbing is currently responsible for teaching Oral Histopathology, a provincial-level first-class undergraduate course in Fujian Province. He serves as a Standing Committee Member of the Oral Pathology Committee of the Chinese Stomatological Association, a Standing Committee Member of the Geriatric Stomatology Committee of the Chinese Stomatological Association, and the Chairman of the Geriatric Stomatology Committee of the Fujian Stomatological Association.

Professor Cynthia Yiu

Title

Understanding Autism Spectrum Disorder: Implications for Pediatric Dental Care

Abstract

Autism Spectrum Disorder (ASD) presents unique challenges and opportunities in pediatric dental care, requiring a nuanced and individualized approach to ensure effective treatment and positive experiences. This comprehensive lecture offers an in-depth overview of ASD, highlighting its core characteristics, including sensory sensitivities, communication differences, and behavioral patterns that influence oral health management. The session will address common dental challenges faced by children with autism, such as difficulties with oral hygiene routines and cooperation during dental procedures. Emphasizing evidence-based strategies, the lecture will explore practical techniques for behavior management, including desensitization, visual aids, and positive reinforcement, alongside sensory-friendly modifications to the clinical environment. Attendees will learn about tailored communication methods suited to children with autism, fostering better understanding and cooperation. The importance of collaborative efforts between caregivers and dental professionals will be emphasized to develop personalized care plans that promote oral health and reduce anxiety. By creating a supportive and inclusive dental setting, practitioners can improve patient comfort, cooperation, and overall well-being. This session aims to equip dental professionals with the knowledge and skills necessary to deliver compassionate, effective, and accessible dental care to children on the autism spectrum, ultimately enhancing their oral health outcomes and quality of life.

Biography

Professor Cynthia Yiu is a Chair Professor in Paediatric Dentistry, Associate Dean (Taught Postgraduate Education and Clinical Affairs) and Postgraduate Programme Director in Paediatric Dentistry at the Faculty of Dentistry, the University of Hong Kong (HKU). Additionally, Prof Yiu is the Director of the Prince Philip Dental Hospital in Hong Kong. She obtained her Bachelor of Dental Surgery degree from King’s College, University of London and completed her Master of Dental Surgery (MDS) degree in Paediatric Dentistry as well as Doctor of Philosophy (PhD) degree from HKU. Prof Yiu is a Fellow of the Hong Kong Academy of Medicine (Dental Surgery), the College of Dental Surgeons of Hong Kong (Paediatric Dentistry) and the International College of Dentists. In 2011 and 2013, she received the “Faculty Outstanding Teacher Award” and “Outstanding Team-Teaching Award” from HKU, respectively. She has supervised over 10 PhD students and 30 MDS students. Currently, she serves on the Editorial Board of Journal of Dentistry, International Dental Journal and BMC Oral Health. Her research focuses on adhesive dentistry, cariology and paediatric oral health. Prof Yiu’s research team has received several research awards at the annual meetings of International Association for Dental Research (IADR) and International Association of Paediatric Dentistry (IAPD). She was a member of the Fellowships Committee of IADR from 2021 to 2023 and served as the Chairman from 2023 to 2024. Prof Yiu has published over 250 journal papers and book chapters, with a focus on prevention of dental caries and improvement of the durability of adhesive restorations.

Professor Ollie Yu

Biography

Professor Ollie Yu is the Assistant Dean (Knowledge Exchange and Development) and a Clinical Assistant Professor at the Faculty of Dentistry, HKU. She is a Fellow in Dental Surgery of the Royal College of Surgeons of Edinburgh, the Royal College of Surgeons of England, the Royal College of Physicians and Surgeons of Glasgow, the International College of Dentists, and the Higher Education Academy. She has authored over 90 articles in peer-reviewed international journals. Professor Yu’s team has presented more than 40 studies at international conferences and received multiple prestige awards. She has been invited to deliver lectures and workshops at over 20 international and regional conferences. Prof Yu’s clinical and research interest are cantered on Cariology and Restorative Dentistry, with a particular focus on caries microbiome, detection, prevention and management of dental caries, and prevention and management of dental erosion.

Professor Alice Chan

Biography

Professor Alice Chan is a Clinical Assistant Professor of the Faculty of Dentistry, The University of Hong Kong (HKU). She received her postgraduate and specialist training in prosthodontics in the University of Hong Kong and is a registered prosthodontist in Hong Kong. She is a fellow of the Royal College of Surgeons of Edinburg, the College of Dental Surgeons in Hong Kong and the Hong Kong Academy of Medicine. Professor Chan has been practicing in dentistry for 20 years particularly among older adults. Her research interest is oral health care in older adults. She has published over 25 scientific articles in international peer-reviewed journals. She has received multiple awards in international conferences including the Outstanding Research Award in the 15th International Conference of the Asian Academy of Preventive Dentistry. She has been invited as speakers in international conferences such as Asia Pacific Dental Congress 2024. She serves as journal editors in BMC Oral Health and Frontiers in Oral Health and journal reviewers in several journals including Journal of Dentistry and Caries Research.

Dr Iris Yin

Biography

Dr Iris Yin is a Research Assistant Professor in Cariology at the Faculty of Dentistry, The University of Hong Kong (HKU). Dr Iris Yin holds a Master of Science from King’s College London and a Doctor of Philosophy from The University of Hong Kong (HKU). She specialises in the field of development and application of biomaterials for minimum intervention oral care. She has published 50 articles in international peer-reviewed journals. One of her articles was awarded as WILEY Top Cited Article for 2020-2021 and received more than 2,000 citations. As a lead researcher and principal investigator, Dr Yin has secured three prestigious grants totalling over three million Hong Kong dollars. She is included in Stanford’s List of World’s Top 2% Scientists from 2023 to 2025.

Dr John Niu

Biography

Dr John Niu is a Research Assistant Professor in Cariology at the Faculty of Dentistry, The University of Hong Kong (HKU). He holds a PhD degree from The University of Hong Kong and BDS and MDS degrees (Endodontology and Cariology) from Wuhan University. Dr Niu has published thirty-nine articles in dental journals. His research focuses on caries prevention using novel bioactive materials. He has been awarded research grants totalling 1.3 million and has published thirty-eight articles in international journals. His Google Scholar H-index is 16. He has extensive international cooperation. He is a visiting Research Fellow at Newcastle University.

Professor Chengfei Zhang

Title

The Success of Root Canal Therapy

Abstract

The success of root canal therapy depends on canal shaping, disinfection, and hermetic obturation, the three essential procedures. Nevertheless, locating the canal orifice and subsequent canal negotiation is the critical step; otherwise, canal shaping, disinfection, and obturation cannot be performed. The location of canals can be difficult, especially in single-root teeth, which are often thought to have only one canal. In fact, in lower incisors and premolars, two or more canals are not uncommonly found and treated. This talk will present a series of cases treated with a missing canal that were successfully retreated. Learning objectives are as follows: Radiographic signs indicating the second canal; technique for taking PA to disclose canals; skills for locating canals.

Biography

Professor Chengfei Zhang is a clinical professor in Endodontics, Faculty of Dentistry, The University of Hong Kong (HKU). He serves as an editorial board member for International Endodontic Journal, International Dental Journal, and Bioengineering. He obtained his DDS and his Ph.D. degree from Peking University. He joined the Faculty of Dentistry HKU in 2009. His innovative research activities are internationally recognized, and he was awarded the IADR William J Gies Award for Biomaterials and Bioengineering Research, the Journal of Endodontics award for best paper, and the IADR distinguished scientist. His research in endodontic etiopathogenesis and pulp regeneration has been funded by Hong Kong RGC and Chinese mainland funding. He has lectured on many occasions nationally and internationally, particularly in IADR/ AADR and IADR-SEA meetings, and published over 200 journal papers/ book chapters.

Professor James Tsoi

Title

3D printing of dental zirconia

Abstract

3D printing, a.k.a. additive manufacturing, is the construction of a three-dimensional object directly from a CAD model or a digital 3D model, commonly with layer-by-layer deposition of material. This method may allow you to produce complex shapes using less material than traditional manufacturing (such as subtractive milling) methods. Zirconia can be made using 3D printing technologies. However, challenges exist, e.g. debinding/sintering, optical properties, colour gradient and strength. In this talk, some of the newest findings from the HKU Dental materials team will be presented.

Biography

Professor James Tsoi is an Associate Professor in Dental Materials Science and Assistant Dean (Innovation) at HKU Faculty of Dentistry. He received BSc in Applied and Analytical Chemistry and PhD in Dental Materials Science, from the University of Hong Kong. He also holds the Memberships of Royal Society of Chemistry (MRSC) and British Computer Society (MBCS), and Fellow in Advanced HE (FHEA). James is actively engaged in a number of research areas including: Dental materials science (mechanical behaviours, surface/bonding and ceramics), smart manufacturing (CAD/CAM and 3D printing), digital dentistry (AI and data science) and dental education (basic science and e-learning). He has authored more than 130 peer-reviewed journal articles, published and granted 10 patents, graduated 36 MSc and 11 PhDs, and been awarded 8 times in international conferences since he joined HKU Dentistry as a faculty member in 2012. He is currently serving several SCI journals’ editorial board (including Dental Materials), being President-elect in IADR-Dental Materials Group, Member-at-large in the Academy of Dental Materials, and Hong Kong head-of-delegate in ISO/TC 106 (Dentistry).

Professor Chris Fok

Title

Management of Peri-implant Diseases in Practice

Abstract

With the rise of implants to improve function following tooth loss, implant-related complications are increasingly relevant to daily clinical practice. Among these complications, peri-implant diseases, especially peri-implantitis, present clinical challenges from diagnosis, treatment to maintenance. Worse, peri-implant diseases often happen in a compromised condition in the presence of complicating factors. These factors, related to suboptimal implant position and angulation, supra-structure profile, or hard and soft tissue conditions, often present additional challenges and unpredictability to the management of peri-implant diseases. In light of this, this presentation will discuss practical management strategies in peri-implant diseases from prevention to management in daily clinical encounters.

Biography

Professor Chris T. C. Fok earned his Bachelor of Dental Surgery (BDS) degree and Master of Dental Surgery (MDS) degree in Periodontology with Distinction from HKU in 2015 and 2020, respectively. He obtained the Certificate of Completion of Specialized Training in Periodontology & Implant Dentistry from European Federation of Periodontology in 2020 as the first batch of graduate of EFP-accredited program in Asia. In addition, he obtained Fellowship in Periodontology from The College of Dental Surgeons of Hong Kong in 2024. His major research interests are stage IV periodontitis, diet quality, masticatory function and periodontal medicine. He is the co-recipient of the HKU Azalea (1972) Endowment Fund for 11M for the Azalea Gum Treatment Project targeting underprivileged stage IV periodontitis patients.

Professor Andrew Nalley

Title

Imaging Analysis of the Temporomandibular Joint (TMJ) – Anatomy and Complications

Abstract

Temporomandibular joint (TMJ) disorders affect up to 12% of adults and can significantly influence daily function, pain levels, and overall quality of life. Because the TMJ is a uniquely complex articulation essential to oral and facial activity, accurate imaging assessment is critical for diagnosis and management. In this presentation, Professor Andrew Nalley, a board certified oral and maxillofacial radiologist, will provide a focused review of TMJ anatomy as visualized across multiple imaging modalities, including panoramic radiography, computed tomography, cone beam computed tomography, magnetic resonance imaging, and ultrasound. Normal anatomical variations will be illustrated, with particular emphasis on how these variations appear on panoramic and CBCT, and how they should be interpreted in clinical practice. The session will then examine the imaging characteristics of common TMJ pathologies, highlighting Degenerative Joint Disease (DJD) and disc displacement. Practical examples will demonstrate how modality selection influences diagnostic confidence and how imaging findings correlate with clinical symptoms. Attendees will gain a clearer understanding of how to recognize normal versus pathological features and how to integrate imaging into a comprehensive evaluation of TMJ disorders.

Biography

Professor Andrew Nalley is originally from Houston, Texas. He earned his Doctor of Dental Surgery degree from The University of Texas School of Dentistry at Houston in 2012. After dental school, he joined a private practice in general dentistry where he worked from 2012 – 2017. During this time, the office had a Cone Beam CT unit, and he developed a growing interest in the field of radiology. In 2017, he moved to Seattle to complete a residency training program in Oral and Maxillofacial Radiology at University of Washington. After the residency program, he stayed at University of Washington as a Clinical Assistant Professor. In June 2024, he moved to Hong Kong to accept an appointment as an Oral Radiologist at HKU’s Faculty of Dentistry. Professor Nalley is a Diplomate of the American Board of Oral and Maxillofacial Radiology. His research involvement has included imaging findings related to TMD, optical navigation in Ultrasound imaging, and AI applications in Oral Radiology. Outside of work, he enjoys traveling, hiking and photography.

Professor Chun Hung Chu

Biography

Professor Chu is Kingboard Professor in Advanced Dentistry, Chair Professor of Family Dentistry, and Associate Dean (Knowledge Exchange and Development) of HKU Faculty of Dentistry. His leadership extends globally, serving as Chair of the FDI Public Health Committee and Vice President of the Asian-Oceanian Federation of Conservative Dentistry. He has previously held esteemed positions as president of the Asia Academy of Preventive Dentistry, the South East Asia Association for Dental Education, and the Society of Preventive Dentistry of Hong Kong. His professional accolades include fellowship in the Royal Australasian College of Dental Surgeons, the Hong Kong Academy of Medicine, the Royal College of Surgeons of Edinburgh, the Academy of Dental Materials and the International College of Dentists. He is a diplomate of the American Board of General Dentistry and a Master of the Academy of General Dentistry. An educator at heart, he supervises PhD students and postdoctoral fellows. Some of them have ascended to full or associate professors, with some listed among the Top 2% Scientists.

Professor May Wong

Biography

Professor May Wong is a Professor in Dental Public Health at the Faculty of Dentistry, HKU. She is the Director of the Clinical Research Centre at the faculty. She teaches courses on biostatistics and clinical research methods to graduate and undergraduate students. She has contributed to the research community as an editor of the Cochrane Oral Health Group, Associate Editor of Community Dentistry and Oral Epidemiology, and Statistical Consultant for Clinical Oral Implants Research. Her leadership positions within the International Association of Dental, Oral, and Craniofacial Research (IADR) include President of the Southeast Asian Division, Board of Directors of the Asian Pacific Region, and President of the Evidence-based Dentistry Network. Her research focuses on biostatistics, clinical trials, oral epidemiology, oral health promotion, and quality of life. She has published over 130 international peer-reviewed papers. Her research contributions have been acknowledged through awards received at HKU, international conferences and from journals. Professor Wong has received the prestigious 2021 IADR Distinguished Scientist H. Trendley Dean Memorial Award, which recognizes investigators with meritorious research in epidemiology and public health and is considered one of the highest honors bestowed by IADR.

Professor Edward Lo

Biography

Professor Edward C.M. Lo has been the Chair Professor of Dental Public Health in the University of Hong Kong (HKU) since 2013. He obtained BDS (1985), MDS (1987) and PhD (1995) degrees from the HKU, and Fellowship of the Hong Kong Academy of Medicine (FHKAM) in 1993. He is a past President of the Southeast Asian Division and the Asia-Pacific Region of the International Association for Dental Research (IADR), and a past IADR Treasurer (2012-2015). Prof. Lo is the Chairman of the Specialty Board of Community Dentistry and a past President (2012-2014) of the College of Dental Surgeons of Hong Kong. His research area is oral epidemiology, oral healthcare services and preventive dentistry. He has published over 400 journal articles. Prof. Lo was awarded the IADR Distinguished Scientist Award (Geriatric Oral Research) in 2016 and the IADR E.W. Borrow Memorial Award (for research in oral health promotion for children) in 2021.

Professor John Junwen Wang

Biography

Professor Wang is currently a professor in Faculty of Dentistry, the University of Hong Kong (HKU). He was a full Professor of Biomedical Informatics at Mayo Clinic in Arizona, and affiliate Professor at Arizona State University, USA. He obtained his PhD from University of Washington, Masters from University of Pennsylvania, USA and Jiangnan University, and BE from Huazhong Agricultural University, China. Prof. Wang’s research interests are in Bioinformatics, gene regulatory network construction, AI and methodology development for data analysis. He has published over 130 papers in journals such as Nature genetics, Nature Communications, Nature Machine Intelligence, Circulation, NAR, Bioinformatics, and has obtained funding from RGC of Hong Kong, and NIH of USA as project leaders. He was an ISI top 1% cited scholar, an outstanding young researcher awardee at HKU, and is currently an associate editor of Journal of Cancer Immunology, Immunotherapy.

Professor Edmond Ho Nang Pow

Biography

Professor Pow is a tenured Clinical Associate Professor, the Postgraduate Programme Director in Prosthodontics, and the Chief of the Division of Restorative Dental Sciences at the Faculty of Dentistry, The University of Hong Kong. As a registered specialist in Prosthodontics, Prof. Pow has been actively working in various aspects of clinical prosthodontics for over 30 years. His research interests include digital prosthodontics, dental implants and biomaterials. Prof. Pow has published over 110 scientific and clinical articles and he won the Judson C. Hickey Scientific Writing Award of the Journal of Prosthetic Dentistry in 2015. He currently serves on the editorial board of the Clinical Oral Implants Research, Journal of Prosthodontics, International Journal of Prosthodontics and International Dental Journal. Prof. Pow is the Immediate Past President of the Prosthodontics Group and the Chair of the Membership & Recruitment Committee of IADR. He was also the Chair of IADR/AADR William J. Gies Award Committee, President of the Hong Kong Prosthetic Dentistry Society, President of the College of Dental Surgeons of Hong Kong and Chair of the Asia Regional Committee of the Royal Australasian College of Dental Surgeons (RACDS).

Professor Feng Wang

Biography

Professor Feng Wang obtained BDS (2005), MDS (2007), and PhD (2015) degrees from SJTU. She had been involved in dental implant treatment in Ninth People’s Hospital, SJTU from 2007 to 2024. Professor Wang has an ongoing interest in digital implant surgery, implant related oral reconstruction. Her current basic research focuses on the development of congenital tooth loss and implant therapy. She is the Fellow of International Team for Implantology (ITI), Educational Committee Member of Foundation of Oral Rehabilitation (FOR) and Committee Member of Chinese Stomatological Association, implantology branch and oral genetic/rare diseases branch. She has published more than 70 papers in international peer-reviewed journals and now is on the editorial board of CIDRR.

Professor Guang Hong

Title

Digital Transformation in Healthcare and Education Settings

Abstract

Dental education is mainly composed of three parts: lectures, Simulation laboratory courses, and Clinical skill training. Among these, the simulation laboratory course and clinical skill training are important components of acquiring the basic skills needed to become a dentist. Dental students require training for their clinical skill development and need sufficient opportunities for practical application of these skills by attending to the hospital patients. For dental education, because we have recently had a lot of sources that include Zoom meetings, Google classes, and so on, therefore, the lecture part is easy to switch to a digital way. Even the modern digital or VR techniques can be used for simulation laboratory courses; however, current facilities are not good enough, and also the procedure, as well as the final work, needs to be checked step by step by the teachers. In addition, clinical skill training is the most difficult part of dental education to deal with in a digital environment. To fit the future demand, dental education should be prepared in advance to face the future challenge and the digitalization wave. In this lecture, I will outline our efforts toward the future of dental professionalism and humanism through a digital transformation in the healthcare and educational settings.

Biography

Professor Guang Hong, MD., DDS., PhD (Dental Science), is Professor and in charge of international affairs in the Tohoku University Global Strategy Office and is the Professor and Chair of the Division for Globalization Initiative, Director of the office of International Affairs at the Liaison Center for Innovative Dentistry, Graduate School of Dentistry. Currently, Dr. Hong is an Executive board member of the Japanese Society for Dental Materials and Devices, Associate Editor of the Dental Materials Journal and Japanese Dental Science Review, and a council member of South East Asia Association for Dental Education (SEAADE), Secretary-General of Association for Dental Education, Asia Pacific (ADEAP), and Member of International Evaluation Committee, Korean Institute of Dental Education and Evaluation (KIDEE). He is also a Committee Member of the International Standardization Accelerated Project, Japanese Ministry of Economy, Trade and Industry, and an expert on ISO (International Organization for Standardization) and DIN (German Institute for Standardization). His research focuses on elucidating the rheological properties of dental materials, developing the functionality of new dental materials, and creating educational systems. Currently, his research primarily focuses on international standard institutions, the improvement and development of oral care and denture care materials, metal-free dental implant materials, and the advancement of dental materials and education systems through Industry-Academia-Government collaboration.

Professor Hiroshi Egusa

Title

Scientific Publication in Academic Leadership

Abstract

“Are leaders born or made? This is a false dichotomy – leaders are neither born nor made. Leaders choose to be leaders.” – Stephen R. Covey. If you aim to take on a leadership role in academia, the usual path is to enter a tenure-track position and eventually become a professor. But what does it really mean to be a “leader” in academia? At its core, being an academic means having the ability to independently shape and pursue your own path of scholarship or inquiry. A central part of that journey is scientific publication. Ideally, academia is a place where intellectual curiosity drives you to explore new ideas, and those efforts naturally lead to meaningful publications. However, as many of you are well aware, the reality is often captured by the phrase “publish or perish.” In academia, there is constant pressure to keep publishing in order to sustain your position and move your career forward. In this lecture, I will share why it is so important, especially in the early stages of your career, to produce original and high-impact publications. I will also offer practical perspectives on how to approach scientific writing in ways that enhance both originality and impact.

Biography

Professor Hiroshi Egusa received his DDS (1998) and PhD (2002) from Hiroshima University. After working at the University of Hong Kong, he conducted stem cell research at UCLA as a Japanese government-sponsored postdoctoral fellow (2002–2004). He served as an Assistant Professor at Osaka University (2004–2014) before being appointed Full Professor at Tohoku University in 2014, where he established the Division of Molecular and Regenerative Prosthodontics. He currently serves as Vice Hospital Director and Chair of the Division of Prosthodontics and Restorative Dentistry at Tohoku University Hospital. Professor Egusa has received numerous honors, including the IADR Distinguished Scientist Award (2012), as well as first-place awards in the IADR Edward H Hatton Award (2002) and the IADR Arthur Frechette Prosthodontic Research Award (2004). Since 2021, he has been ranked among the world’s Top 2% Scientists by Stanford University/Elsevier. He is a board-certified prosthodontist and has served as Editor-in-Chief of the Journal of Prosthodontic Research since 2021. He is a Fellow of the Royal College of Pathologists (FRCPath) and also serves as an Associate Member of the Science Council of Japan, Vice-President (President-Elect) of the IADR Japanese Division, and Chair of the Local Organizing Committee for the 2029 IADR General Session in Yokohama.

Professor Masahiro Yamada

Title

Titanium nanosurface-mediated physical bioregulation for osseointegration and beyond

Abstract

Recent advances in the engineering of dental implant surfaces have revolutionized their capacity to promote osseointegration. At the core of this biological phenomenon lies a mechanobiological system in which cells sense physicochemical surface cues and transduce them into biochemical signals. Nanotechnology has transformed surface modification strategies, enabling the design of smart implant materials that elicit specific cellular responses. By integrating biomimetic principles, it becomes possible to create multifunctional surfaces capable of orchestrating complex biological regulation across different cell species. We have developed a titanium nanosurface modification technology to control the patterning of nano-sized vertexes. Our studies revealed that titanium nanotopographical features, particularly the horizontal alignment of nano-vertexes, further enhance the inherent physical surface properties of titanium as an osseointegrated implant material. This innovation has yielded notable outcomes, including autonomous enhancement of peri-implant bone quality through osteocyte maturation and mechano-bactericidal effects. These findings highlight the pivotal role of nanoscale surface design in providing instructive physical cues that regulate different cell types. In this symposium, I will present our approach to designing a next-generation “smart” implant nanosurface and invite discussion on the potential of nanosurface modification beyond osseointegration and its contribution to long-term peri-implant health.

Biography

Masahiro Yamada, DDS, PhD, is a Professor in the Division of Mechanobiology and Biomedical-Dental Engineering at the Graduate School of Biomedical Engineering, Tohoku University. He was appointed in April 2025 after serving in the Graduate School of Dentistry. His research integrates nanotechnology, mechanobiology, and regenerative dentistry to develop next-generation implant systems. His laboratory investigates how nanoscale and physicochemical surface properties regulate cellular behavior, linking mechanotransduction mechanisms with translational applications in implantology and tissue engineering. His current research focuses on titanium nanosurface modification, cell–matrix interactions, osseointegration biology, and periodontal tissue regeneration. Prof. Yamada pioneered biomimetic titanium nanosurfaces that elicit cell-type-specific responses, providing strategies that extend beyond conventional concepts of osseointegration. He has authored over 100 peer-reviewed publications (citations >4,000; h-index 34) in leading biomaterials and dental journals. He received his DDS from Hiroshima University, a PhD from Tokyo Medical and Dental University, and completed postdoctoral training at UCLA.

Professor Apichai Yavirach

Title

Next-Generation Dental Implants: Enhancing Osseointegration through 3D-Printed Porous–Threaded Titanium Designs

Abstract

Digital dentistry and additive manufacturing are rapidly transforming modern dental practice and biomedical device development. Among these technologies, three-dimensional (3D) printing has emerged as a powerful approach for fabricating complex structures with precise control over geometry and surface architecture. In dental implantology, additive manufacturing enables the design of innovative implant topography for macro to nanoscales, as well as, the personalized design for each individual which are difficult to achieve using conventional manufacturing techniques. Our research group has developed a novel 3D-printed porous–threaded titanium implant design that integrates a controlled porous architecture with conventional threaded geometry. This hybrid design aims to combine optimal mechanical stability with enhanced biological performance. This talk will present how this novel implant architecture may enhance osseointegration in various aspects through finite element analysis (FEA), mechanical testing, and biological assessments focusing on osteoblast responses. Ultimately, our research group aims to address current limitations in implant therapy by translating this design into personalized implant solutions for patients with low bone density (D3–D4 bone) and medically-compromised conditions, such as uncontrolled diabetes, where successful osseointegration remains challenging.

Biography

Dr. Apichai Yavirach is a prosthodontist, lecturer, and researcher at Faculty of Dentistry, Chiang Mai University, Thailand. He earned his Doctor of Dental Surgery with First Class Honors from Chiang Mai University and later completed a Higher Graduate Diploma in Clinical Sciences in Prosthodontics. He received his Ph.D. in Oral Health Sciences from the University of Washington, USA, where his dissertation focused on the cellular and molecular mechanisms underlying medication-related osteonecrosis of the jaw. Dr. Yavirach is a recipient of the prestigious Fulbright Scholarship, awarded by the U.S. government to support outstanding international scholars, as well as the Magnuson Scholarship from the University of Washington and the Geriatric Sciences for Dental Care Scholarship from the Thai government. His work bridges clinical prosthodontics, dental biomaterials, and translational research, with a particular focus on innovative designs and biomaterial strategies aiming to improve treatment outcomes for medically-compromised patients. He has secured multiple competitive research grants, including 2026 Strategic Fund from National Research Council of Thailand (NRCT). In his free time, Dr. Yavirach enjoys running, swimming, hiking, and trying new craft beer around the world.

Professor Ramadhan Hardani Putra

Title

Advancing Panoramic Radiography with AI: From Diagnostic Support to Oral Health Surveillance

Abstract

Artificial intelligence (AI), particularly deep learning, is changing how we look at panoramic radiographs. This lecture highlights how deep learning can move panoramic radiography from diagnostic support toward a more comprehensive role in oral health monitoring. Rather than serving only as a diagnostic image, panoramic radiography has the potential to become a powerful source of quantitative oral health information. This lecture will present current evidences as well as our research experience in developing deep learning models to automatically detect various dental conditions on panoramic radiographs. These AI systems are designed to support clinicians by providing faster and more accurate dental disease detection, especially subtle or less visible conditions on panoramic radiographs. Beyond disease detection, we also explore how automated detection can be translated into measurable indicators, such as estimating the DMF-T index, opening the possibility of using panoramic radiographs as a tool for oral health surveillance at a broader population level. This lecture will also discuss current limitations as well as future directions for improving model robustness and clinical integration.

Biography

Ramadhan Hardani Putra is currently an Associate Professor in the Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga. He is also serves as an Honorary Assistant Professor at the Faculty of Dentistry, The University of Hongkong (2025 – 2027). He received his Ph.D. degree in Dental Science from the Graduate School of Dentistry, Tohoku University, Japan, in 2021. In 2025, he completed his Specialist degree in Dentomaxillofacial Radiology at Universitas Airlangga. His research interest focuses on digital imaging science in dentistry, including artificial intelligence in dental radiography, dental implants, and digital dentistry. His work aims to enhance diagnostic accuracy and clinical decision-making through the integration of emerging imaging technologies and AI-driven analysis.

Professor Pimduen Rungsiyakull

Biography

Assoc. Prof. Dr. Pimduen Rungsiyakull is a prosthodontist and researcher at the Faculty of Dentistry, Chiang Mai University, Thailand. She received her DDS (honours) from Chiang Mai University and was awarded a Royal Thai Government Scholarship to pursue postgraduate studies abroad. She completed her Master of Dental Sciences in Prosthodontics and PhD in Biomaterials at the University of Sydney, Australia. She is also a Fellow of the Royal College of Dental Surgeons of Thailand (FRCDS) in Prosthodontics. Her research focuses on prosthodontics, dental biomaterials, and computational biomechanics, with particular expertise in finite element analysis, bone remodeling simulation, and optimization-based prosthetic design. Her work integrates engineering principles, digital technologies, and clinical prosthodontics to improve treatment outcomes and develop innovative prosthetic solutions. She is currently the principal investigator of a National Research Council of Thailand (NRCT) funded project on next-generation porous dental implants designed for patients with compromised bone conditions. Her research emphasizes translational approaches that bridge biomechanical modeling with clinical applications. Dr. Rungsiyakull serves on the Editorial Board of the Journal of Prosthodontic Research and Scientific Reports, and has authored numerous publications in leading international journals.