The agreement was signed by Professor Lijian Jin, Dean of the HKU Faculty of Dentistry, and Mr Patrick Loh, Executive Vice President and Head of Asia Pacific at Straumann Group. Under its terms, Straumann will sponsor a comprehensive portfolio of implant solutions and biomaterials for use in the clinic’s teaching and patient services. The sponsorship covers up to 900 units of each specified product category over the coming five years, a scale of provision that gives the faculty a predictable supply of the devices and materials on which modern implant dentistry depends.

The practical beneficiaries of the arrangement are students enrolled in four of the faculty’s Master programmes: Periodontology, Implant Dentistry, Oral and Maxillofacial Surgery, and Prosthodontics. These programmes combine academic coursework with supervised clinical practice, and their graduates are expected to take up specialist roles across Hong Kong and the wider region. With sponsored materials in hand, students will be able to provide implant treatments for patients who attend the multi-specialty clinic, turning what would otherwise be costly private procedures into supervised training cases that also serve community need.

Dental implant treatment is among the most technically demanding areas of restorative dentistry. It involves the surgical placement of titanium or ceramic fixtures into the jawbone, followed by a healing period during which the fixture integrates with bone, and finally the attachment of crowns, bridges or dentures that restore function and appearance. Each stage requires careful diagnosis, imaging, surgical precision and prosthetic planning. Because complications can be significant, training bodies worldwide emphasise that dentists should gain substantial supervised experience before practising implant procedures independently, which is precisely the gap that clinic-based postgraduate programmes are designed to fill.

According to the faculty, the collaboration will enhance clinical training by enabling Master students to manage more advanced implant cases than would otherwise be feasible. Case complexity matters in specialist education: straightforward single-tooth replacements teach fundamentals, but managing patients with limited bone volume, multiple missing teeth or complex medical histories builds the judgement required of a qualified specialist. By widening the range and number of cases students can treat, the partnership is intended to strengthen professional knowledge and clinical skills and to help cultivate more highly qualified specialist dentists for the community.

The second pillar of the agreement concerns affordability and access. The faculty states that the collaboration will allow IAD-MSC to optimise its operational costs, since donated implants and biomaterials reduce the input costs of each treatment. Those savings can be passed on to patients in the form of more affordable advanced dental care. Implant treatment is typically expensive, and cost is a well-recognised barrier that prevents many people from replacing missing teeth, with consequences ranging from impaired chewing and nutrition to reduced confidence and social participation. Lowering the price of supervised implant care therefore has implications that extend beyond the dental chair.

The Institute for Advanced Dentistry – Multi-Specialty Clinic itself represents a particular model of dental education, one in which teaching, research and patient service are integrated within a single facility. Postgraduate students treat real patients under the oversight of experienced specialists, patients receive care at reduced cost, and the faculty generates the clinical volume needed to sustain high-quality training and research. Partnerships with industry fit naturally into this model, because manufacturers supply the materials and technologies that define contemporary practice, and students benefit from training on the same systems they will encounter after graduation.

Professor Jin expressed his gratitude for Straumann’s support and said the collaboration reflects the shared commitment of HKU and Straumann to advancing dental education and community service. His remarks frame the agreement as more than a supply arrangement, positioning it as a mutual investment in the region’s oral health workforce. For Straumann, a group with a substantial Asia Pacific presence, supporting a top-ranked dental faculty offers a route to engagement with the clinicians who will shape implant practice in the decades ahead. For the university, the sponsorship addresses a persistent tension in specialist training: the cost of the materials students need to learn with.

Professor George Pelekos, Programme Director of the Master of Science in Implant Dentistry programme, expanded on the educational vision behind the partnership. He said the mission is to set a new standard of clinical training in implant dentistry while expanding treatment opportunities for patients. In this way, he noted, the faculty is not only nurturing the next generation of dental professionals but also delivering tangible benefits to society, which he described as a clear demonstration of HKU’s commitment to academic excellence and social impact. The statement underscores how specialist training programmes increasingly measure their value by community outcomes as well as examination results.

The five-year horizon of the sponsorship gives both parties time to embed the arrangement into curriculum planning and clinic operations rather than treating it as a one-off donation. If the model performs as intended, its significance may reach beyond Hong Kong. Dental schools worldwide face similar pressures: rising demand for implant and restorative care as populations age and retain more of their natural teeth into later life, high material costs that constrain training capacity, and patients who cannot afford specialist treatment. An agreement that simultaneously increases the number of advanced cases students can manage and lowers the price of care for the public offers a template worth watching, and the faculty suggests it will help improve the oral health and quality of life of members of the public while contributing to the overall well-being of the Hong Kong community.

Subject of Research: A university-industry partnership supporting implant dentistry clinical training and affordable community dental care in Hong Kong

Article Title: HKU Faculty of Dentistry and Straumann forge strategic partnership to enhance clinical training and accessibility to community dental care

Article References: HKU Faculty of Dentistry and Straumann forge strategic partnership to enhance clinical training and accessibility to community dental care. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: HKU Faculty of Dentistry, Straumann, implant dentistry, dental education, clinical training, IAD-MSC, postgraduate programmes, oral healthcare access, Hong Kong, biomaterials, periodontology, prosthodontics

The study, conducted by Hanife Merva Parlak of the Department of Periodontology at Hacettepe University’s Faculty of Dentistry in Ankara, set out to answer a deceptively simple question: do question type and topic affect how well large language models answer periodontology questions? This matters because the debate over artificial intelligence in health science education has largely focused on accuracy scores, with less attention paid to the explanatory quality that determines whether a chatbot can actually teach rather than merely answer. A model that picks the correct option but offers a vague, inconsistent, or misleading rationale may be worse for learning than one that occasionally errs but explains itself clearly.

To investigate, Parlak assembled 134 multiple-choice questions drawn from the Dental Specialization Examination administered in Türkiye, the high-stakes test that dentists must pass to enter specialty training. The questions were fed to three widely used consumer-facing artificial intelligence systems: ChatGPT-5, Gemini 2.5 Flash, and Copilot. Each model’s responses were then assessed on two separate dimensions. The first was straightforward accuracy — did the model select the correct answer? The second was more nuanced: the quality and adequacy of the explanation accompanying each answer, judged on a Likert scale, a standard survey instrument that rates responses along a graded spectrum of quality.

The questions themselves were not uniform. As described in the study’s supplementary materials, they spanned different cognitive levels, following the classic taxonomy of educational objectives. Standard questions tested basic recall — the remembering level — such as memorized facts about periodontal disease classification. Information-based questions probed understanding, requiring the model to interpret and apply knowledge in a slightly transformed context. Case-based questions, the most demanding category, simulated clinical scenarios at the applying level, asking models to reason through patient presentations the way a periodontist would. The question pool also covered both basic science content and clinical periodontology, allowing the researcher to disentangle whether models perform differently on foundational biology versus applied clinical reasoning.

The headline finding on accuracy was, in a sense, a non-finding: the total accuracy rates of ChatGPT-5, Gemini 2.5 Flash, and Copilot were statistically similar. All three models have absorbed vast corpora of biomedical text, and by now the ability of frontier chatbots to answer multiple-choice dental questions at or near specialist level has been demonstrated repeatedly across medical specialties. What distinguished the models was something subtler. Gemini 2.5 Flash outperformed its rivals in the adequacy of its response explanations, a difference that reached statistical significance. In other words, when it came to articulating why an answer was correct, Gemini’s outputs were judged more complete and more useful than those of ChatGPT-5 or Copilot.

The pattern deepened when the analysis turned to question categories. Gemini provided more consistent explanations than the other models on basic science questions and on clinical periodontology questions alike, and it maintained that consistency across standardized and information-based question formats. Each of these differences was statistically significant. This suggests that Gemini’s advantage was not confined to one corner of the syllabus but reflected a more general capacity to produce coherent, pedagogically sound rationales across the breadth of periodontology content tested.

To move beyond simple group comparisons, the study employed regression analyses, statistical techniques that estimate how much each predictor variable contributes to an outcome while accounting for the others. The results were telling: question type and topic were both significantly related to explanation quality. Accuracy, by contrast, appeared comparatively robust to these factors. The models generally knew the right answer regardless of whether a question tested recall or clinical application, or whether it concerned the microbiology of periodontal pockets or the surgical management of mucogingival defects. But the clarity, depth, and consistency of the reasoning they offered in support of those answers fluctuated considerably depending on what was being asked and how.

This dissociation between accuracy and explanation quality carries real implications for how artificial intelligence should be integrated into health professional education. Multiple-choice examinations, including the specialty exams used to license and certify clinicians, reward the selection of a correct option. A student using a chatbot as a study aid, however, typically learns from the explanation, not the letter of the answer. If a model’s rationale is thin, inconsistent, or subtly wrong even when its final choice is right, the student may internalize flawed mental models that surface later at the chairside. Conversely, an explanation of high quality can transform a simple quiz question into a miniature tutorial, connecting the answer to underlying mechanisms, differential diagnoses, and treatment principles.

The findings also speak to the technical character of large language models. These systems generate answers by predicting likely text sequences based on patterns learned during training, rather than by consulting a verified knowledge base. Their factual accuracy on well-represented exam content can be excellent, because such content appears abundantly in textbooks, review articles, and question banks. Explanation quality, however, depends on the model’s ability to organize and verbalize reasoning in a way that is both correct and appropriately calibrated to the question’s cognitive demand — a harder task that varies more with the structure of the prompt. Case-based questions, which require integrating scattered clinical clues, appear to stress this capacity in ways that simple factual recall does not, and the regression results indicate that this stress shows up in explanation quality even when the final answer survives intact.

Parlak’s conclusion is measured. Large language models, the study finds, are promising tools for periodontology education, but they retain limitations that require improvement before they can be relied upon uncritically. The author also cautions that the findings should be interpreted within the constraints of the study design: the questions came from a single national specialty examination, were posed in Turkish, and the evaluation of explanation quality, though systematic, ultimately rests on structured human judgment rather than an objective gold standard. Consumer chatbot interfaces also evolve rapidly, meaning that any snapshot comparison reflects a particular moment in a fast-moving technological race. Still, the central message is likely to resonate well beyond periodontology. As educators worldwide weigh whether to embrace, restrict, or redesign assessment in the age of generative artificial intelligence, this study suggests the right question is not simply whether chatbots get the answer right, but whether they can explain it in a way that actually teaches. On that measure, the models are not yet interchangeable — and the format of the question matters more than anyone might have guessed.

Subject of Research: Comparative performance of large language models in answering periodontology multiple-choice questions

Article Title: Do question type and topic affect the performance of large language models in answering periodontology questions? A comparative study

Article References: Parlak, H. M. (2026). Do question type and topic affect the performance of large language models in answering periodontology questions? A comparative study. BMC Medical Education. https://doi.org/10.1186/s12909-026-10516-z

Image Credits: AI Generated

DOI: 10.1186/s12909-026-10516-z

Keywords: large language models, artificial intelligence, periodontology, dental education, ChatGPT-5, Gemini 2.5 Flash, Copilot, multiple-choice questions, medical education, explanation quality, question type, regression analysis