Modern diagnostics of peri-implantitis is not only about collecting individual parameters, but about interpreting them responsibly. Bleeding on probing, pocket depth, radiological findings, soft tissue condition, history of periodontitis, systemic diseases and potential inflammatory markers should be understood as elements of one clinical puzzle. The PERI-EDU project shows that academic education should prepare students not only to recognize peri-implantitis, but also to use data critically — from classical clinical parameters to new immune-inflammatory indices.
One of the most important tasks of modern dental education is to teach students that clinical data do not speak for themselves. Every parameter requires context. Probing depth, bleeding on probing, radiological bone loss or suppuration become meaningful only when interpreted together with the patient’s history, local conditions, prosthetic design and systemic factors.
In peri-implantitis, this is particularly important because the disease may have different dynamics. In some patients, symptoms develop slowly and the process can be relatively well controlled. In others, bone loss progresses faster despite seemingly similar local conditions. Therefore, students should learn not only which parameters should be collected, but also how to connect them and what clinical questions arise from them.
Local assessment remains the basis of diagnostics. Probing, BoP, PD, evaluation of soft tissues, suppuration, implant mobility in advanced situations and radiological assessment of bone loss are essential. Responsible diagnosis of peri-implantitis is not possible without clinical examination and imaging. At the same time, PERI-EDU shows that contemporary education should not stop at describing changes around the implant. It should lead to the question of why the disease has followed this particular course in this particular patient.
This is where biological and systemic data become relevant. If peri-implantitis develops at the intersection of biofilm, host response, chronic diseases, metabolism and local implant-related factors, future diagnostics may require a broader view. Blood tests, classical inflammatory markers and aggregated indices do not replace clinical examination, but they may become part of education as potential tools supporting risk assessment and understanding of the patient’s response.
Students should therefore understand the difference between a single marker and a composite index. CRP, leukocyte count, IL-6, TNF-α or IL-1β may provide information about inflammatory activity, but they are nonspecific. They do not automatically indicate that the implant is the source of the problem. They may change in infections, chronic diseases, inflammatory stress, pharmacotherapy or metabolic disorders. Education should clearly show that a single laboratory result cannot be treated as a diagnosis.
Aggregated inflammatory indices, such as NLR, PLR, MLR, SII, SIRI or AISI/PIV, are interesting because they attempt to synthetically describe relationships between different elements of the immune response. Instead of looking at one parameter, they analyze the relationship between neutrophils, lymphocytes, monocytes and platelets. As a result, they may better reflect the systemic immune-inflammatory balance than a single marker.
This approach has significant educational value. It teaches students that medicine increasingly relies on the interpretation of patterns, not single numbers. A composite index is not a magical answer, but an attempt to organize more complex biological information. In peri-implantitis, it may help ask whether a patient with rapid disease progression also has a more pronounced or different inflammatory response profile.
At the same time, this is exactly where critical thinking is needed most. Inflammatory indices are promising, but they have limitations. They are nonspecific, influenced by many factors and do not yet have established diagnostic cut-off values specific to peri-implantitis. Students should learn from the beginning that a new index is not automatically a new clinical standard. Between an interesting research hypothesis and a tool ready for routine practice, there is a long path of validation, standardization and assessment of clinical usefulness.
The SIMREX concept developed within PERI-EDU is a good example of this approach. SIMREX can be presented to students as a project-based immune-inflammatory response index specific to peri-implant tissue inflammation. Its educational importance does not lie in being a ready diagnostic test, but in showing a direction of thinking: an attempt to better capture the systemic inflammatory background of patients with peri-implantitis.
Teaching should therefore clearly distinguish between three levels: clinically confirmed knowledge, supportive tools that require context, and research concepts that still need confirmation. This distinction is crucial for future clinicians. It protects them from overinterpreting results while at the same time allowing them to remain open to new diagnostic directions.
PERI-EDU can play an important role in this area. The project shows that translating research into education is not only about adding new terms to the curriculum. It is about teaching how to use scientific knowledge responsibly. Students should know not only what SII, NLR or SIMREX are, but also when such information may be useful, what cannot be concluded from it, and why it must always be interpreted together with the full clinical picture of the patient.
In academic practice, this means working with cases in which students receive different types of data: clinical, radiological, laboratory and general medical. The task should not only be to indicate a diagnosis, but to build an interpretation. What follows from BoP and PD? Does bone loss correspond to the clinical picture? What is the significance of diabetes or a history of periodontitis? Could elevated inflammatory markers be related to the implant, or do they require broader medical assessment? Which data are certain, and which remain hypothetical?
This model of teaching develops competencies that will become increasingly important in data-based medicine. Future clinicians will not work only with simple schemes. They will interpret information from different sources and assess its reliability. In peri-implantitis, this skill is particularly necessary because the disease develops in a complex biological and clinical environment.
Modern diagnostics should not be understood as replacing clinical experience with new indices. Rather, it should support more informed decision-making. Laboratory data may broaden the perspective, but they should not overshadow the patient. Value emerges only from integration: local signs, bone imaging, treatment history, systemic diseases, patient behavior and potential markers of inflammatory response.
This is why the third element of the academic PERI-EDU section should concern not only diagnostics, but also critical interpretation. Students and academic teachers need a language that allows new indices to be discussed without exaggeration and without oversimplification. This is particularly important in a rapidly developing research area, where it is easy to confuse a promising direction with a ready solution.
Peri-implantitis can be a very good model for this type of teaching. It shows that data are valuable only when they are understood. It teaches that a single result does not replace thinking. And it shows that the future of diagnostics may not lie in choosing between clinical assessment and biology, but in responsibly combining both perspectives.
Educational recommendations
- Teach students to interpret data in context, rather than mechanically reading individual clinical or laboratory parameters.
- Emphasize that peri-implantitis diagnostics remains primarily clinical and radiological, while inflammatory markers and indices may only play a complementary role.
- Explain the difference between single markers and aggregated indices, showing their potential, limitations and dependence on the patient’s systemic condition.
- Present SIMREX as a research concept, not a ready clinical tool, in order to teach students the difference between hypothesis, validation and practice.
- Develop critical diagnostic thinking, in which clinical, radiological, laboratory and general medical data are combined into one responsible interpretation of the patient.