3D-printed model may expand splinting training: full analysis

A new preclinical study highlights a simple idea with broader training implications: use a cheap, reproducible 3D-printed model with mobile anterior teeth to teach periodontal splinting before students ever treat a live patient. The study, currently posted as a Research Square preprint and listed by Sciety, enrolled 43 fourth-year dental students in a randomized cross-over course and found that the model was viewed as clinically relevant, improved self-efficacy, and produced similar accuracy regardless of whether students used polyethylene ribbon or a pre-impregnated glass-fiber splinting material. (doi.org)

The backdrop is familiar across both human and veterinary oral care: simulation matters, especially for procedures that are technique-sensitive and hard to practice repeatedly in real cases. In the paper’s introduction, the authors note that 3D-printed teaching models have become more common across prosthodontics, endodontics, orthodontics, and oral surgery, while periodontal practical training has remained relatively underdeveloped. That gap is notable because periodontal splinting is used to distribute forces across mobile teeth, and contemporary chairside approaches often rely on fiber-reinforced composite systems that can be effective but are sensitive to handling. (doi.org)

In the study, students completed two splints in randomized order over two weeks, using either Ribbond Ultra or everStickPERIO. The printed teeth were designed to fit a standard KaVo dental study model, and the workflow included repositioning the teeth, preparing a palatal channel, etching, bonding, embedding the splint material, and covering it with flowable composite. Outcomes included student questionnaires and 3D scan-based geometric analysis. Students rated the overall course “good,” and rated its practical relevance especially highly. Self-efficacy improved from a pre-course rating equivalent to “poor” to a post-course rating of “good.” Median deviation from the ideal tooth position ranged from 0.34 mm to 0.68 mm, and statistical testing found no significant differences between the two materials or between first and second attempts. (doi.org)

The material comparison is useful, even if the result was mostly a tie. Ribbond Ultra was rated slightly better for handling than everStickPERIO, but the difference was not statistically significant. In free-text responses, some students preferred the thinner, more adaptable ribbon, while others favored the handling and stability of the glass-fiber bundle. The authors concluded that in novice hands, success may depend less on the specific splinting system and more on fundamentals such as repositioning, moisture control, and composite coverage. (doi.org)

Outside this study, the broader literature supports the direction of travel. Reviews and reports in dentistry describe 3D printing as increasingly common for educational models, diagnostic models, splints, and workflow guides. A 2024 Operative Dentistry paper, for example, described a digital workflow using a 3D-printed guide for tooth splinting, while other publications have described 3D-printed periodontal education models and broader growth in printed dental devices and teaching tools. Taken together, that suggests this study is less a one-off novelty than part of a larger shift toward digital, reproducible training infrastructure. (pubmed.ncbi.nlm.nih.gov)

Why it matters: For veterinary professionals, this isn’t a practice-changing clinical paper, but it is a meaningful signal about training design. Veterinary dentistry faces many of the same educational constraints seen in human dentistry: limited case exposure, the need to build procedural confidence before live-animal treatment, and the challenge of teaching fine motor steps consistently across learners. A model that is cheap, repeatable, and customizable could be useful not only for periodontal stabilization concepts, but also for extractions, restorations, endodontic access, fracture repair planning, or client communication. That last point matters because pet parents increasingly expect advanced dental care, while clinics and training programs need ways to standardize teaching without increasing patient risk. This is an inference based on the study’s educational findings and the broader 3D-printing literature, rather than something directly tested in veterinary patients. (doi.org)

There are important caveats. The paper is a preprint, not yet peer reviewed. It involved human dental students, not veterinary trainees, and focused on learner perception and geometric accuracy rather than long-term clinical outcomes. The cohort was modest, no formal power calculation was performed, and the authors themselves say future work should include larger groups, additional 3D metrics, and comparisons of assisted versus unassisted workflows. (doi.org)

What to watch: The next signals will be whether the study reaches peer-reviewed publication, whether other groups replicate the model, and whether educators adapt the concept to species-specific veterinary oral anatomy, where the real opportunity may be not just lower-cost teaching, but more consistent preparation before live-animal procedures. (doi.org)