ArticleDental traumatology : official publication of International Association for Dental Traumatology2025
Impact Absorption Power of Polyolefin Fused Filament Fabrication 3D-Printed Sports Mouthguards: In Vitro Study.
Article in Dental traumatology : official publication of International Association for Dental Traumatology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed.
- Comparison of Shock Absorption Capacities of 3D-Printed Custom-Made Mouthguards: A Comparative In Vitro Study.Dental traumatology : official publication of International Association for Dental Traumatology · 2026Article
- Optimization of 3D Printing Parameters for the Production of Mouthguards.Dental traumatology : official publication of International Association for Dental Traumatology · 2026Article
- New Frontiers in Dental Traumatology: Innovation, Prevention, and Clinical Practice.Dental traumatology : official publication of International Association for Dental Traumatology · 2026Article
- Biomechanical Analysis of 3D Printed and Thermoformed EVA Custom-Made Mouthguard: Experimental and Finite Element Analyses.Dental traumatology : official publication of International Association for Dental Traumatology · 2026Article
- Physico-Mechanical Properties of 3D-Printed Filament Materials for Mouthguard Manufacturing.Polymers · 2025Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
BACKGROUND/
aimThis study aims to evaluate and compare the impact absorption capacities of thermoformed ethylene vinyl acetate (EVA) mouthguards and 3D-printed polyolefin mouthguards used in sports dentistry applications. The objective is to determine whether 3D-printed polyolefin mouthguards offer superior impact toughness compared to traditional EVA mouthguards commonly used in sports settings. MATERIALS AND
methodsSix material samples were assessed: five pressure-formed EVA mouthguards (PolyShok, Buffalo Dental, Erkoflex, Proform, and Drufosoft) and one 3D-printed synthetic polymer (polyolefin). The materials were evaluated using a modified American Society for Testing and Materials (ASTM) D256 Test Method A for Izod pendulum impact resistance of plastics. Polyolefin samples were 3D-printed using fused filament fabrication (FFF) technology. Notably, the FFF process included samples printed with notches placed either parallel or perpendicular to the build direction. This orientation served as a study factor, allowing for comparison of material behavior under different printing conditions. Impact testing was conducted using an Izod impact tester to assess the materials' performance under controlled impact conditions.
resultsThe study achieved a high power (1.0) in power analysis, indicating strong sensitivity to detect significant differences. Among molded materials, PolyShok showed significantly lower impact toughness compared to others (p = 0.06). The mean impact absorption of EVA materials was 5.4 ± 0.3 kJ/m
conclusions3D-printed polyolefin mouthguards exhibited significantly higher impact toughness than thermoformed EVA mouthguards. While EVA materials demonstrated structural robustness, their lower impact resistance and observed tearing in other test specimens suggest the need for alternative testing standards to better reflect real-world conditions. 3D-printed mouthguards fabricated with build orientations perpendicular to the direction of impact demonstrate significantly enhanced impact absorption. Further research into manufacturing methods and testing protocols is recommended to optimize mouthguard performance under impact scenarios.
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Registered trials
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