ArticleDental traumatology : official publication of International Association for Dental Traumatology2025
Reinforcement Positioning in Custom-Made Mouthguards for Maxillofacial Trauma Protection: A Combined In Vitro and In Silico Analyses.
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 1 paper.
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Who cites it
1 citing paper in PubMed.
- New Frontiers in Dental Traumatology: Innovation, Prevention, and Clinical Practice.Dental traumatology : official publication of International Association for Dental Traumatology · 2026Article
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Authors and funding
6 authors.
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Abstract
BACKGROUND/
aimThis study evaluated the dentoalveolar responses of central incisors to anterior maxillary trauma in vitro and in silico using mouthguards (MGs) reinforced with polyamide mesh at three distinct positions. MATERIAL AND
methodsForty 4-mm thick MGs were categorized based on mesh location: Group MG1 + 3 (reinforcement 1 mm from the vestibular limit), Group MG2 + 2 (2 mm), Group MG3 + 1 (3 mm), and a control group without reinforcement. A 3D-printed skull model (Spin Red Resin, Quanton 3D) simulated the dentoalveolar complex, with Resilab Clear resin (Wilcos) for teeth and addition-cured silicone for the periodontal ligament. This setup was connected to a custom impact device to ensure forces remained within the materials' elastic limits. Microstrains were measured using four strain gauges placed on the vestibular surfaces of the central incisors and the alveolar process of the maxilla. The impact was applied at Ep = 0.5496 J, parallel to the ground, using a 35-mm diameter steel sphere. For the in silico test, the setup was modeled in CAD software (Rhinoceros 7.0) and analyzed in CAE software (Ansys 2021 R1) through explicit dynamic simulation. All materials were assumed homogeneous, isotropic and linearly elastic. A 1 m/s impact was simulated using a 7.8 g/cm
resultsThe maximum principal strains and stresses in teeth and maxilla were presented through colorimetric graphs. Statistical analysis (Shapiro-Wilk, Kruskal-Wallis, and Dunn's tests, 5% significance) revealed significant differences for the non-reinforced group (p = 6.8 × 10
conclusionsReinforcement systems significantly improved impact absorption in oral tissues, enhancing protection. However, the reinforcement location did not significantly affect absorption. Finite element analysis validated the in vitro results supporting both theoretical and practical models for further study and future improvements.
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