Comparison of Effectiveness of 2 mm Thick Mouthguard on Primary Central Incisor with and without Strip Crown Restoration: A Three-dimensional Finite Element Analysis.

Aim: The aim of this study was to evaluate the effect of impact stress on a primary central incisor with and without a strip crown and mouthguard using finite element analysis (FEA).

Methodology: Four three-dimensional (3D) FEA models of a normal primary central incisor and strip crown with and without a 2 mm ethylene vinyl acetate (EVA) mouthguard were obtained from a cone-beam computed tomography (CBCT) scan of a 3-year-old child. Boundary conditions were defined. Impact analysis was carried out in Ansys Inc. software.

Results: Results were obtained through von Mises analysis. Such analyses involve the process of color mapping to determine the distribution of stress. Normal primary maxillary central incisors without mouthguards and primary central incisors with strip crowns reported higher stresses compared to models with mouthguards.

Conclusion: A 2 mm custom-fitted EVA mouthguard was effective in mitigating impact stress in the dentition of 3-5-year-old children. Therefore, the use of mouthguards should be encouraged in clinical practice, even for small children.

How To Cite This Article: Mridul M, Chaudhary K, Khanduri N, . Comparison of Effectiveness of 2 mm Thick Mouthguard on Primary Central Incisor with and without Strip Crown Restoration: A Three-dimensional Finite Element Analysis. Int J Clin Pediatr Dent 2025;18(4):363-367.