Aims and background: Conventional mouthguards, due to their increased thickness, are uncomfortable for the players. To increase the acceptability of mouthguards among players, this led to the development of a mouthguard that is 4 mm thick anteriorly and 2 mm thick posteriorly. In order to recommend this modified mouthguard to players, we need to find out its stress distribution pattern. For this, finite element analysis can be done in vitro. To evaluate and compare the stress distribution pattern of the modified and conventional mouthguards when exposed to a standardized force of 614 N horizontally on the maxillary jaw using finite element analysis. Materials and methods: Modified and conventional mouthguard models were created after obtaining a cone-beam computed tomography (CBCT) scan of a 14-year-old child. Standardized forces were applied to 4 points (nodes) of the maxillary jaw. Results: The modified mouthguard showed minimum stress distribution in the left premolar region (1.83 MPa), whereas maximum stress distribution was observed in the maxillary left lateral incisor region (24.04 MPa). The conventional and modified mouthguards showed a displacement of 0.00624 mm and 0.000441 mm in the left premolar region, respectively. Conclusion: The modified mouthguard not only showed lower stress distribution but also exhibited minimum displacement compared to the conventional mouthguard when exposed to a standardized force of 614 N. Clinical significance: By reducing the thickness of the mouthguard, we can increase the acceptability of mouthguards among skating athletes.