Protective potential of different mouthguard thicknesses against perianaesthetic dental trauma: a patient specific-finite element study

Suat Serhan Altıntepe Doğan, Özgür Doğan, Özge Doğan and Nihan Altıntepe Başkurt

Computer Methods in Biomechanics and Biomedical Engineering, 2024, vol. 27, issue 10, 1346-1356

Abstract: Perianaesthetic dental trauma is a common anaesthesia-related complication. Theprevious studies have shown a lack of knowledge regarding mouthguard usage and controversial results related to perianaesthetic dental trauma prevention. This study aimed to conduct a finite element analysis of the compressive and tensile stresses on the tooth-periodontal ligament-bone complex using custom-made mouthguards of different thicknesses and glass fibre splints to prevent perianaesthetic dental trauma. Custom-fitted ethylene-vinyl acetate mouthguards of two different thicknesses (2 and 3 mm) and glass fibre splint were modelled. A linear static finite element analysis was performed by applying a rigid Macintosh laryngoscope to the palatal surface of the maxillary central incisors at 150 N. The model without a mouthguard and glass fibre splint showed the highest stress values at the palatinal root surfaces during the impact. Increasing the mouthguard thickness significantly decreased the stress-strain values regardless of the presence of the glass fibre splint. Maximum stresses in the group using the 3 mm mouthguard were the lowest compared with the other groups.

Date: 2024
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DOI: 10.1080/10255842.2023.2247515

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