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. 2024 Aug;40(4):453-459.
doi: 10.1111/edt.12941. Epub 2024 Mar 8.

Enhancing mouthguard longevity: Impact of surface treatment against aging from brushing and disinfectant exposure

Larissa Haddad E Borro  1 , Talita Suelen de Queiroz  1 , Beatriz Serralheiro da Cruz  1 , Amir Mohidin Demachkia  1 , Alexandre Luiz Souto Borges  1 , João Paulo Mendes Tribst  2 , Tarcisio Jose de Arruda Paes Junior  1
Affiliations

Enhancing mouthguard longevity: Impact of surface treatment against aging from brushing and disinfectant exposure

Larissa Haddad E Borro et al. Dent Traumatol. 2024 Aug.

Abstract

Background/aims: The study aimed to assess the surface characteristics of sports mouthguards under mechanical stresses during cleaning, either by brushing or immersion in disinfectant solutions.

Material and methods: Ethylene-vinyl acetate samples, 4 mm thick, were randomly assigned to cleaning methods: control (C-no cleaning), brushing with water (B.W), brushing with neutral liquid soap (B.S), brushing with toothpaste (B.T), immersion in distilled water for 10 min (I.W), immersion in 2.25% sodium hypochlorite solution for 10 min (I.SH), and immersion in sodium bicarbonate solution for 5 min (I.SB). All cleaning methods were applied for 28 days. Surface roughness average (Ra) and wettability were measured at baseline for the control group (n = 9), and after cleaning for all the other groups.

Results: One-way ANOVA with Tukey tests (5% significance) indicated significant differences among groups (p < .05). The I.SB group had higher surface roughness than B.S and B.T (p < .05). B.W showed the lowest wettability, significantly lower than B.T, I.W, and I.SB (p < .05). I.SB exhibited the highest wettability, significantly different from sodium hypochlorite, neutral liquid soap, brushing with water, and control groups (p < .05). The sodium bicarbonate immersion group (I.SB) demonstrated greater statistical variation, displaying higher susceptibility to aging compared to brushing with neutral liquid soap.

Conclusion: Cleaning mouthguards with a toothbrush, water, and neutral liquid soap emerged as the most promising method, causing minimal surface changes in the material.

Keywords: aging; cleaning; ethylene vinyl acetate; mouthguards.

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References

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