Thickness change and deformation of custom-made mouthguards after two years of use by Bangladeshi field hockey players
| Autor: | Nafees Uddin Chowdhury, Yukako Toyoshima, Hiroshi Churei, Ruman Uddin Chowdhury, Sharika Shahrin, Kaito Togawa, Yuriko Yoshida, Gen Tanabe, Toshiaki Ueno, Kairi Hayashi, Ishan Pradhan, Abhishekhi Shrestha |
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| Rok vydání: | 2021 |
| Předmět: |
Orthodontics
Field hockey business.product_category Vacuum 030229 sport sciences 030206 dentistry Equipment Design Deformation (meteorology) 03 medical and health sciences 0302 clinical medicine Hockey Humans Mouth Protectors Mouthguard Oral Surgery Sports activity business human activities Mathematics |
| Zdroj: | Dental traumatology : official publication of International Association for Dental TraumatologyREFERENCES. 37(4) |
| ISSN: | 1600-9657 |
| Popis: | Background/aim Sports mouthguards are effective devices that prevent dental trauma in sports activities. Players should change mouthguards on a regular basis because of thickness reduction and shape deformation. However, there is no guidance regarding the best timing to change mouthguards. The aims of this study were to analyze the thickness change and deformation of mouthguards after 2 years of use in Bangladesh field hockey players and to consider appropriate evaluation criteria. Material and methods Fifty-seven field hockey players belonging to the Bangladesh Sports Education Institute participated in this study. Participants were provided with double-layered mouthguards made of polyolefin-based material using a vacuum-forming machine. Mouthguards were fabricated using 2-mm-thick sheet as the first layer and 3-mm-thick sheet as the second layer. Players used the mouthguards for 2 years. Before and after using the mouthguards, the thicknesses of nine areas were measured. In addition, the lengths of five areas were used to analyze shape deformation. Results After 2 years, the thicknesses of all measured areas had significantly reduced, and the lengths had significantly increased. Thickness reduction of the posterior-occlusal and anterior-incisal areas and deformation of the posterior-buccal and posterior-palatal areas were significantly larger than those in other measured areas. Conclusions Mouthguards should be changed on a regular basis to minimize thickness reduction and deformation. Occlusal and incisal thickness and length of the buccal-posterior area and the palatal-posterior area are factors to be considered in establishing guidelines regarding the timing of mouthguard change. |
| Databáze: | OpenAIRE |
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