Impact of plasticization temperature on the mechanical properties of sports mouthguards
Objective: Mouthguards can reduce or even prevent orofacial injuries. These devices are responsible for absorbing part of the energy of an impact force, while the remaining part is dissipated. The present study aimed to evaluate how the plasticization temperature of the sports mouthguards’ manufact...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Estadual Paulista
2024-09-01
|
| Series: | Brazilian Dental Science |
| Online Access: | https://ojs.ict.unesp.br/index.php/cob/article/view/4357 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849228882003099648 |
|---|---|
| author | Ester Stephany Rodrigues da Silva Thales Ribeiro de Magalhães Filho Simone Saldanha Ignácio de Oliveira Karin de Mello Weig Luise Gomes da Motta Juliana Nunes da Silva Meirelles Dória Maia |
| author_facet | Ester Stephany Rodrigues da Silva Thales Ribeiro de Magalhães Filho Simone Saldanha Ignácio de Oliveira Karin de Mello Weig Luise Gomes da Motta Juliana Nunes da Silva Meirelles Dória Maia |
| author_sort | Ester Stephany Rodrigues da Silva |
| collection | DOAJ |
| description |
Objective: Mouthguards can reduce or even prevent orofacial injuries. These devices are responsible for absorbing part of the energy of an impact force, while the remaining part is dissipated. The present study aimed to evaluate how the plasticization temperature of the sports mouthguards’ manufacturing process influences their mechanical properties and protective potential. Material and Methods: Specimens were made according to different plasticization temperatures (85°C, 103°C, 121°C and 128°C) and different dental brands of EVA sheets (Bio-art and FGM). Plasticization temperatures were measured using a culinary thermometer (Term; TP300). The mechanical properties evaluated were: energy absorption capacity, deformation, and modulus of elasticity. Compression testing was carried out in the Emic universal testing machine with a speed of 600 mm/min to simulate a punch. Results: EVA sheets submitted to the highest temperatures (121°C and 128°C) had their energy absorption capacity reduced. In addition, the samples that plasticized at the lowest temperature (85°C) showed higher absorption capacity, lower elastic modulus, and less variation in its dimensions. It proved to be the most effective in protection and with greater durability. Conclusion: The plasticization temperature proved to be an influential factor in the absorption capacity of mouthguards, so the increase in temperature led to a reduction in this property, especially when higher than 120°C. In addition, the plasticization temperature may vary depending on the sheet brand used. Finally, the kitchen thermometer used proved to be efficient and practical, thanks to its easy-to-read display and wide availability on the market.
KEYWORDS
Modulus of elasticity; Mouthguards; Physicochemical absorption; Polyethylene vinyl acetate; Temperature.
|
| format | Article |
| id | doaj-art-8d07144dff28495d90544df4fd09282c |
| institution | Kabale University |
| issn | 2178-6011 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Brazilian Dental Science |
| spelling | doaj-art-8d07144dff28495d90544df4fd09282c2025-08-22T13:49:28ZengUniversidade Estadual PaulistaBrazilian Dental Science2178-60112024-09-0127210.4322/bds.2024.e4357Impact of plasticization temperature on the mechanical properties of sports mouthguardsEster Stephany Rodrigues da Silva0https://orcid.org/0009-0005-1973-3524Thales Ribeiro de Magalhães Filho1https://orcid.org/0000-0003-4188-0975Simone Saldanha Ignácio de Oliveira2https://orcid.org/0000-0003-3829-094XKarin de Mello Weig3https://orcid.org/0000-0002-7890-6676Luise Gomes da Motta4https://orcid.org/0000-0001-8734-3441Juliana Nunes da Silva Meirelles Dória Maia5https://orcid.org/0000-0001-6727-3917Universidade Federal Fluminense. Niterói, RJ, Brazil.Universidade Federal Fluminense, Disciplina de Materiais Dentários. Niterói, RJ, Brazil.Universidade Federal Fluminense, Disciplina de DTM e Dor Orofacial. Niterói, RJ, Brazil.Universidade Federal Fluminense, Disciplina de Materiais Dentários. Niterói, RJ, Brazil.Universidade Federal Fluminense, Disciplina de Materiais Dentários. Niterói, RJ, Brazil.Universidade Federal Fluminense, Disciplina de Materiais Dentários. Niterói, RJ, Brazil. Objective: Mouthguards can reduce or even prevent orofacial injuries. These devices are responsible for absorbing part of the energy of an impact force, while the remaining part is dissipated. The present study aimed to evaluate how the plasticization temperature of the sports mouthguards’ manufacturing process influences their mechanical properties and protective potential. Material and Methods: Specimens were made according to different plasticization temperatures (85°C, 103°C, 121°C and 128°C) and different dental brands of EVA sheets (Bio-art and FGM). Plasticization temperatures were measured using a culinary thermometer (Term; TP300). The mechanical properties evaluated were: energy absorption capacity, deformation, and modulus of elasticity. Compression testing was carried out in the Emic universal testing machine with a speed of 600 mm/min to simulate a punch. Results: EVA sheets submitted to the highest temperatures (121°C and 128°C) had their energy absorption capacity reduced. In addition, the samples that plasticized at the lowest temperature (85°C) showed higher absorption capacity, lower elastic modulus, and less variation in its dimensions. It proved to be the most effective in protection and with greater durability. Conclusion: The plasticization temperature proved to be an influential factor in the absorption capacity of mouthguards, so the increase in temperature led to a reduction in this property, especially when higher than 120°C. In addition, the plasticization temperature may vary depending on the sheet brand used. Finally, the kitchen thermometer used proved to be efficient and practical, thanks to its easy-to-read display and wide availability on the market. KEYWORDS Modulus of elasticity; Mouthguards; Physicochemical absorption; Polyethylene vinyl acetate; Temperature. https://ojs.ict.unesp.br/index.php/cob/article/view/4357 |
| spellingShingle | Ester Stephany Rodrigues da Silva Thales Ribeiro de Magalhães Filho Simone Saldanha Ignácio de Oliveira Karin de Mello Weig Luise Gomes da Motta Juliana Nunes da Silva Meirelles Dória Maia Impact of plasticization temperature on the mechanical properties of sports mouthguards Brazilian Dental Science |
| title | Impact of plasticization temperature on the mechanical properties of sports mouthguards |
| title_full | Impact of plasticization temperature on the mechanical properties of sports mouthguards |
| title_fullStr | Impact of plasticization temperature on the mechanical properties of sports mouthguards |
| title_full_unstemmed | Impact of plasticization temperature on the mechanical properties of sports mouthguards |
| title_short | Impact of plasticization temperature on the mechanical properties of sports mouthguards |
| title_sort | impact of plasticization temperature on the mechanical properties of sports mouthguards |
| url | https://ojs.ict.unesp.br/index.php/cob/article/view/4357 |
| work_keys_str_mv | AT esterstephanyrodriguesdasilva impactofplasticizationtemperatureonthemechanicalpropertiesofsportsmouthguards AT thalesribeirodemagalhaesfilho impactofplasticizationtemperatureonthemechanicalpropertiesofsportsmouthguards AT simonesaldanhaignaciodeoliveira impactofplasticizationtemperatureonthemechanicalpropertiesofsportsmouthguards AT karindemelloweig impactofplasticizationtemperatureonthemechanicalpropertiesofsportsmouthguards AT luisegomesdamotta impactofplasticizationtemperatureonthemechanicalpropertiesofsportsmouthguards AT juliananunesdasilvameirellesdoriamaia impactofplasticizationtemperatureonthemechanicalpropertiesofsportsmouthguards |