Por favor, use este identificador para citar o enlazar este ítem: https://repositorio.ufu.br/handle/123456789/35370
ORCID:  http://orcid.org/0000-0002-4425-0357
Tipo de documento: Trabalho de Conclusão de Curso
Tipo de acceso: Acesso Aberto
Fecha de embargo: 2024-07-11
Título: Influence of the treatments for ethylene-vinyl acetate on delamination of custom-fitted mouthguard
Autor: Resende, Júlia Borges
Primer orientador: Soares, Carlos José
Primer miembro de la banca: Soares, Carlos José
Segundo miembro de la banca: Soares, Priscilla Barbosa Ferreira
Tercer miembro de la banca: Oliveira, João Edson Carmo de
Resumen: Background/Aims: The contamination on the ethylene vinyl acetate (EVA) during the mouthguard fabrication can generate the delamination. The EVA treatment are not well stablished. The aim was to evaluate the effect of different EVA surface treatment on the contact angle, laminated bond strength and elongation capacity. Materials and Methods: EVA plates (Biaort) were characterized measuring the thickness (mm) using digital caliper, and the Shore A in 3 different locations before and after thermo-plasticization. The EVA plates were randomized in pars and received 5 different surface treatment protocols: NoT, No treatment (Control); IsoAc, Isopropyl Alcohol; Chlo, Chloroform; AcRm, Acrylic resin monomer; 70Alc, 70% Alcohol. The bonding plate area was standardized and after plasticization the specimens were made and tested according to ISO 37-2017 (n = 30). The maximum breaking force (N) and maximal elongation (ME, mm) were recorded at the specimen rupture using universal test machine (Instron E3000). The laminated bond strength (LBS, MPa) was obtained dividing the maximal maximum breaking force (N) by bonding area (mm2 ). The failure modes were classified regarding the rupture location in 5 levels. The contact angle surface was measured using ImageJ software. The LNS and ME data were analyzed by one-way ANOVA followed by Tukey’s test and Dunnet test. The failure mode data was analyzed by Chi-square test ( = 0.05). Results: The EVA surface treatment influenced significantly the LBS and ME (P < 0.001). The control group showed higher CAN and significantly lower LBS and ME than all 9 tested EVA surface treatment (P < 0.001). The AcRm and Chlo had similar LBS, ME and CAN values and higher than other protocols (P <0.001). Failure modes were not influenced by the EVA surface treatment (P = 0.604). Conclusions: All tested protocols resulted in higher LBS and tended to increase the ME of the EVA than control group. The acrylic resin monomer and chloroform surface treatments resulted in lower EVA CAN and higher LBS and ME than other tested protocols.
Abstract: Background/Aims: The contamination on the ethylene vinyl acetate (EVA) during the mouthguard fabrication can generate the delamination. The EVA treatment are not well stablished. The aim was to evaluate the effect of different EVA surface treatment on the contact angle, laminated bond strength and elongation capacity. Materials and Methods: EVA plates (Biaort) were characterized measuring the thickness (mm) using digital caliper, and the Shore A in 3 different locations before and after thermo-plasticization. The EVA plates were randomized in pars and received 5 different surface treatment protocols: NoT, No treatment (Control); IsoAc, Isopropyl Alcohol; Chlo, Chloroform; AcRm, Acrylic resin monomer; 70Alc, 70% Alcohol. The bonding plate area was standardized and after plasticization the specimens were made and tested according to ISO 37-2017 (n = 30). The maximum breaking force (N) and maximal elongation (ME, mm) were recorded at the specimen rupture using universal test machine (Instron E3000). The laminated bond strength (LBS, MPa) was obtained dividing the maximal maximum breaking force (N) by bonding area (mm2 ). The failure modes were classified regarding the rupture location in 5 levels. The contact angle surface was measured using ImageJ software. The LNS and ME data were analyzed by one-way ANOVA followed by Tukey’s test and Dunnet test. The failure mode data was analyzed by Chi-square test ( = 0.05). Results: The EVA surface treatment influenced significantly the LBS and ME (P < 0.001). The control group showed higher CAN and significantly lower LBS and ME than all 9 tested EVA surface treatment (P < 0.001). The AcRm and Chlo had similar LBS, ME and CAN values and higher than other protocols (P <0.001). Failure modes were not influenced by the EVA surface treatment (P = 0.604). Conclusions: All tested protocols resulted in higher LBS and tended to increase the ME of the EVA than control group. The acrylic resin monomer and chloroform surface treatments resulted in lower EVA CAN and higher LBS and ME than other tested protocols.
Palabras clave: Dentoalveolar trauma
Mouthguard
Ethylene vinyl acetate
Surface treatment
Delamination
Área (s) del CNPq: CNPQ::CIENCIAS DA SAUDE
Idioma: eng
País: Brasil
Editora: Universidade Federal de Uberlândia
Cita: RESENDE,Júlia Borges. Influence of the treatments for ethylene vinyl acetate ondelamination of custom-fitted mouthguard. 2022. 34 f. Trabalho de Conclusão de Curso (Graduação em Odontologia) – Universidade Federal de Uberlândia, Uberlândia, 2022.
URI: https://repositorio.ufu.br/handle/123456789/35370
Fecha de defensa: 11-jul-2022
Aparece en las colecciones:TCC - Odontologia

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