Analysis of the Microhybrid Composite Resin Surface under the Effect of Whitening Agents with Hydrogen Peroxide
DOI:
https://doi.org/10.21270/archi.v11i3.5433Keywords:
Tooth Bleaching, Dental Restoration, Permanent, Hydrogen PeroxideAbstract
Introduction: The whitening treatment has been gaining prominence in the dental market, however its adverse effects are still controversial, especially about what changes the treatment can cause in composite resins. Objective: To evaluate changes in the roughness of composite resin surfaces submitted to 2 different bleaching techniques based on hydrogen peroxide. Material and Method: Hydrogen peroxide 35% was used in 3 sessions of 45 minutes each and Hydrogen peroxide 7.5% for 45 minutes for 15 consecutive days. Profiling, roughness and electron microscopy analysis were performed. Results: The average roughness (Ra) of the resin changed after exposure to different bleaching agents when compared to the control group (with a statistically significant difference p <0.05). The profilometric images showed that resins submitted to bleaching obtained a more irregular surface with small reliefs, capable of decreasing Ra and altering the microtexture of the surface. Scanning electron microscopy showed no difference between groups. Conclusion: The average roughness values of the resin specimens decreased when compared to that of the uncleaned samples. The profilometric images showed that the specimens exposed to the bleaching agents presented a more irregular surface with small reliefs, capable of decreasing the average roughness value and altering the microtexture of the surface. In the scanning electron microscopy it was not possible to verify the difference between the groups.
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References
Portolani Junior MV, Candido MSM. Efeito dos agentes clareadores sobre as estruturas dentais. Rev Odontol UNESP. 2005;34(2):91-4.
Kabbach W, Bevilacqua FM, Campos JADB, Dinelli W, Porto Neto ST. Avaliação da rugosidade superficial de resina composta após a ação de agentes clareadores imediatos. Rebram. 2006;9(2):239-42.
Costa JB, Mcpharlin R, Paravina RD, Ferracane JL. Comparison of at-home and in-office tooth whitening using a novel shade guide. Oper Dent. 2010;35(4):381-88.
Azevedo MR, Gomes GM, Bittencourt BF, Gomes OMM, Gomes JC. Microdureza de resinas compostas submetidas a clareamento de consultório. Dentística On-line. 2011;10(21): 30-4.
Camacho GB, Nedel F, Martins GB, Torino GG. Avaliação da rugosidade superficial de resinas compostas expostas a diferentes agentes. Rev Odontol UNESP. 2008;37(3):211-16.
Fayad MVL, Anbinder AL, Marques AP, Amore R, Valera MC, Araújo MAM. Avaliação da infiltração marginal após clareamento dental e restauração com resina composta, variando o sistema adesivo. PGR-Pós-Grad Rev Fac Odontol São José dos Campos. 2002;5(1):43-9.
Polydorou O, Mӧnting JS, Hellwig E, Auschill TM. Effect of in-office tooth bleaching on the microhardness of six dental esthetic restorative materials. Dent Mater. 2007;23(2):153-58.
Josso B, Burton DR, Lalor MJ. Frequency normalised wavelet transform for surface roughness analysis and characterisation. Wear. 2002;252(5/6):491-500.
Pinheiro ALP. Nitretação iônica de aços SAE 1045 aplicados a hastes de êmbolos de carregamento leve [dissertação]. Natal:Universidade Federal do Rio Grande do Norte, UFRN; 1998.
Muzilli M. Influência do tratamento de superfície na rugosidade Ra e dureza Vickers de cerâmicas para cobertura incisal [dissertação] Piracicaba: Universidade Estadual de Campinas, UNICAMP; 2005.
Dogan A ,Ozcelik S ,Dogan OM ,Hubbezoglu I,Cakmak M, Bolayir G. Effect of bleaching on roughness of dental composite resins. J Adhes.2008;84:897-914,
Bailey SJ, Swift EJ. Effects of home bleaching products on composite resins. Quintessence Int. 1992;23:489-94.
Pozzobon RT, Candido MSM, Rodrigues J, Antônio L. Análise da rugosidade superficial de materiais restauradores estéticos - Efeito de agentes clareadores e tempo. Rev odonto ciênc. 2005;20(49):204-209.
Ribeiro FSV, Branco JRT, Albuquerque RC, Vasconcellos WA. Profilometric analysis of restorative materials submitted to bleaching. Rev Odontol UNESP. 2006;35(2):199-203.
