Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/doi/10.1590/1807-2577.11718
Revista de Odontologia da UNESP
Original Article

The influence of three photoactivation techniques on the sorption and solubility of different composite resins

A influência de três técnicas de fotoativação na sorção e solubilidade de diferentes resinas compostas

Marçal Seitaro MATUMOTO; Márcio José MENDONÇA; Priscilla do Monte Ribeiro BUSATO; Brenda Matsunaga LAURINDO; Veridiana CAMILOTTI

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Abstract

Abstract: Introduction: There is a growing demand for aesthetic restorations and the polymerized composite resins are the most used material in these procedures. In order to achieve greater resistance to solubilization proper polymerization is required.

Objective: Evaluate the influence of three photoactivation techniques, on sorption and solubility of three composite resins.

Materials and methods: 90 test samples measuring 8 mm diameter and 1 mm thick were made and divided into 9 groups (n=10) of resins -Filtek Z350 XT, Tetric N-Ceram and IPS Empress Direct, each of them was polymerized with LED Bluephase, using the techniques: Conventional, Soft-Start (SS) and Pulse Delay (PD). Afterwards they were placed in desiccator with silica gel at 98.6 F and weighed daily until obtaining a constant mass (m1). Then they were immersed in deionized water for seven days and weighed again (m2). The test sample reconditioning was performed using the m1 procedure, until a constant mass (m3 ) was obtained. The sorption and solubility values were calculated and subjected to ANOVA test (two-way), followed by Tukey post hoc, p<0.05.

Result: There were no statistically significant differences in sorption and solubility among the studied resins when photoactivation techniques were compared. For solubility analysis, statistically significant differences were observed among the materials. The results for composite resin Filtek Z350 XT presented higher statistical hybridization values than those of the other evaluated resins.

Conclusion: The different forms of photoactivation had no influence on the sorption and solubility of the tested composite resins.

Keywords

Composite resin, light polymerization, water sorption, solubility

Resumo

Resumo: Introdução: Há uma crescente demanda por restaurações estéticas, sendo as resinas compostas polimerizadas o material mais utilizados nesses procedimentos. Visando uma maior resistência à solubilização, uma polimerização adequada é necessária.

Objetivo: Avaliar a influência de três técnicas de fotoativação na sorção e na solubilidade de três resinas compostas.

Material e método: Foram confeccionados 90 corpos-de-prova, com 8 mm de diâmetro e 1 mm de espessura, divididos em 9 grupos (n = 10) de resinas - Filtek Z350 XT, Tetric N-Ceram e IPS Empress Direct, cada uma elas polimerizada com LED Bluephase, utilizando as técnicas: Convencional, Soft-Start (SS) e Pulse Delay (PD). Posteriormente foram colocadas em dessecador com sílica gel a 98,6 F e pesadas diariamente até obtenção de massa constante (m1). Depois foram imersos em água desionizada durante sete dias e pesados ​​novamente (m2). O recondicionamento da amostra de teste foi realizado utilizando o procedimento m1, até que uma massa constante (m3) fosse obtida. Os valores de sorção e solubilidade foram calculados e submetidos ao teste ANOVA (two-way), seguido por Tukey post hoc, p <0,05.

Resultado: Não houve diferenças estatisticamente significantes para sorção e solubilidade nas resinas estudadas quanto as técnicas de fotoativação. Para análise de solubilidade, foram observadas diferenças estatisticamente significantes entre os materiais. Os resultados para resina compostaFiltek Z350 XT apresentaram valores de hibridação estatísticos superiores aos das outras resinas compostas avaliadas.

Conclusão: As diferentes formas de fotoativação não influenciaram a sorção e solubilidade das resinas compostas testadas.
 

Palavras-chave

Resina composta, polimerização leve, sorção de água, solubilidade

References

Carvalho AA, Moreira FC, Fonseca RB, Soares CJ, Franco EB, Souza JB, et al. Effect of light sources and curing mode techniques on sorption, solubility and biaxial flexural strength of a composite resin. J Appl Oral Sci. 2012 Mar-Apr;20(2):246-52. http://dx.doi.org/10.1590/S1678-77572012000200021. PMid:22666845.

Lopes LG, Jardim AV Fo, de Souza JB, Rabelo D, Franco EB, Freitas GC. Influence of pulse-delay curing on sorption and solubility of a composite resin. J Appl Oral Sci. 2009 Jan-Feb;17(1):27-31. http://dx.doi.org/10.1590/S1678-77572009000100006. PMid:19148402.

Albuquerque PP, Moreira AD, Moraes RR, Cavalcante LM, Schneider LF. Color stability, conversion, water sorption and solubility of dental composites formulated with different photoinitiator Systems. J Dent. 2013 Aug;41(Suppl 3):e67-72. http://dx.doi.org/10.1016/j.jdent.2012.11.020. PMid:23228497.

Soares LE, Cesar IC, Santos CG, De Cardoso AL, Liporoni PC, Munin E, et al. Influence of coffee on reflectance and chemistry of resin composite protected by surface sealant. Am J Dent. 2007 Oct;20(5):299-304. PMid:17993026.

Anseth KS, Anderson KJ, Bowman CN. Radical concentrations, environments, and reactivities during crosslinking polymerizations. Macromol Chem Phys. 1996 Mar;197(3):833-48. http://dx.doi.org/10.1002/macp.1996.021970306.

Busato PMR, Oliveira ECS, Busato MCA, Mendonça MJ, Rodrigues NA, Vendrame TK, et al. Comparação das propriedades de sorção e solubilidade de cimentos submetidos a diferentes soluções e tempos de armazenagem. Polímeros. 2012;22(1):69-72. http://dx.doi.org/10.1590/S0104-14282012005000008.

Ferracane JL. Hygroscopic and hydrolytic effects in dental polymer networks. Dent Mater. 2006 Mar;22(3):211-22. http://dx.doi.org/10.1016/j.dental.2005.05.005. PMid:16087225.

Burgess JO, Walker RS, Porche CJ, Rappold AJ. Light curing-an update. Compend Contin Educ Dent. 2002 Oct;23(10):889-92, 894, 896 passim; quiz 908. PMid: 12434615.

Yap AUJ, Ng SC, Siow KS. Soft-start polymerization: influence on effectiveness of cure and post-gel shrinkage. Oper Dent. 2001 May-Jun;26(3):260-6. PMid:11357568.

Yap AU, Soh MS, Siow KS. Post-gel shrinkage with pulse activation and soft-start polymerization. Oper Dent. 2002 Jan-Feb;27(1):81-7. PMid:11822366.

Yap AU, Soh MS, Siow KS. Effectiveness of composite cure with pulse activation and soft-start polymerization. Oper Dent. 2002 Jan-Feb;27(1):44-9. PMid:11822365.

Giannini M, Di Francescantonio M, Pacheco RR, Boaro LCC, Braga RR. Characterization of water sorption, solubility, and roughness of Silorane and Methacrylate-based composite resins. Oper Dent. 2014 May-Jun;39(3):264-72. http://dx.doi.org/10.2341/12-526-L. PMid:23875819.

International Organization for Standization – ISO. ISO 4049: dentistry – resin-based restorative materials. Geneva: ISO; 2009.

Peutzfeldt A, Asmussen E. Resin composite properties and energy density of light cure. J Dent Res. 2005 Jul;84(7):659-62. http://dx.doi.org/10.1177/154405910508400715. PMid:15972597.

Bayindir YZ, Yildiz M, Bayindir F. The effect of “soft-start polymerization” on surface hardness of two packable composites. Dent Mater J. 2003 Dec;22(4):610-6. http://dx.doi.org/10.4012/dmj.22.610. PMid:15005237.

Rodrigues Valinhos Piccioni MA, Baratto-Filho F, Carlos Kuga M, Caregnatto de Morais EC, Campos EA. Cuspal movement related to different polymerization protocols. J Contemp Dent Pract. 2014 Jan;15(1):26-8. http://dx.doi.org/10.5005/jp-journals-10024-1482. PMid:24939260.

Brandt WC, Silva-Concilio LR, Neves AC, de Souza-Junior EJC, Sinhoreti MA. Influence of photoactivation method and mold for restoration on the Knoop hardness of resin composite restorations. Lasers Med Sci. 2013 Sep;28(5):1227-31. http://dx.doi.org/10.1007/s10103-012-1184-2. PMid:22971912.

Münchow EA, Ferreira AC, Machado RM, Ramos TS, Rodrigues-Junior SA, Zanchi CH. Effect of acidic solutions on the surface degradat ion of a micro-hybrid composite resin. Braz Dent J. 2014;25(4):321-6. http://dx.doi.org/10.1590/0103-6440201300058. PMid:25250496.
 

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