Revista de Odontologia da UNESP
https://revodontolunesp.com.br/journal/rou/article/doi/10.1590/1807-2577.20716
Revista de Odontologia da UNESP
Original Article

Avaliação da rugosidade superficial e análise morfológica de cimentos de ionômero de vidro: influência do armazenamento em saliva artificial

Evaluation of surface roughness and morphological analysis of glass ionomer cements: influence of storage in artificial saliva

Renally Bezerra Wanderley e LIMA; Julyana de Araújo OLIVEIRA; Laís César de VASCONCELOS; Ana Karina Maciel ANDRADE; Rosângela Marques DUARTE

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Resumo

Resumo: Introdução: O desenvolvimento dos cimentos de ionômero de vidro (CIVs) proporcionou vantagens aos procedimentos restauradores diretos devido a suas propriedades, como adesão química à estrutura dentária e liberação de flúor. No entanto, o ambiente bucal pode promover condições capazes de alterar a superfície deste material.

Objetivo: Avaliar a rugosidade superficial e a morfologia de superfície de quatro cimentos de ionômero de vidro (Ketac Molar Easy Mix, Vitremer, Vitro Molar e Maxxion), quando imersos em diferentes soluções de saliva artificial.

Material e método: Dez amostras de cada material foram confeccionadas e a rugosidade superficial foi avaliada antes e após imersão em saliva artificial ácida e neutra, durante 28 dias, por meio de um rugosímetro (Surftest SJ - 40), e a análise morfológica deu-se através de microscopia eletrônica de varredura. Os valores médios de rugosidade foram submetidos aos testes de Kruskal-Wallis e de Wilcoxon, além do teste de Mann Whitney, com nível de significância de 5%.

Resultado: Os valores de rugosidade foram maiores estatisticamente após a imersão em saliva ácida e neutra para todos os materiais, exceto o Vitromolar, que não apresentou diferença estatística entre as médias de rugosidade antes e após imersão em saliva neutra. O Maxxion R apresentou estatisticamente maiores valores de rugosidade quando comparado aos outros materiais após imersão em saliva neutra e ácida.

Conclusão: A rugosidade superficial dos cimentos de ionômero de vidro aumentou após imersão em saliva neutra e ácida para a maioria dos cimentos estudados. A solução de armazenagem ácida promoveu aumento da rugosidade superficial para o Maxxion R e o Vitro Molar.

Palavras-chave

Cimentos de ionômeros de vidro, propriedades de superfície, saliva

Abstract

Abstract: Introducion: The development of glass ionomer cements brought advantages to direct restorative procedures due to properties such as chemical adhesion to dental structure and fluoride release. Nevertheless, oral environment may provide conditions which can alter material surface.

Objective: To evaluate surface roughness and surface morphology of four glass ionomer cements (Ketac Molar Easy Mix, Vitremer, Vitro Molar e Maxxion) when immersing on different artificial saliva.

Material and method: Ten specimens of each material were fabricated and surface roughness was measured before and after immersion on neutral and acid artificial saliva for 28 days using a rugosimeter (Surftest SJ–40) and microscopy analysis by scanning electron microscopy. Roughness data were analyzed statistically by Kruskal-Wallis test, Wilcoxon test and Mann Whitney test, at 5% significance level.

Result: Roughness values were statistically higher after immersion on neutral and acid artificial saliva for all materials, except for Vitromolar that did not presented no statistical difference between roughness values before and after immersion on neutral saliva. The Maxxion R presented statistically higher roughness values compared to all materials after immersion on neutral and acid artificial saliva.

Conclusion: The superficial roughness of glass ionomer cement increased after immersion on neutral and acid artificial saliva for most of the materials. Acid storage solution promoted a greater increase in surface roughness after immersion of the specimens for Maxxion and Vitro Molar.
 

Keywords

Glass ionomer cements, properties of surface, saliva

References

Wilson AD, Kent BE. The glass-ionomer cement, a new translucent dental filling material. J Chem Technol Biotechnol. 1971 Nov;21(11):313. http://dx.doi.org/10.1002/jctb.5020211101.

Silva RC, Zuanon ACC. Surface roughness of glass ionomer cements indicated for Atraumatic Restorative Treatment (ART). Braz Dent J. 2006;17(2):106-9. PMid:16924335. http://dx.doi.org/10.1590/S0103-64402006000200004.

Carvalho JR Jr, Guimarães LF, Correr-Sobrinho L, Pécora JD, Sousa-Neto MD. Evaluation of solubility, desintegration, and dimensional alterations of a glass ionomer root canal sealer. Braz Dent J. 2003;14(2):114-8. PMid:12964655. http://dx.doi.org/10.1590/S0103-64402003000200008.

Paradella TC. Cimentos de ionômero de vidro na odontologia moderna. Rev Odontol UNESP. 2004;33(4):157-61.

Mount GJ. Atlas de cimento de ionômero de vidro: guia para o clínico. 2. ed. São Paulo: Santos; 1999.

Tyas MJ. Clinical evaluation of glass ionomer cement restorations. J Appl Oral Sci. 2006;14(spe Supl):10-3. PMid:19089080. http://dx.doi.org/10.1590/S1678-77572006000700003.

Pedrini D, Gaetti-Jardim E Jr, Mori GG. Influência da aplicação de flúor sobre a rugosidade superficial do ionômero de vidro Vitremer e adesão microbiana a este material. Pesqui Odontol Bras. 2001 Mar;15(1):70-6. PMid:11705319. http://dx.doi.org/10.1590/S1517-74912001000100013.

Yip HK, To WM. An FTIR study of the effects of artificial saliva on the physical characteristics of the glass ionomer cements used for art. Dent Mater. 2005 Aug;21(8):695-703. PMid:16026664. http://dx.doi.org/10.1016/j.dental.2004.09.009.

Briso ALF, Caruzo LP, Guedes APA, Catelan A, Santos PH. In vitro evaluation of surface roughness and microhardness of restorative materials submitted to erosive challenges. Oper Dent. 2011;36(4):397-402. PMid:21827225. http://dx.doi.org/10.2341/10-356-L.

Lucena MCM, Gomes RVS, Santos MCMS. Avaliação da rugosidade superficial da resina composta filtek Z350 3M/ espe de baixa viscosidade exposta a enxaguatórios com e sem álcool. Odontol Clín-Cient. 2010 Mar;9(1):59-64.

Munack J, Haubert H, Dogan S, Geurtsen W. Effects of various storage media on surface hardness and structure of four polyacid-modified composite resins (“compomers”). Clin Oral Investig. 2001 Dec;5(4):254-9. PMid:11800439. http://dx.doi.org/10.1007/s00784-001-0136-1.

Aliping-McKenzie M, Linden RWA, Nicholson JW. The effect of saliva on surface hardness and water sorption of glass-ionomers and “compomers”. J Mater Sci Mater Med. 2003 Oct;14(10):869-73. PMid:15348524. http://dx.doi.org/10.1023/A:1025630609544.

Momesso MGC, Silva RC, Imparato JCP, Molina C, Navarro RS, Ribeiro SJL. ” surface roughness of different glass ionomer cements indicated for ART restorations. “In vitroBraz J Oral Sci. 2010;9(2):77-80.

Wilson AD, Crisp S, Abel G. Characterisation of glass ionomer cements 4: effect of molecular weight on physical properties. J Dent. 1977 Jun;5(2):117-20. PMid:269134. http://dx.doi.org/10.1016/0300-5712(77)90070-7.

Wilson AD, Hill RG, Warrens CP, Lewis BG. The influence of polyacid molecular weight on some properties of glass ionomer cements. J Dent Res. 1989 Feb;68(2):89-94. PMid:2918140. http://dx.doi.org/10.1177/00220345890680021401.

Martin N, Jedynakiewicz NM, Fisher AC. Hygroscopic expansion and solubility of composite restoratives. Dent Mater. 2003 Mar;19(2):77-86. PMid:12543112. http://dx.doi.org/10.1016/S0109-5641(02)00015-5.

Musanje L, Darvell BW. Aspects of water sorption from the air, water and artificial saliva in resin composite restorative materials. Dent Mater. 2003 Jul;19(5):414-22. PMid:12742437. http://dx.doi.org/10.1016/S0109-5641(02)00085-4.

Silva KG, Pedrini D, Delbem AC, Cannon M. Effect of pH variations in a cycling model on the properties of restorative materials. Oper Dent. 2007 Jul-Aug;32(4):328-35. PMid:17695604. http://dx.doi.org/10.2341/06-89.

Hamouda IM. Effects of various beverages on hardness, roughness, and solubility of esthetic restorative materials. J Esthet Restor Dent. 2011 Oct;23(5):315-22. PMid:21977954. http://dx.doi.org/10.1111/j.1708-8240.2011.00453.x.

Cattani-Lorente MA, Dupuis V, Moya F, Payan J, Meyer JM. Comparative study of the physical properties of a polyacid-modified composite resin and a resin-modified glass ionomer cement. Dent Mater. 1999 Jan;15(1):21-32. PMid:10483392. http://dx.doi.org/10.1016/S0109-5641(99)00010-X.

Prakki A, Cilli R, Mondelli RF, Kalachandra S, Pereira JC. Influence of pH environment on polymer based dental material properties. J Dent. 2005 Feb;33(2):91-8. PMid:15683889. http://dx.doi.org/10.1016/j.jdent.2004.08.004.

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

Yip KH, Peng D, Smales RJ. Effects of APF gel on the physical structure of compomers and glass ionomer cements. Oper Dent. 2001 May-Jun;26(3):231-8. PMid:11357564.

Saleem M, Haq IU. Comparison of solubility of zinc phosphate and glass ionomer cement in artificial saliva of varying pH values (in vitro study). Pak Oral Dent J. 2011 Jun;31(1):231-4.

Yanikoğlu N, Yeşil Duymuş Z. Evaluation of the solubility of dental cements in artificial saliva of different pH values. Dent Mater J. 2007 Jan;26(1):62-7. PMid:17410894. http://dx.doi.org/10.4012/dmj.26.62.

Mohamed-Tahir MA, Yap AU. Effects of pH on the surface texture of glass ionomer based/containing restorative materials. Oper Dent. 2004 Sep-Oct;29(5):586-91. PMid:15470882.
 

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