Efectos sobre microdureza y grado de conversión de dos tipos de resinas sometidas a tratamientos de pospolimerización

Melissa Lapesqueur; Patricia Surriaga; María Elena Masache; Berenice Vásquez; Mauricio Peña; Osnara María Mongruel Gómes; John Alexis Domínguez

doi:10.16925/od.v11i21.947

Effects on Micro-Hardness and Conversion Level of Two Types of Resins Undergoing Post-Polymerization Treatments

Research Articles

https://doi.org/10.16925/od.v11i21.947

Melissa Lapesqueur Ver Biografía

Universidad Hispano- Guarani

Patricia Surriaga Ver Biografía

Universidad Hispano-Guarani

María Elena Masache Ver Biografía

Universidad Hispano-Guarani

Berenice Vásquez Ver Biografía

Universidad Hispano-Guarani

Mauricio Peña Ver Biografía

Universidad Hispano-Guarani

Osnara María Mongruel Gómes Ver Biografía

Universidad Estadual de Ponta Grossa

John Alexis Domínguez Ver Biografía

Universidad Hispano-Guarani

Objetive: to evaluate micro-hardness and conversion levels after different postcuring techniques in two types of composite resins.

Materials and methods: 36 12mmdiameter 4 mm-height specimens were manufactured with two resins: Flitek z350 and Ena Miscerium. After the manufacturing, specimens were taken to the microduremeter and infrared spectroscopy, and endured four post-polymerization processes: boiling water, microwave, dry heat, autoclave and horno gradia.

Results: statistical analyses (by Anova) of two factors with Tukey’s Post Hoc Test by evaluated resin was performed, there appear media and standard deviation, conversion level degrees show a large increase in Ena resin compared to the control group (63.81%) when dry heat post-polymerization is performed (89.02%) and a large decrease when it is performed with boiling water (36.41%).

Conclusions: the post-curing process by microwave and autoclave increase micro-hardness level and conversion level, while distilled water at high temperatures diminishes superficial micro-hardness of composite resins.

Keywords: degree of conversion, micro-hardness, composite resins

Casselli DS, Faria-e-Silva AL, Casselli H, Martins LR. Marginal Adaptation of Composite Restorations in Class v Subjected to Thermal and Mechanical Cycles. J Appl Oral Sci. 2013 Jan -Feb,21(1):68-73 .

Dietschi D, Scampa U, T Campanile G, Holz J. Marginal Adaptation and Seal of Direct and Indirect Class ii Composite Resin Restorations: An in Vitro Evaluation. Quintessence Int. 1995 Feb;26(2):127- 38.

Nandini S. Indirect Resin Composites. J Conserv Dent. October December 2010;13(4):184-94.

Ferracane JL, Condon JR. Heat Treatment for Post- Curing Composite Materials: Properties and Fractography. Dent Mater 1992;Eight:290-5.

Miranda CB, Pagani C, Bottino MC, Benetti AR. A Comparison of Microhardness of Indirect Composite Restorative Materials. J Appl Oral Sci. 2003; 11:157–61.

Soares CJ, Celiberto L, Dechichi P, Fonseca RB, Martins LRM. Marginal Integrity and Microleakage of Direct and Indirect Inlays Composite - And Stereomicroscopic sem Evaluation. Braz Res Oral. 2005;19(4):295-301.

Silva GR, Simamoto-Júnior PC, da Mota AS, Soares CJ. Mechanical Properties of Light-Curing Composites Polymerized with Different Laboratory Photo- Curing Units. Dent Mater J. 2007;26:217-223.

Sharafeddin F, Sharifi E. The Effect of Microwave/ Laboratory Light Source Postcuring Technique and Wet-Aging on Microhardness of Composite Resin. Dent Res J (Isfahan). 2013 May-Jun;10(3):370-5.

Emami N, Söderholm KJ. How Light Irradiance and Curing Time Affect Monomer Conversion in Light-Cured Resin Composites. Eur J Oral Sci. 2003;111(6):536-42.

Peutzfeldt A, Asmussen E. The effect of posturing on quantity of remaining double bonds, mechanical properties, and in vitro wear of two resin composites. J Dent. 2000; 28(6):447-52

Asmussen E, Peutzfeldt A. Mechanical Properties of Heat Treated Restorative Resins for Use in the Inlay/ Onlay Technique. Scand J Dent Res 1990;98:564-7.

Rueggeberg FA, Ergle JW, Lockwood PE. Effect of Photoinitiator Level on Properties of a Light-Cured and Post-Cure Heated Model Resin System. Dent Mater 1997;13(6):360-4.

Da Fonte Porto Carreiro A, Dos Santos Cruz CA, Vergani CE. Hardness and Compressive Strength of Indirect Composite Resins: Effects of Immersion in Distilled Water. J Oral Rehabil. 2004;31(11):1085-9.

Eldiwany M, Powers JM, George LA. Mechanical Properties of Post-Curing Direct and Composites. Am J Dent. 1993;6:222-4.

Santana IL, Lodovici E, Matos JR, Medeiros IS, Miyazaki CL, Rodrigues-Filho LE. Effect of Experimental Heat Treatment on Mechanical Properties of Resin Composites. Braz Dent J. 2009;20:20510.

Viljanen EK, Skrifvars M, Vallittu PK. Dendritic Copolymers and Particulate Filler Composites for Dental Applications: Degree of Conversion and Thermal Properties. Dental Materials. 2007;23(11):1420-7.

Ernst CP, Kürschner R, Rippin G, Willershausen B.mStress Reduction in Resin-Based Composites Cured with a Two-Step Light-Curing Unit. Am J Dent. 2000;13(2):69-72.

Wendt SL Jr. The Effect of Heat Used as Secondary Cure Upon the Physical Properties of Three Composite Resins. ii. Wear, Hardness, and Color Stability. Quintessence Int 1987;18:351-356.

Mehl A, Hickel R, Kunzelmann KH. Physical Properties and Gap Formation of Light-Cured Composites with and without ‘Softstart Polymerization’. J Dent. 1997; 25:321-30.

Bagis YH, Rueggeberg FA. The Effect of Post-Curing, Residual Unreacted Monomer in Commercial Resin Compound Warming. Dent Mater. 2000;16:244-7.

Rodríguez G, Douglas R, Pereira S, Natalie A. Evolución y tendencias actuales en resinas compuestas. Acta Odontol Venez. 2008;46(3):381-92.

Sankarapandian M, Xu Q, McGrath JE, Taylor DT, Kalachandra S. Influence of Resin Molecular Structure on the Processibility and Physical Behavior of a Dental Composite Matrix. J Adv Mater. (1997); 28(I):59 63.

Sideridou I, Tserki V, Papanastasiou G. Effect of Chemical Structure on Degree of Conversion in Light-Cured Dimethacrylate-Based Dental Resins. Biomaterials. 2002;23(8):1819-29.

Khatri H, Stansbury J. Investigation of Alternatives to Urethane Dimethacrylate in Dental Resins. Journal of Dental Research. 1999;78:371. 56 Artículo de investigación Revista Nacional de Odontología / Volumen 11, Número 21 / julio-diciembre 2015

Imazato J, Russell H. Incorporation of Monomer Antibacterial into Resin Composite. Journal Dental Research. 1994;73(8):1437-43.

Lombardo GH, Carvalho CF, Galhano G, Souza RO, Junior LN, Pavanelli CA. Influence of Additional Polymerization in the Microhardness of Direct Composite Resins. Cienc Odontol Bras. 2007;10:10-5.

Ferracane JL, Mitchem JC, Condon JR, Todd R. Wear and Marginal Breakdown of Composites with Various Degrees of Cure. J Dent Res. 1997;76:1508-16.

Effects on Micro-Hardness and Conversion Level of Two Types of Resins Undergoing Post-Polymerization Treatments. (2015). Revista Nacional De Odontología, 11(21). https://doi.org/10.16925/od.v11i21.947

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Vol. 11 No. 21 (2015)

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2015-12-30

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