Effect of nonthermal plasma treatment on the surface of dental resins immersed in artificial saliva
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Daniela Micheline dos Santos
, Aljomar Jose Vechiato-Filho
Abstract
This study aimed (1) to use scanning electron microscopy associated with energy-dispersive spectroscopy (SEM-EDS) to characterize the surface of dental resins after nonthermal plasma (NTP) treatment and (2) to use surface energy analysis to evaluate whether NTP treatment protects the microhardness of the resins against the degradative effects of saliva. Twenty-eight acrylic and composite resin discs were fabricated and divided into four groups. Two groups received no surface treatment [control acrylic resin (Co/AR) and control composite resin (Co/CR] and two groups [NTP-treated acrylic resin (NTP/AR) and NTP-treated composite resin (NTP/CR)] were treated with NTP. One disc from each group was analyzed using SEM-EDS. Ten discs were subjected to surface energy analysis (before and after NTP) and microhardness assessments (at various time points). p<0.05 was used to determine statistical significance. Surface energy decreased after NTP treatment. Microhardness was reduced after 30 days in the Co/AR group and between 15 and 30 days in the NTP/AR group. Microhardness decreased in the Co/CR group after 15 and 30 days, whereas there was no difference after 30 days in the NTP/CR group. SEM images showed the presence of cracks and holes after 30 days in both Co/AR and NTP/AR groups. Cracks and silicon particles were observed after 30 days in the Co/CR group. Both the acrylic and composite resins exhibited hydrophobic properties after NTP treatment. The reduction in microhardness of the acrylic resin after NTP treatment was lower than that of the composite resin.
References
[1] Bettencourt AF, Neves CB, de Almeida MS, Pinheiro LM, Oliveira SA, Lopes LP, Castro MF. Biodegradation of acrylic based resins: a review. Dent. Mater. 2010, 26, e171–e180.10.1016/j.dental.2010.01.006Search in Google Scholar PubMed
[2] Rahim TN, Mohamad D, Md Akil H, Ab Rahman I. Water sorption characteristics of restorative dental composites immersed in acidic drinks. Dent. Mater. 2012, 28, e63–e70.10.1016/j.dental.2012.03.011Search in Google Scholar PubMed
[3] Cilli R, Pereira JC, Prakki A. Properties of dental resins submitted to pH catalysed hydrolysis. J. Dent. 2012, 40, 1144–1150.10.1016/j.jdent.2012.09.012Search in Google Scholar PubMed
[4] de Paula AB, de Fúcio SB, Alonso RC, Ambrosano GM, Puppin-Rontani RM. Influence of chemical degradation on the surface properties of nano restorative materials. Oper. Dent. 2014, 39, E109–E117.10.2341/12-340Search in Google Scholar PubMed
[5] Goiato MC, Dos Santos DM, Andreotti AM, Nobrega AS, Moreno A, Haddad MF, Pesqueira AA. Effect of beverages and mouthwashes on the hardness of polymers used in intraoral prostheses. J. Prosthodont. 2014, 23, 559–564.10.1111/jopr.12151Search in Google Scholar PubMed
[6] Fonseca AS, Gerhardt KM, Pereira GD, Sinhoreti MA, Schneider LF. Do new matrix formulations improve resin composite resistance to degradation processes? Braz. Oral. Res. 2013, 27, 410–416.10.1590/S1806-83242013000500005Search in Google Scholar PubMed
[7] Muench A, Correa IC, Grande RHM, João M. The effect of specimen dimensions on the flexural strength of a composite resin. J. Appl. Oral. Sci. 2005, 13, 265–268.10.1590/S1678-77572005000300012Search in Google Scholar
[8] Vechiato Filho AJ, Dos Santos DM, Goiato MC, de Medeiros RA, Moreno A, Bonatto LdaR, Rangel EC. Surface characterization of lithium disilicate ceramic after nonthermal plasma treatment. J. Prosthet. Dent. 2014, 112, 1156–1163.10.1016/j.prosdent.2014.02.021Search in Google Scholar PubMed
[9] Zamperini CA, Machado AL, Vergani CE, Pavarina AC, Rangel EC, Cruz NC. Evaluation of fungal adherence to plasma-modified polymethylmethacrylate. Mycoses 2011, 54, e344–e351.10.1111/j.1439-0507.2010.01921.xSearch in Google Scholar PubMed
[10] Zamperini CA, Carneiro Hde L, Rangel EC, Cruz NC, Vergani CE, Machado AL. In vitro adhesion of Candida glabrata to denture base acrylic resin modified by glow-discharge plasma treatment. Mycoses 2013, 56, 134–144.10.1111/j.1439-0507.2012.02223.xSearch in Google Scholar PubMed
[11] Turssi CP, Hara AT, de Magalhães CS, Serra MC, Rodrigues AL Jr. Influence of storage regime prior to abrasion on surface topography of restorative materials. J. Biomed. Mater. Res. B Appl. Biomater. 2003, 65, 227–232.10.1002/jbm.b.10005Search in Google Scholar PubMed
[12] Borba M, Della Bona A, Cecchetti D. Flexural strength and hardness of direct and indirect composites. Braz. Oral. Res. 2009, 23, 5–10.10.1590/S1806-83242009000100002Search in Google Scholar PubMed
[13] Rangel RCC, Pompeu TC, Barros Jr JLS, Antonio CA, Santos NM, Pelici BO, Freire CMA, Cruz NC, Rangel EC. Improvement of the Corrosion Resistance of Carbon Steel by Plasma Deposited Thin Films, 1st ed., Rijeka: Croatia, 2012.Search in Google Scholar
[14] Lin CT, Lee SY, Tsai TY, Dong DR, Shih YH. Degradation of repaired denture base materials in simulated oral fluid. J. Oral. Rehabil. 2000, 27, 190–198.10.1046/j.1365-2842.2000.00513.xSearch in Google Scholar PubMed
[15] Della Bona A, Corazza PH, Zhang Y. Characterization of a polymer-infiltrated ceramic-network material. Dent. Mater. 2014, 30, 564–569.10.1016/j.dental.2014.02.019Search in Google Scholar PubMed PubMed Central
[16] International Organization for Standardization. Specification 1567: Denture Base Polymers, 2nd ed., ISO: Switzerland, 1999.Search in Google Scholar
[17] Braden M, Causton EE, Clarke RL. Diffusion of water in composite filling materials. J. Dent. Res. 1976, 55, 730–732.10.1177/00220345760550050501Search in Google Scholar PubMed
[18] Kalachandra S, Turner DT. Water sorption of polymethacrylate networks: bis-GMA/TEGDM copolymers. Biomed. Mater. Res. 1987, 21, 329–338.10.1002/jbm.820210306Search in Google Scholar PubMed
[19] Takahashi Y, Chai J, Kawaguchi M. Strength of relined denture base polymers subjected to long-term water immersion. Int. J. Prosthodont. 2000, 13, 205–208.Search in Google Scholar
[20] Aliping-McKenzie M, Linden RW, Nicholson JW. The effect of Coca-Cola and fruit juices on the surface hardness of glass-ionomers and ‘compomers’. J. Oral. Rehabil. 2004, 31, 1046–1052.10.1111/j.1365-2842.2004.01348.xSearch in Google Scholar PubMed
[21] Braun KO, Mello JA, Rached RN, Del Bel Cury AA. Surface texture and some properties of acrylic resins submitted to chemical polishing. J. Oral. Rehabil. 2003, 30, 91–98.10.1046/j.1365-2842.2003.00997.xSearch in Google Scholar PubMed
[22] 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, 1085–1089.10.1111/j.1365-2842.2004.01147.xSearch in Google Scholar PubMed
[23] Ferracane JL. Hygroscopic and hydrolytic effects in dental polymer networks. Dent. Mater. 2006, 22, 211–222.10.1016/j.dental.2005.05.005Search in Google Scholar PubMed
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- Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering
- Effect of nonthermal plasma treatment on the surface of dental resins immersed in artificial saliva
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Articles in the same Issue
- Frontmatter
- Original articles
- Levofloxacin loaded gelrite-cellulose polymer based sustained ocular drug delivery: formulation, optimization and biological study
- Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering
- Effect of nonthermal plasma treatment on the surface of dental resins immersed in artificial saliva
- Spray dried hydroxyapatite-polyvinyl alcohol biocomposites
- Study on the thermal stability and ablation properties of metallic oxide-filled silicone rubber composites using uniform design method
- NR/SBR composites reinforced with organically functionalized MWCNTs: simultaneous improvement of tensile strength and elongation and enhanced thermal stability
- The control and optimization of the curing process of epoxy coatings: a case of poly(glycidoxy siloxane) resins
- Effect of γ irradiation on the impact response of rigid polyurethane foam
- Effects of fiber surface modification on the friction coefficient of luffa fiber/polyester composites under dry sliding condition
- Effect of surface modification on the compressive properties of silica fume/polyurethane composites
- Weldability of pipe grade polyethylenes as realized from thermal and mechanical properties assessments
- Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine