The Effect of Different Powers of Er:YAGLaser Treatment on Surface Morphology of an Indirect Composite Resin: SEM Evaluation
Journal of Lasers in Medical Sciences,
Vol. 5 No. 3 (2014),
22 June 2014
,
Page 130-134
Abstract
Introduction: Indirect composites are developed to overcome the shortcomings of direct composites but, the adhesion of resin cements to indirect composites is still difficult.
The purpose of this study was to evaluate the surface morphology of indirect resin composite treated by different powers of Er:YAGlaser using Scanning Electron Microscopy (SEM).
Methods: indirect resin composite blocks (GC Gradia DA2, Japan) with 15× 10 × 10 mm dimensions were made according to manufacturer's instructions (n=7). The bonding surface of these blocks were polished, then the samples were divided to seven groups as follow: Erbium-Doped Yttrium Aluminum Garnet (Er:YAG )laser with output power of 2, 3, 4, 5, 6,7 W (frequency of 20 Hz, very short pulse) and no treatment. Then, the surfaces were evaluated by scanning electron microscope.
Results: The surface treated by Er:YAG laser showed a porous surface. But the amount and pattern of these irregularities differ in each group which may produce micromechanical retention compared to control group with no treatment.
Conclusion: Er:YAG laser can be used as an alternative technique for surface treatment and roughening of indirect resin composites.- Er
- YAG lasers
- SEM
- composite resin
How to Cite
References
Melo MA, Moyses MR, Santos SG, Alcantara CE, Ribeiro JC. Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs. Braz Oral Res 2011;25(6):485-91.
Mak YF, Lai SC, Cheung GS, Chan AW, Tay FR, Pashley DH. Micro-tensile bond testing of resin cements to dentin and an indirect resin composite. Dent Mater 2002;18(8):609-21.
JA. p. Resin cements:into the 21st century. Comp Cont Educ Dent 1999;20:1173-8.
Nandini S. Indirect resin composites. J Conserv Dent 2010;13(4):184-94.
Soares CJ, Celiberto L, Dechichi P, Fonseca RB, Martins LR. Marginal integrity and microleakage of direct and indirect composite inlays: SEM and stereomicroscopic evaluation. Braz Oral Res 2005;19(4):295-301.
Loguercio AD BJ, Reis A, Grande RH. Microleakage of packable composite in Class 2 restorations. Quintessence Int 2004;35:29-34.
Carlos José Soares D, MS, PhDI; Marcelo Giannini, DDS, MS, PhDII; Marcelo Tavares de Oliveira, DDS, MSIII; Luis Alexandre Maffei Sartini Paulillo, DDS, MS, PhDII; Luis Roberto Marcondes Martins, DDS, MS, PhDI. Effect of surface treatments of laboratory-fabricated composites on the microtensile bond strength to a luting resin cement. J. Appl. Oral Sci 2004;12(1):45-50.
Touati B AN. Second-generation laboratory composite resins for indirect restorations. J Esthet Dent 1997;9:108-18.
D'Arcangelo C, Vanini L. Effect of three surface treatments on the adhesive properties of indirect composite restorations. J Adhes Dent 2007;9(3):319-26.
Hummel SK, Marker V, Pace L, Goldfogle M. Surface treatment of indirect resin composite surfaces before cementation. J Prosthet Dent 1997;77(6):568-72.
Hori S, Minami H, Minesaki Y, Matsumura H, Tanaka T. Effect of hydrofluoric acid etching on shear bond strength of an indirect resin composite to an adhesive cement. Dental materials journal 2008;27(4):515-22.
Kunt GE, Guler AU, Ceylan G, Duran I, Ozkan P, Kirtiloglu T. Effects of Er:YAG laser treatments on surface roughness of base metal alloys. Lasers in medical science 2012;27(1):47-51.
Sassi JF, Chimello DT, Borsatto MC, Corona SA, Pecora JD, Palma-Dibb RG. Comparative study of the dentin/adhesive systems interface after treatment with Er:YAG laser and acid etching using scanning electron microscope. Lasers Surg Med 2004;34(5):385-90.
Nilsson E AS, Karlsson S, Milleding P, Wennerbergg A. Factors affecting the shear bond strength of bonded composite inlays. Int J Prosthet 2000;13(1):52-8.
Barkmeier WW, Shaffer SE, Gwinnett AJ. Effects of 15 vs 60 second enamel acid conditioning on adhesion and morphology. Oper Dent Summer 1986;11(3):111-6.
Burnett LH J, Shinkai RS, de Paula Eduardo C. Tensile bond strength of a one-bottle adhesive system to indirect composites treated with Er:YAG laser, air abrasion, or fluoridricacid. Photomed Laser Surg 2004;22:351-6.
Moretto SG, Azambuja N, Jr., Arana-Chavez VE, Reis AF, Giannini M, Eduardo Cde P,et al.. Effects of ultramorphological changes on adhesion to lased dentin-Scanning electron microscopy and transmission electron microscopy analysis. Microsc Res Tech 2011;74(8):720-6.
Moezizadeh M, Ansari ZJ, Fard FM. Effect of surface treatment on micro shear bond strength of two indirect composites. J Conserv Dent 2012;15(3):228-32.
Carrieri TC, de Freitas PM, Navarro RS, Eduardo Cde P, Mori M. Adhesion of composite luting cement to Er:YAG-laser-treated dentin. Lasers in medical science 2007;22(3):165-70.
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