Effect of Adhesive Resin as a Modeling Liquid on Elution of Resin Composite Restorations

Abstract

Background. Adhesive resin is increasingly used as a modeling liquid for composite. Based on previous studies, elution of some components from the composite mass negatively affects the oral tissues. Since few studies have focused on the effect of adhesive resin on composite mass, this study aimed to investigate the effect of dental adhesion factors as modeling liquid on the elution of substances from composite restorations. Materials and Methods. Sixty-four composite specimens (6 × 2 mm diameter × height) were prepared in four groups (n = 16) by using a Teflon ring. Composite mass was incrementally applied in four layers (0.5 mm). The control group contained no material between the layers, but other groups had one of the single bond, SE bond, and wetting resin adhesives between the layers. Specimens were immersed in distilled water and methanol. The amount of released triethylene glycol dimethacrylate (TEGDMA), urethane dimethacrylate (UDMA), and camphorquinone (CQ) was monitored by gas chromatography after 24 hours and 7 days. Data were analyzed with SPSS software through Kruskal–Wallis and Mann–Whitney U tests (α = 0.05). Results. The highest rate of released TEGDMA comonomer was seen in the wetting resin group in the water medium. The highest rate of released UDMA monomer was seen in SE bond and wetting resin groups in the methanol medium after 24 hours. The highest amount of released CQ in the methanol medium was observed in the SE bond group after 7 days. Conclusion. Single bond adhesive can be used as modeling liquid since it has no significant effect on the elution of components from composite mass. Whereas, wetting resin and SE bond adhesives are not suitable to be used as modeling liquid due to the high amounts of released TEGDMA and UDMA.

Modeling Liquids and Resin-Based Dental Composite Materials—A Scoping Review

“…Eight papers used seven modeling liquids for restorative purposes, with Composite Wetting Resin (Ultradent, South Jordan, UT, USA), Modeling Liquid (GC Corp., Tokyo, Japan), and Bisco Modeling Resin (Bisco, Schaumburg, IL, USA) being the ones most investigated [ 14 , 15 , 16 , 19 , 25 , 26 , 27 , 28 ].…”

“…The shape of the specimens was dependent on the test performed. The disc was the most used shape to test color stability [ 10 , 13 , 21 , 22 , 27 , 30 ], monomer elution [ 10 , 27 , 30 ], roughness [ 15 , 26 , 28 ], micro-hardness [ 15 , 16 , 26 , 28 ], and water uptake [ 10 , 30 ]. Other shapes used for testing were rectangular solid shapes [ 10 , 16 ] and cones [ 19 ].…”

“…Thirteen papers waited for 24 h to complete composite conversion [ 10 , 14 , 15 , 16 , 19 , 20 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ], while four studies performed tests immediately after the specimen’s preparation [ 13 , 21 , 22 , 30 ].…”

Polyacrylic Acid Nanoplatforms: Antimicrobial, Tissue Engineering, and Cancer Theranostic Applications

“…Because of its outstanding properties and high water absorption, poly (acrylic acid), in either linear or cross-linked form, is widely used in several kinds of fake tears [ 26 , 27 ]. New progresses in science, bioinformatics and nanomedicine have important influence on human healthiness [ 28 , 29 , 30 , 31 , 32 , 33 ]. Nanotechnology is the manipulation of matter on a near-atomic scale to produce new structures, materials and devices [ 34 , 35 , 36 ].…”

Drug delivery and anticancer activity of biosynthesised mesoporous Fe2O3nanoparticles

“…Therefore, research and development of new cancer treatment methods are needed [12][13][14]. New developments in science and technology have significant impact on human health [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] and life [30][31][32][33][34][35][36].…”