Ceramic strengthening by tuning the elastic moduli of resin-based luting agents

Spazzin, Aloísio Oro; Bacchi, Ataís; Alessandretti, Rodrigo; Santos, Mateus Berwaldt; Basso, G.R.; Griggs, Jason A.; Moraes, Rafael R.

doi:10.1016/j.dental.2017.01.002

Cited by 39 publications

(34 citation statements)

References 21 publications

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“…The materials were mechanically mixed using a centrifugal mixer (SpeedMixer DAC150; FlackTek, Landrum, SC, USA) at 1500 rpm during 20 s to produce homogeneous materials. 19 A light-cured RBLA (RelyX Veneer; 3M ESPE), widely employed for the adhesive cementation of CLV, was used as commercial reference. This luting agent presents 66 wt% fraction of inorganic filler content according to the manufacturer, 31 which is similar to the intermediate experimental luting agent tested.…”

Section: Formulation Of Experimental Resin-based Luting Agentsmentioning

confidence: 99%

“…Feldspar ceramic CAD/CAM blocks were milled under water cooling originating a cylindrical shape (12 mm in diameter x 18 mm in thickness). The cylinders were cut into 0.8-mm thickness discs (n=10/ group) 19 using a diamond saw (Diamond Blade 5" x 0.015" x 0.5", Lapmaster Wolters International, Mt. Prospect, USA) under water cooling (Isomet1000; Buehler, Lake Bluff, IL, USA), simulating monolayer restorations.…”

Section: Preparation Of the Feldspar Ceramic Specimensmentioning

confidence: 99%

“…Prospect, USA) under water cooling (Isomet1000; Buehler, Lake Bluff, IL, USA), simulating monolayer restorations. 19,32 All discs had both sides sequentially manually wet-polished using 600 and 1200-grit SiC papers (Norton SA, Guarulhos, SP, Brazil). The final dimensions of each specimen were measured using a digital caliper with 0.001-mm accuracy (Mitutoyo, Tokyo, Japan).…”

Section: Preparation Of the Feldspar Ceramic Specimensmentioning

confidence: 99%

“…Two layers of silane coupling agent (RelyX Ceramic Primer; 3M ESPE) were applied to ceramic discs using a microbrush (Cavibrush regular, FGM), and after 60 s, they were dried with compressed air for 30 s and a thin layer of adhesive Single Bond 2 (3M ESPE) was applied. 10,19 For each group, a standard volume of the RBLA, sufficient to cover the surface of the ceramic discs, was applied to the center, and two matrix strips were lightly pressed to extrude the luting agent and create a film thickness between 100 to 250 μm. 33,34,35 The ceramic discs were luted to resin composite discs with the different RBLAs tested.…”

Section: Preparation Of Simulated Dental Substratementioning

confidence: 99%

“…15,16 Studies also have suggested that the inorganic filler content of RBLAs can influence their adequate penetration into the grooves produced by ceramic surface treatment, acting on quality and durability of the adhesive interface. 6,17,18 Studies have investigated the influence of resin composite inorganic filler content on restoration brightness, 19 elastic moduli on ceramic strengthening, 19,20 shape of filler, and particle size on color change of resin composite restorations; 21,22,23,24,25,26 however, there is a lack of studies on the role of inorganic filler content of the luting agent on the final color of CLV.…”

Section: Introductionmentioning

confidence: 99%

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Inorganic filler content of resin-based luting agents and the color of ceramic veneers

et al. 2018

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The influence of inorganic filler content of resin-based luting agents (RBLAs) on color change (ΔE00), CIEL*a*b* (individual color coordinates), and translucency parameters (TP) of simulated ceramic laminate veneer (CLV) was investigated. RBLAs with low, intermediate, and high inorganic filler content (55%, 65%, and 75% mass fractions, respectively) were prepared. Feldspar ceramic (Vitablocs Mark II) specimens (1.2 mm × 0.8 mm, A1C shade) were bonded to simulated composite resin substrates (1.6 mm × 1.2 mm, A2D shade) using three experimental and a commercial (RelyX Veneer) RBLA (translucent shade). The ΔE00 was calculated by CIEDE2000 color difference metric under three conditions (before, immediately after, and 24 h after luting). The TP was calculated using CIEL*a*b* color coordinates measured over white and black backgrounds. Surface morphology of the RBLAs was analyzed. One-way and two-way analyses of variance with a post-hoc Tukey's test were used respectively to calculate TP, CIEL*a*b* coordinates, and ΔE00 (α= 0.05). Overall, the tested RBLAs presented clinically visible ∆E00 values under the three conditions evaluated. For all RBLAs, higher ∆E00 values were observed between measurements obtained before and immediately after luting. Different inorganic filler content did not significantly increase the opacity of the ceramic-luting agents-resin composite set. The variation in inorganic filler content did not influence significantly the TP of simulated CLV; although all of the experimental RBLAs tested yielded ∆E00 above the perceptibility threshold. The L*, a*, and b* individual color coordinates were cementation-dependent.

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Section: Formulation Of Experimental Resin-based Luting Agentsmentioning

confidence: 99%

Section: Preparation Of the Feldspar Ceramic Specimensmentioning

confidence: 99%

Section: Preparation Of the Feldspar Ceramic Specimensmentioning

confidence: 99%

Section: Preparation Of Simulated Dental Substratementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inorganic filler content of resin-based luting agents and the color of ceramic veneers

et al. 2018

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Strengthening ceramic surfaces with the use of resin cements based on thiourethane oligomers

Correr-Sobrinho

Costa

Fugolin

et al. 2020

J of Applied Polymer Sci

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This study evaluated the effects of thiourethane (TU) additives on the flexural strength (σf) and elastic modulus (Ef) of a resin cement, and on a possible strengthening of ceramic restorations.MethodsTwo TUs (ARomatic and ALiphatic) were added at 0 (control—EC) or 20 wt% to photopolymerizable resin cements. RelyX Ultimate (RU) was the commercial control. Flexural strength (σf) and elastic modulus (Ef) of the cements were measured in three‐point bending (n = 8). Biaxial flexural strength (σbf) of ceramic discs with and without cement layering were determined using a ball‐on‐ring setup. The σbf of cement‐coated specimens was calculated at positions z = 0 (ceramic surface, bonded interface) and z = −t2 (cement surface above ring). Data were analyzed with one‐way ANOVA/Tukey test (α = .05).Resultsσf of AR was significantly higher than for AL and RU, and Ef was lower. The Ef of RU was significantly higher than all other groups. At z = 0, all resin‐coated groups had higher σbf. The σbf of RU, AR, and AL were significantly higher than EC and unfilled resin group. At z = −t2, RU had significantly higher σbf.SignificanceAll resin cements were able to strengthen the ceramic, with the TU‐modified material presenting similar results to the commercial material.

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Resin cement coating reverts the machining damage on the flexural fatigue strength of lithium disilicate glass‐ceramic

et al. 2022

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This study evaluated the effect of resin cement coating with high and low viscosities on the flexural fatigue strength of machined lithium disilicate glass-ceramic. Discs (IPS e.max CAD; Ivoclar Vivadent) were prepared and divided according to the surface condition (machining [M]-CEREC inLab; and polishing [P]-laboratory procedures), resin cement coating (with or without), and cement viscosity (high [H] and low [L]). The ceramic bonding surface was etched/primed by a one-step primer application followed by resin cement application (Variolink N base + high or low viscosity catalyst; Ivoclar Vivadent). Biaxial flexural fatigue strength was evaluated on a pistonon-three-ball set by the step-test method (n = 15) (initial stress: 60 MPa; incremental steps: 20 MPa; 10,000 cycles/step, at 20 Hz). Weibull statistics were used for fatigue data. Contact angle, topographic, and fractographic analysis were also performed.Machining produced statistically lower contact angle than polishing and a significant detrimental effect on the fatigue behavior (σ 0 M = 247.2 [246.9-268.3]; σ 0 P = 337.4 [297.8-382.4]). Machined groups followed by resin cement coating (σ 0 MH = 297.9 [276.0-321.5]; σ 0 Ml = 301.2 [277.1-327.4]) behaved similarly to the polished and coated groups (σ 0 PH = 342.0 [308.9-378.5]; σ 0 PL = 357.3 [324.7-393.1]), irrespective of the cement viscosity. Therefore, cement coating has able to revert the detrimental effects of the machining on the fatigue strength of lithium disilicate glass-ceramic. High and low viscosity cements behaved similarly in the improvement of CAD-CAM lithium disilicate fatigue strength.

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Ceramic strengthening by tuning the elastic moduli of resin-based luting agents

Cited by 39 publications

References 21 publications

Inorganic filler content of resin-based luting agents and the color of ceramic veneers

Inorganic filler content of resin-based luting agents and the color of ceramic veneers

Strengthening ceramic surfaces with the use of resin cements based on thiourethane oligomers

Resin cement coating reverts the machining damage on the flexural fatigue strength of lithium disilicate glass‐ceramic

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