The Effect of Surface Treatments on the Bond Strength Between CAD/CAM Blocks and Composite Resin

Duzyol, Mustafa; Sağsöz, Ömer; Sağsöz, Nurdan Polat; Akgül, Nilgün; Yıldız, Mehmet

doi:10.1111/jopr.12322

Cited by 69 publications

(75 citation statements)

References 31 publications

(34 reference statements)

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“…9 Etching to composite resin has been shown to result in the most effective surface preparation and the highest bond strengths. 10 However, if handled or applied incorrectly in clinical situations, it also carries the highest patient risk due to possible hard or soft tissue damage. It also complicates the orthodontists' workflow with mandatory use of a rubber dam and adequate suction, which can be time consuming and possibly uncomfortable for patients.…”

Section: Discussionmentioning

confidence: 99%

Scanning electron microscope comparative surface evaluation of glazed-lithium disilicate ceramics under different irradiation settings of Nd:YAG and Er:YAG lasers

Viskić

Jokić

Jakovljević

et al. 2017

The Angle Orthodontist

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Section: Discussionmentioning

confidence: 99%

Scanning electron microscope comparative surface evaluation of glazed-lithium disilicate ceramics under different irradiation settings of Nd:YAG and Er:YAG lasers

Viskić

Jokić

Jakovljević

et al. 2017

The Angle Orthodontist

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“…The current gold standard for cementation of ceramics is the pretreatment of the ceramic with hydrofluoric acid (HF) etching, followed by application of a silane coupling agent and subsequently a resin cement [1,[5][6][7]. The HF acid etches ceramic surfaces containing at least some glassy component, leading to increased surface area for micromechanical interlocking to enhance bond strength [5,6,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effect of experimental resin cements containing thio-urethane oligomers on the durability of ceramic-composite bonded interfaces

Correr-Sobrinho

Costa

Fugolin

et al. 2019

Biomaterial Investigations in Dentistry

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Thio-urethane oligomers improve conversion and mechanical properties of resin cements. The objective of this study was to evaluate the effect of resin cements formulated with thio-urethane (TU) oligomers on microtensile bond strength (mTBS) of ceramics to composites subjected to thermal/mechanical cycling. Methods: BisGMA/UDMA/TEGDMA (50/30/20 wt%) containg 0 (control, EC) or 20 wt% aliphatic or aromatic thiourethane (HDDI and BDI, respectively) were mixed with CQ/amine (0.2/0.8 wt%) and 25 wt% 0.7um Ba glass. Rely X Ultimate (RU-3M ESPE) was used as the commercial control. The cements were sandwiched between ceramic (IPS e.max Press) and resin composite blocks (Filtek Supreme, 3 M-ESPE). Eight bonded blocks were produced per experimental group. Prior to bonding, ceramic surfaces were etched (20 s-10% HF) and silanized. Composite surfaces were treated with Single Bond Universal (3 M ESPE). Specimens were stored for 24 h in distilled water at 37 C, and then either tested immediately, or subjected to thermal (10,000, 5 C and 55 C) or mechanical cycling (300,000 cycles). Sticks (1 mm 2 , average of 25 sticks per block) were cut and tested for mTBS (1.0 mm/min). Data were analyzed with two-way ANOVA/Tukey's test (a ¼ 5%). Fracture surfaces were analyzed to determine failure modes. Results: The mTBS for HDDI and RU was significantly higher than BDI and EC cements. BDI led to significantly higher mTBS than EC after 24 h, Tc and Mf. mTBS decreased significantly after thermal/mechanical cycling for all groups. Failure modes were predominantly adhesive or mixed. Significance: The use of selected thio-urethane oligomers was able to increase the mTBS of composite-cement-ceramic specimens. Tc and Mf reduced mTBS for all resins cements.

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“…Regarding physical surface modifications of EMX, no other method has proved to be as efficient as etching with hydrofluoric acid (HF) [8][9][10][11][12][13]. HF acid etching increases the roughness [7], therefore the surface energy and wettability [14,15], and selectively dissolves the glassy matrix, exposing lithium disilicate crystals, which is essential to increase the micromechanical retention between restoration and resin cement [9,10,16].…”

Section: Introductionmentioning

confidence: 99%

Heat treatment-improved bond strength of resin cement to lithium disilicate dental glass-ceramic

Sundfeld

Correr‐Sobrinho

Pini

et al. 2016

Ceramics International

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This study investigated the influence of different hydrofluoric acid (HF) concentrations and heat treatments applied to a lithium disilicate dental glass-ceramic (EMX) on surface morphology and micro-shear bond strength (μSBS) to resin cement. Five HF concentrations (1%, 2.5%, 5%, 7.5% and 10%) and four different heat treatments applied before etching were assessed: 1. etching at room temperature with no previous heat treatment (control group); 2. HF stored at 70°C for 1 min applied to the ceramic surface at room temperature; 3. HF at room temperature applied after a hot air stream is applied perpendicularly to the ceramic surface for 1 min; 4. the combination of previously heated HF and heated EMX surface. The etching time was fixed for 20 s for all groups. Etched EMX specimens were analyzed on field-emission scanning electron microscope (FE-SEM) and the μSBS was carried out on a universal testing machine at a crosshead speed of 1 mm/min until fracture. For the control groups, FE-SEM images showed greater glassy matrix dissolution and higher μSBS for 7.5% and 10% HF concentrations. The previous heat treatments enhanced the glassy matrix dissolution more evidently for 1%, 2.5% and 5% and yielded increased μSBS values, which were not statistically different for 7.5% and 10% HF concentrations (control group). HF concentrations and previous heat treatments did show to have an influence on the etching/ bonding characteristics to lithium disilicate dental glass-ceramic.

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The Effect of Surface Treatments on the Bond Strength Between CAD/CAM Blocks and Composite Resin

Abstract: This study demonstrates that lithium disilicate porcelain blocks required etching for repairing with composite material. Surface treatments did not increase the bond strength in feldspar ceramic groups and reduced the bond strength in resin nano ceramic groups.

Cited by 69 publications

References 31 publications

Scanning electron microscope comparative surface evaluation of glazed-lithium disilicate ceramics under different irradiation settings of Nd:YAG and Er:YAG lasers

Scanning electron microscope comparative surface evaluation of glazed-lithium disilicate ceramics under different irradiation settings of Nd:YAG and Er:YAG lasers

Effect of experimental resin cements containing thio-urethane oligomers on the durability of ceramic-composite bonded interfaces

Heat treatment-improved bond strength of resin cement to lithium disilicate dental glass-ceramic

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