Influence of Shear Bonding Strength of Lithium Disilicate to Enamel under Different Surface Treatments

The aim of this study was to investigate the effect of surface treatments on bonding strength of two kinds of zirconia to three kinds of resin cements. After thermal cycling, the shear bonding strength of both zirconia decreased in all the resin cements. The bonding strengths of two resin cements in which primer contains silane dramatically decreased after the thermal-cycling (p<0.01). Although the surface roughness of both zirconia sandblasted by 125-%m SiC was quite larger than that by 70-%m alumina (p<0.05), there were no significant differences in the bonding strength of the resin cement to both zirconia sandblasted by 70-%m Al2O3 and 125-%m SiC (p>0.05).

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Effect of Surface Treatments on Bonding Strength of Zirconia to Dental Cements

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.396-398.575 ◽

2008 ◽

Vol 396-398 ◽

pp. 575-578

Author(s):

Makiko Hashiguchi ◽

Hideo Sato ◽

Y. Nishi ◽

Seiji Ban ◽

Kristoffer Krnel ◽

...

Keyword(s):

Thermal Cycling ◽

Bonding Strength ◽

Surface Treatments ◽

Alumina Coating ◽

Significant Difference ◽

Shear Bonding Strength ◽

Effect Of Surface

The aim of this study was to investigate the effect of surface treatments on bonding strength of two kinds of zirconia to two kinds of dental cements. After thermal cycling, the shear bonding strength of both zirconia with alumina coating increased in both cements. The shear bonding strength of both zirconia with sandblasting decrease in Fuji plus after thermal cycling (p<0.05). There was no significant difference between NANOZR and Y-TZP (p>0.05). The bonding strengths of NANOZR with the alumina coating were higher than those with sandblasting after thermal-cycling (p<0.05).

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Effect of surface treatments on titanium alloy bonding to lithium disilicate glass-ceramics

Journal of Prosthetic Dentistry ◽

10.1016/j.prosdent.2016.04.023 ◽

2016 ◽

Vol 116 (5) ◽

pp. 797-802 ◽

Cited By ~ 7

Author(s):

Nuno Guilherme ◽

Chandur Wadhwani ◽

Cheng Zheng ◽

Kwok-Hung Chung

Keyword(s):

Titanium Alloy ◽

Glass Ceramics ◽

Lithium Disilicate ◽

Surface Treatments ◽

Effect Of Surface

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Bonding Strength of Ceromer with Direct Laser Sintered, Ni-Cr-Based, and ZrO2 Metal Infrastructures After Er:YAG, Nd:YAG, and Ho:YAG Laser Surface Treatments—A Comparative In Vitro Study

Photomedicine and Laser Surgery ◽

10.1089/pho.2016.4129 ◽

2016 ◽

Vol 34 (8) ◽

pp. 355-362 ◽

Cited By ~ 5

Author(s):

Oguzhan Gorler ◽

Ali Kemal Ozdemir

Keyword(s):

Bonding Strength ◽

In Vitro Study ◽

Surface Treatments ◽

Laser Surface ◽

Vitro Study ◽

Ho:Yag Laser ◽

Direct Laser

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Effects of Different Polishing Protocols on Lithium Disilicate Ceramics

Brazilian Dental Journal ◽

10.1590/0103-6440201300370 ◽

2015 ◽

Vol 26 (5) ◽

pp. 478-483 ◽

Cited By ~ 3

Author(s):

Tânia Mara da Silva ◽

Ana Carolina Rodrigues Danzi Salvia ◽

Rodrigo Furtado de Carvalho ◽

Eduardo Galera da Silva ◽

Clóvis Pagani

Keyword(s):

Surface Roughness ◽

Lithium Disilicate ◽

Sem Analysis ◽

Surface Treatments ◽

Control Group ◽

Morphological Pattern ◽

Tukey Test ◽

Polishing Procedures ◽

Diamond Paste

Abstract: The aim of this study was to evaluate the effect of different polishing protocols on surface roughness and morphology of lithium disilicate ceramics (IPS e.max CAD). Fifty ceramic bars (2.0x3.0x2.5 mm) were produced and randomly divided into five groups (n=10), according to surface treatments: C: Control; Cer: Ceramaster (60 s); CW: cloth wheel with large-grit diamond (30 s) + cloth wheel with fine-grit diamond paste (30 s); E: grey Exa-Cerapol (20 s) + pink Exa-Cerapol (20 s) + Cerapol Super (20 s); F: Felt wheel with large-grit diamond paste (30 s) + Felt wheel with fine-grit diamond paste (30 s). The samples were evaluated quantitatively for surface roughness (Ra) and qualitatively by SEM, at different moments: initial (prior to roughening), after roughening and after polishing procedures. Ra means were submitted to two-way ANOVA and Tukey test (p<0.05). After the different polishing protocols, no statistically significant differences were observed between the Cer and E groups (p=0.6347), E and CW groups (p=0.1366), and CW and FW groups (p=0.5433). Comparing different stages in the same group, it was possible to observe that CW (p<0.0001) and FW groups (p<0.0001) showed significant differences. SEM analysis revealed that both Cer and E groups exhibited a surface morphological pattern similar to that of control group. All polishing systems were effective in reducing the surface roughness of the studied ceramic type.

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Effect of Temperature on the Interfacial Bonding Strength between PVB and Glass from RT to -50 °C

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.492.61 ◽

2011 ◽

Vol 492 ◽

pp. 61-65 ◽

Cited By ~ 2

Author(s):

Yuan Tian ◽

Yi Wang Bao ◽

De Tian Wan ◽

Xiu Fang Wang ◽

Zhi Ming Han

Keyword(s):

Bonding Strength ◽

Room Temperature ◽

Testing Temperature ◽

Interfacial Bonding ◽

Effect Of Temperature ◽

Laminated Glass ◽

Interfacial Bonding Strength ◽

Cooling Speed ◽

Bonding Method ◽

Shear Bonding Strength

Laminated glass and photovoltaic laminated glass are widely used in architecture. The interfacial bonding strengths between poly(vinyl butyral) (PVB) and glass were investigated by the cross-bonding method from room temperature to -50 °C. The loading speed was 5 mm/min, and the cooling speed was about 0.5 °C/min. The testing sample was hold at each temperature for half an hour. It was revealed that the testing temperature had great effect on the bonding strength. At room temperature, the tensile bonding strength was 11.49 MPa and the shear bonding strength was 6.61 MPa. With the temperature decreased from RT to -50 °C, the tensile bonding strength was decreased by 66.81%, but the shear bonding strength was increased by 212.16%. From RT to -30 °C, the change rates of the tensile and shear bonding strength bonding strength were 65.57% and 172.68% respectively, only 3.61% and 14.48% from -30 °C to -50 °C. The mechanism for the bonding strength depended on testing temperatures from RT to -50 °C was also discussed.

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Secondary Bonding Strength Evaluation of FRP Laminated Plates

Materials Science Forum ◽

10.4028/www.scientific.net/msf.951.51 ◽

2019 ◽

Vol 951 ◽

pp. 51-55

Author(s):

Guang Min Luo ◽

Jia Cheng Li ◽

Tse Yu Lin ◽

Yih Lin Cheng

Keyword(s):

Bonding Strength ◽

Unsaturated Polyester ◽

Surface Active Agent ◽

Active Agent ◽

Laminated Plates ◽

Surface Treatments ◽

Experimental Results ◽

Surface Sizing ◽

Surface Active ◽

Secondary Bonding

We focused on common secondary bonding method that usually applied on manufacturing of FRP yacht, and discussed the secondary bonding strength according to experimental results. The hulls of FRP yacht is made using VARTM, and then the secondary bonding procedures are used to reinforce the hull structures using hand lay-up. The different kinds of resin and different surface treatment methods were considered in this study. Generally, the resin manufacturers always suggested that the secondary bonding procedure can be performed directly after the separation media is released. Therefore, we discussed the bonding strength of different kind of surface treatments, likes grinding, surface sizing, surface-active etc. Finally, the experimental results shown that: 1. The effect of surface sizing is obviously poor than the other surface treatments; 2. The surface-active agent plays a good joint strength on unsaturated polyester resin; 3. Whether the secondary bonding surface is grinded or not, the bonding strengths are not much different.

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Effect of Thermocycling, Surface Treatments and Microstructure on the Optical Properties and Roughness of CAD-CAM and Heat-Pressed Glass Ceramics

Materials ◽

10.3390/ma13020381 ◽

2020 ◽

Vol 13 (2) ◽

pp. 381 ◽

Cited By ~ 6

Author(s):

Roxana-Diana Vasiliu ◽

Sorin Daniel Porojan ◽

Mihaela Ionela Bîrdeanu ◽

Liliana Porojan

Keyword(s):

Surface Roughness ◽

Optical Properties ◽

Glass Ceramic ◽

Glass Ceramics ◽

Lithium Disilicate ◽

Ceramic Materials ◽

Surface Treatments ◽

Lithium Silicate ◽

Before And After ◽

Cad Cam

Dental ceramic restorations are widely spread nowadays due to their aesthetics and biocompatibility. In time, the colour and structure of these ceramic materials can be altered by aging processes. How does artificial aging affect the optical and surface roughness of ceramics? This study aims to assess the effect of thermocycling, surface treatments and microstructure upon translucency, opalescence and surface roughness on CAD-CAM and heat-pressed glass-ceramic. Forty-eight samples (1.5 mm thickness) were fabricated from six types of A2 MT ceramic: heat-pressed and milled glass-ceramic (feldspathic, lithium disilicate and zirconia reinforced lithium silicate). The samples were obtained respecting the manufacturer’s instructions. The resulted surfaces (n = 96) were half glazed and half polished. The samples were subjected to thermocycling (10,000 cycles) and roughness values (Ra and Rz), colour coordinates (L*, a*, b*) and microstructural analyses were assessed before and after thermocycling. Translucency (TP) and opalescence (OP) were calculated. Values were statistically analysed using ANOVA test (one way). TP and OP values were significantly different between heat-pressed and milled ceramics before and also after thermocycling (p < 0.001). Surface treatments (glazing and polishing) had a significant effect on TP and OP and surface roughness (p < 0.05). The heat-pressed and milled zirconia reinforced lithium silicate glass-ceramic experienced a loss in TP and OP. Ra and Rz increased for the glazed samples, TP and OP decreased for all the samples after thermocycling. Microstructural analyse revealed that glazed surfaces were more affected by the thermocycling and especially for the zirconia reinforced lithium silicate ceramic. Optical properties and surface roughness of the chosen ceramic materials were affected by thermocycling, surface treatments and microstructural differences. The least affected of the ceramics was the lithium disilicate ceramic heat-pressed polished and glazed.

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