Effects of silica-coating on surface topography and bond strength of porcelain fused to CAD/CAM pure titanium

SUMMARY Objective: This study evaluated the shear bond strength (SBS) of pretreated monolithic zirconia surfaces bonded to human dentin following immediate dentin sealing (IDS) using two different self-adhesive resin luting agents. Methods and Materials: Sixty intact human third molars were collected, stored, sectioned appropriately, and molded according to ISO 29022:2013, resulting in 120 dentin specimens. Ceramic cylindrical specimens were fabricated using CAD/CAM technology and sintered as recommended (final bonding area A=2.56 mm2). Specimens were randomly assigned to eight groups (15≥n≥14) depending on dentin conditioning method (IDS or delayed dentin sealing [DDS]), zirconia surface pretreatment (airborne particle abrasion [APA] with 50 μm Al2O3 particles at 3 bar for 10 seconds or tribochemical silica coating [TBC] with 30 μm CoJet particles at 2.8 bar for 10 seconds), and adhesive luting agent type (Panavia F2.0 [PAN] or PermaCem Dual Smartmix [PER]). Bonded specimens were water-stored (37°C, 24 hours) and subjected to SBS testing (50-kgF load cell, 1 mm/min). Fracture type was evaluated with stereomicroscopy. Data (MPa) were statistically analyzed using three-way analysis of variance (α=0.05). Results: All factors significantly affected SBS values (p<0.001). Dentin conditioning method presented the greatest effect. Mean SBS values ranged from 12.603 MPa (PER-APA-DDS) to 40.704 MPa (PER-TBC-IDS). Based on the fracture type, adhesive failures at the luting agent–zirconia interface were the least common. Conclusion: Bonding strategies for monolithic zirconia restorations could potentially benefit from IDS, regardless of the adhesive luting agent system used.

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FTIR and SEM of a novel chemical conditioning on the zirconia intaglio surface.

Journal Of Oral Research ◽

10.17126/joralres.2019.085 ◽

2019 ◽

Vol S (1) ◽

pp. 19-23

Author(s):

Ma’an M. Nayif ◽

◽

Nadia H. Hasan ◽

Amer A. Taqa ◽

◽

...

Keyword(s):

Hydrogen Peroxide ◽

Citric Acid ◽

Bond Strength ◽

Ftir Spectroscopy ◽

Surface Topography ◽

Sem Analysis ◽

Control Group ◽

Luting Cement ◽

Cad Cam ◽

And Control

Objectives: The aim of this study was to evaluate chemical and topographical changes in the intaglio zirconia surface induced by chemical conditioning solutions using FTIR and SEM analysis. Material and method: twelve plates for each FTIR and SEM tests from each zirconia materials (UPCERA HT White, BruxZir® Solid Zirconia, and Copran® Multilayer), milled by a Yenadent CAD/CAM system, sintered and divided randomly into a three groups. A different surface conditioning was applied to the intaglio surface of each group: 30% hydrogen peroxide, 30% citric acid and control group. Result and discussion: by using of the FTIR spectroscopy, an evidence of new bands formation appeared at 1637cm-1 and 3352cm-1 due to the high oxidizing effect of hydrogen peroxide, and at 630cm-1 and 1663cm-1 due to the chelating action of citric acid, and simultaneously, SEM assessment of the surface topography took place, to identify lines, scratches, or surface dissociation that appeared on the intaglio zirconia surface after conditioning. Conclusion: such analysis provides an enhancement of new convenient, less expensive, reliable trials to improve micro-bond strength of luting cement to Y-TZP ceramics.

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Evaluation of bond strength of dual resin cements to CAD/CAM-created lithium disilicate ceramic

Minerva Stomatologica ◽

10.23736/s0026-4970.19.04291-2 ◽

2020 ◽

Vol 69 (3) ◽

Author(s):

Felipe Sczepanski ◽

Cláudia R. Brunnquell ◽

Sandrine B. Berger ◽

Eloisa A. Paloco ◽

Murilo B. Lopes ◽

...

Keyword(s):

Bond Strength ◽

Lithium Disilicate ◽

Resin Cements ◽

Cad Cam

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Effect of Silica Coating with Different Luting Cements on the Bond Strength of a Zirconia Based Ceramic

Egyptian Dental Journal ◽

10.21608/edj.2018.79248 ◽

2018 ◽

Vol 64 (4) ◽

pp. 3741-3745

Author(s):

Ahmad El-Kouedi ◽

Mohammed Abd El-Aziz

Keyword(s):

Bond Strength ◽

Silica Coating ◽

Luting Cements

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Assessment of Er, Cr: YSGG Laser Surface Treatment and Self-Adhesive Resin Cements Formulae on Microtensile Bond Strength to Various CAD/CAM Ceramic Esthetic

Egyptian Dental Journal ◽

10.21608/edj.2018.77459 ◽

2018 ◽

Vol 64 (2) ◽

pp. 1459-1472 ◽

Cited By ~ 1

Author(s):

Omaima Ghallab ◽

Marwa Wahsh ◽

Mohamed Kamel

Keyword(s):

Bond Strength ◽

Surface Treatment ◽

Laser Surface ◽

Laser Surface Treatment ◽

Microtensile Bond Strength ◽

Resin Cements ◽

Adhesive Resin ◽

Ysgg Laser ◽

Cad Cam

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Do Chemical-Based Bonding Techniques Affect the Bond Strength Stability to Cubic Zirconia?

Materials ◽

10.3390/ma14143920 ◽

2021 ◽

Vol 14 (14) ◽

pp. 3920

Author(s):

Allegra Comba ◽

Andrea Baldi ◽

Riccardo Michelotto Tempesta ◽

Massimo Carossa ◽

Letizia Perrone ◽

...

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Artificial Aging ◽

Silica Coating ◽

Strength Test ◽

Zirconia Sample ◽

Luting Cement ◽

Bonferroni Test ◽

Bonding Systems ◽

Composite Cylinders

This study evaluated the effectiveness of chemical-based adhesive techniques on promoting immediate and aged bond strength between zirconia and luting cement. A total of 128 discs of zirconia were divided into 4 groups (n = 32) according to the adhesive treatment: tribochemical silica-coating followed by silane (Silane Primer, Kerr) and bonding (Optibond FL, Kerr), Signum Zirconia Bond (Hereaus), Z-Prime Plus (Bisco), and All-Bond Universal (Bisco). Composite cylinders were cemented on the zirconia sample with Duo-Link Universal (Bisco). Eight specimens per group were subjected to 10,000 thermocycles and subsequently bond strength was tested with shear-bond strength test. ANOVA test showed that artificial aging significantly affected the bond strength to zirconia. Bonferroni test highlighted a significant influence of adhesive treatment (Signum) on bond strength after thermocycling. It was concluded that 10-MDP-based bonding systems showed no improvement in initial bond strength compared with tribochemical treatment. All chemical bonding techniques tested in this study were influenced by thermocycling.

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