Effect of Surface Modification Methods of Zirconia Ceramic on the Shear Bond Strength of Ceramic Bracket

The aim of this study was to evaluate the effect of surface treatment and storage time on immediate repair bond durability of methacrylate- and ormocer-based bulk fill composites. In total, 265 discs were divided into 32 groups (n = 8/group) according to: (1) Material: X-tra fil and Admira Fusion X-tra; (2) Surface treatment: oxygen inhibition; matrix; Futurabond M+; Silane/Futurabond M+; Admira Bond; Silane/Admira Bond; ceramic repair system; and Silane/Cimara bond; and (3) Storage time: 24 h and 6 months. Each disc received three micro-cylinders from the same material. Specimens were subjected to micro-shear bond strength testing either at 24 h or 6 months. Data were analyzed using ANOVA/Tukey’s test/Student t-test (p = 0.05). All experimental factors had significant effect on bond strength (p < 0.0001). Drop in bond strength was noticed in both materials after six months (p < 0.05), except for Admira Fusion X-tra treated with silane/cimara adhesive (p = 0.860). Both materials showed insignificant values with Admira bond either at 24 h or 6 months (p = 0.275 and p = 0.060, respectively). For other treatments, X-tra fil showed significantly higher values at 24 h and 6 months (p < 0.05). Ceramic repair system can be used to immediately repair both methacrylate- and ormocer-based composites.

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Effect of Surface Conditioning Methods on Shear Bond Strength of Resin Luting Cement to All-ceramic Coping Material: An In Vitro Study

International Journal of Prosthodontics and Restorative Dentistry ◽

10.5005/jp-journals-10019-1226 ◽

2019 ◽

Vol 9 (1) ◽

pp. 18-24

Author(s):

Rupal J Shah ◽

Pratik D Acharya ◽

Sejal A Mehta ◽

Dipak Solanki

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

In Vitro Study ◽

Vitro Study ◽

Surface Conditioning ◽

Luting Cement ◽

All Ceramic ◽

Effect Of Surface

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Effects of Universal Adhesive on Shear Bond Strength of Resin Cement to Zirconia Ceramic with Different Surface Treatments

International Journal of Dentistry ◽

10.1155/2021/5517382 ◽

2021 ◽

Vol 2021 ◽

pp. 1-6

Author(s):

Zohreh Moradi ◽

Farnoosh Akbari ◽

Sara Valizadeh

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Testing Machine ◽

In Vitro Study ◽

Surface Treatments ◽

Resin Cement ◽

Zirconia Ceramic ◽

Single Bond ◽

Universal Adhesive

Aim. This study aimed to assess shear bond strength (SBS) of resin cement to zirconia ceramic with different surface treatments by using Single Bond Universal. Methods. In this in vitro study, 50 zirconia discs (2 × 6 mm) were divided into 5 groups of (I) sandblasting with silica-coated alumina (CoJet) + silane + Single Bond 2, (II) sandblasting with CoJet + Single Bond Universal, (III) sandblasting with alumina + Single Bond Universal, (IV) sandblasting with alumina + Z-Prime Plus, and (V) Single Bond Universal with no surface treatment. Resin cement was applied in plastic tubes (3 × 5 mm2), and after 10,000 thermal cycles, the SBS was measured by a universal testing machine. The mode of failure was determined under a stereomicroscope at × 40 magnification. Data were analyzed using one-way ANOVA. Results. The maximum (6.56 ± 4.29 MPa) and minimum (1.94 ± 1.96 MPa) SBS values were noted in groups III and I, respectively. Group III had the highest frequency of mixed failure (60%). Group V had the maximum frequency of adhesive failure (100%). Conclusion. Single Bond Universal + sandblasting with alumina or silica-coated alumina particles is an acceptable method to provide a strong SBS between resin cement and zirconia.

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Repair Bond Strength of Composite to Zirconia Ceramic Using Two Types of Zirconia Primers

Frontiers in Dentistry ◽

10.18502/fid.v16i5.2279 ◽

2020 ◽

Author(s):

Hoseinali Mahgoli ◽

Mahnaz Arshad ◽

Kamran Rasouli ◽

Ali Akbar Sobati ◽

Ahmad Reza Shamshiri

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

Composite Resin ◽

Zirconia Ceramic ◽

Adhesive Failure ◽

Cohesive Failure ◽

Simultaneous Application ◽

All Ceramic ◽

The Mean

Objectives: This study aimed to assess the effect of application of two types of zirconia primers on repair bond strength of composite to zirconia ceramic. Materials and Methods: In this in vitro, experimental study, 60 zirconia blocks were divided into five groups and subjected to the application of Z-Prime Plus (ZPP), Monobond Plus (MBP), Porcelain Bonding Resin (PBR), ZPP followed by PBR (ZPP+PBR) and MBP followed by PBR (MBP+PBR). They were then bonded to Z100 composite. The samples were then immersed in water at 37°C for 24 hours, thermocycled for 1000 cycles between 5-55°C and subjected to shear bond strength (SBS) test. The mode of failure was determined under a stereomicroscope and a scanning electron microscope (SEM). Results: The mean bond strength was the highest in ZPP+PBR group followed by MBP+PBR, ZPP, PBR and MBP group (22.29±8.86, 15.75±2.81, 12.02±3.24, 3.60±2.92 and 2.92±1.78 MPa, respectively). The effects of type of zirconia primer and use/no use of PBR on SBS were significant (P<0.05). The frequency of adhesive failure in MBP and PBR groups was significantly higher than that in MBP+PBR and ZPP+PBR groups (P<0.05). The cohesive failure was significantly more frequent in ZPP+PBR group than in ZPP, MBP and PBR groups (P<0.05). Conclusion: Simultaneous application of zirconia primer and PBR is the most efficient technique for repair of all-ceramic zirconia restorations with composite resin.

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