Microtensile bond strength of CAD/CAM-fabricated polymer-ceramics to different adhesive resin cements

Sadighpour, Leyla; Geramipanah, Farideh; Ghasri, Zahra; Neshatian, Mehrnoosh

doi:10.5395/rde.2018.43.e40

Cited by 9 publications

(8 citation statements)

References 25 publications

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“…Despite the remarkable optical properties and natural tooth-like appearance of the ceramics, their potential disadvantages include abrasion of the opposing dentition because of their high hardness and risk of brittle fracture and chipping [ 9 , 10 ]. In contrast, resin composites cause less wear to the opposing dentition, are less brittle, are easier to repair and are more fracture resistant [ 11 – 13 ]. Nonetheless, their color stability is inferior, and the material wears down more quickly than ceramics [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of different surface treatments on resin-matrix CAD/CAM ceramics bonding to dentin: in vitro study

et al. 2022

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Background Evaluating the effect of different surface treatment methods on the micro-tensile bond strength (µTBS) of two different resin-matrix computer-aided design/computer-aided manufacturing (CAD/CAM) ceramics (RMCs). Methods A standardized inlay preparations were performed on 100 intact maxillary premolars. According to the type of the restorative material, the teeth were randomly divided into two equally sized groups (n = 50): (polymer-infiltrated ceramic (Vita Enamic) and resin-based composites (Lava Ultimate)). The inlays were fabricated using CAD/CAM technology. In each group, the specimens were randomly assigned to five subgroups (n = 10) according to the surface treatment method: group 1 used was the control group (no surface treatment); group 2, was treated with air abrasion with 50 μm Al2O3 (A) and universal adhesive (UA); group 3, was treated with air abrasion with 50 μm Al2O3 (A) and silane coupling agent (S); group 4, was treated with hydrofluoric acid (HF) and universal adhesive (UA) and group 5, was treated with Hydrofluoric acid (HF) + silane coupling agent (S). The inlays were then cemented to their respective preparations using dual-cure self-adhesive resin cement (RelyX U200, 3 M ESPE) according to the manufacturer’s instructions. The µTBS test was conducted in all groups, and stereomicroscope and scanning electron microscope were used to inspect the failure mode. The data were statistically analyzed using a two-way analysis of variance (ANOVA) and Tukey’s post-hoc multiple comparison tests at a significance level of p < 0.05. Results Surface treatments significantly increased the µTBS of the materials compared to the control group (p < 0.05). For CAD/CAM RBCs, the µTBS value highest in group 2 whereas, for PICN, the µTBS value was highest in group 3. Cohesive failure of CAD/CAM restorative material was the most predominant mode of failure in all treated groups, whereas adhesive failure at restoration-cement interface was the most predominant failure mode in the control group. Conclusion Surface treatments increase the µTBS of resin-matrix CAD/CAM ceramics to tooth structure. Air abrasion followed by universal adhesive and hydrofluoric acid followed by silane application appears to be the best strategies for optimizing the bond strength of CAD/CAM RBCs and PICN respectively.

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Section: Introductionmentioning

confidence: 99%

Effect of different surface treatments on resin-matrix CAD/CAM ceramics bonding to dentin: in vitro study

et al. 2022

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“…This result agreement with Cinar et al (2019) 18 they found the highest SBS for Lava ultimate (18.73±1.91 MPa) was obtained in group sandblast + silane with self-adhesive resin cement. Also the Sadighpour et al (2018) 19 they showed self-adhesive resin cement (RelyX U200) higher than multistep adhesive resin cement (Panavia).…”

Section: Discussionmentioning

confidence: 96%

Influence of Micromechanical and Chemical Conditioning on Bonding to Machinable Composite

2021

Mansoura Journal of Dentistry

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Purpose: To evaluate the influence of micromechanical and chemical conditioning on bonding to hybrid ceramic (machinable composite MZ100 blocks). Materials and methods: A total of 64 machinable composite discs (MZ100 paradigm) were fabricated using CAD/CAM technology according to the desired dimensions (10 mm width and 4 mm thickness). The discs were divided in two main groups (n=32): as milled group (AM) and sandblast group (SB) used Al 2 O 3 (50-μm). Each main group was subdivided into two subgroups (n=16) according to method of chemical conditioning: conventional silane (SI) and multipurpose primer (MP). Composite resin discs were fabricated according to desired dimensions (4.5 mm width x 3.5 mm thickness). Surface treated MZ100 discs were bonded to the composite resin discs according to the types of adhesive resin cements, multistep adhesive resin cements or self-adhesive resin cements. One hour after bonding, all specimens were stored in water bath at 37°C for 5 months followed by thermocycling for 10,000 cycles. Following artificial aging all bonded specimens underwent shear bond strength testing using universal Instron testing machine. Assessment of the debonding failure mode was done by Binocular optical microscope and SEM. Statistical analysis was performed using a 3-Way ANOVAs.Results: In Three-Way ANOVAs test revealed statistically significant different in SBS between (SB) and (AM) groups {p=0.000} and between different resin cements used {p=0.006}. While there, was no statistically significant different when used different chemical conditioning methods {p=0.132}. Conclusions: Sandblasting of the MZ100 paradigm block surface is recommended when luting with the self-adhesive or multistep adhesive resin cements. The self-adhesive performed SBS values compared to multistep adhesive resin cement in all groups. The combination between micromechanical and chemical conditioning of MZ100 paradigm block surface are recommended over the chemical conditioning alone.

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“…In the present laboratory study, three types of ceramic [21][22][23] and three types of resin cements 24) were used. These materials are commonly used for prosthetic rehabilitation of anterior teeth.…”

Section: Discussionmentioning

confidence: 99%

Digital image analysis of fluorescence of ceramic veneers with different ceramic materials and resin cements

Zhang

2022

Dent. Mater. J.

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The objective of this study was to analyze the effect of the type of ceramics and resin cements on the fluorescence of ceramic veneers under the 405 nm UV-light by digital imaging. One hundred and ninety-two veneers were fabricated using three types of ceramics (IPS e.max CAD, IPS Empress CAD, and Zenostar). Eight pieces of substrates were made of resin-nano-ceramic (Lava Ultimate). The level of fluorescence for each sample cemented with the substrate using three kinds of resin cements (RelyX U200, Variolink N, and Choice 2) was analyzed by using histogram data of luminosity from Adobe Photoshop software. Furthermore, the fluorescence values were evaluated by two-way ANOVA and Tukey's test. The highest fluorescence values were observed for the IPS e.max CAD cemented with Choice 2 cement, followed by IPS Empress CAD, and Zenostar the lowest. The final fluorescence intensity of ceramic veneer is affected by ceramic materials and resin cements.

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Microtensile bond strength of CAD/CAM-fabricated polymer-ceramics to different adhesive resin cements

Cited by 9 publications

References 25 publications

Effect of different surface treatments on resin-matrix CAD/CAM ceramics bonding to dentin: in vitro study

Effect of different surface treatments on resin-matrix CAD/CAM ceramics bonding to dentin: in vitro study

Influence of Micromechanical and Chemical Conditioning on Bonding to Machinable Composite

Digital image analysis of fluorescence of ceramic veneers with different ceramic materials and resin cements

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