Effect of tribochemical treatments and silane reactivity on resin bonding to zirconia

Pilo, Raphael; Dimitriadi, Maria; Palaghia, Anna; Εliades, George

doi:10.1016/j.dental.2017.11.006

Cited by 43 publications

(44 citation statements)

References 35 publications

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“…Actual bonding is based on formation of interpenetrating polymer network to the interface of substrate and adhesive [53]. Composite primers can be mixtures of monomers and silanes, but the silanes have shown to be inactivated in the mixtures during the shelf-life time and the function of the silane component is questioned [54,55]. In the present study, the effect of composite primer or the adhesive resin on the bond strength of polycarbonate brackets was statistically insignificant.…”

Section: Discussionmentioning

confidence: 48%

Priming and bonding metal, ceramic and polycarbonate brackets

Kilponen

Varrela

Vallittu

2019

Biomaterial Investigations in Dentistry

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Objective: To investigate if primers can be used to modify bonding characteristics of orthodontic brackets. Materials and methods: Stainless steel, zirconia-alumina ceramic and polycarbonate brackets were bonded to enamel with and without universal and bracket material specific primers on the bracket base. Orthodontic adhesive cement (Transbond TM XT) was used for bonding. The primers in each group (n ¼ 10) were silane based (RelyX TM Ceramic Primer) and universal primer (Monobond Plus) for ceramic and metal brackets, and adhesive resin (Adper TM Scotchbond TM MultiPurpose Adhesive) and composite primer (GC Composite Primer) for polycarbonate brackets. Controls with no primer were used for all bracket types. Teeth with bonded brackets were stored in distilled water in 37 C for 7 days and debonded with static shear loading. Debonding forces were recorded and analyzed with ANOVA. Adhesive remnant index (ARI) was determined and enamel damage examined. Results: The bond strength without primers was 8.14 MPa (±1.49) for metal, 21.9 MPa (±3.55) for ceramic and 10.47 MPa (±2.11) for polycarbonate brackets (p < .05). Using silane as primer increased the bond strength of ceramic brackets significantly to 26.45 MPa (±5.00) (p < .05). ARIscores were mostly 2-3 (>50% of the adhesive left on the enamel after debonding), except with silane and ceramic brackets, ARI-score was mostly 0-1 (>50% of the adhesive left on the bracket). Debonding caused fractured enamel in four specimens with ceramic brackets. Conclusions: Bond strength was highest for ceramic brackets. Silane primer increased bond strength when used with ceramic brackets leading to enamel fractures, but otherwise primers had only minor effect on the bond strength values.

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Section: Discussionmentioning

confidence: 48%

Priming and bonding metal, ceramic and polycarbonate brackets

Kilponen

Varrela

Vallittu

2019

Biomaterial Investigations in Dentistry

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“…Due to the absence of any glassy matrix, zirconia is free from silica and, consequently, cannot be conditioned with conventional acid etching techniques, differently from glass-ceramics [119,122]. Several surface treatments aimed at getting a reliable bond to the substrate have been reported in the literature but to date this topic is still controversial [154][155][156][157][158][159][160][161][162][163]. Aggressive sandblasting (i.e.…”

Section: Surface Treatment and Cementationmentioning

confidence: 99%

“…The combination of mechanical and chemical treatments of zirconia surface was proved to offer the best results; particularly, the use of primers and adhesion promoting agents containing acidic monomers (10-MDP) can have a synergic effect with silane, improving the effectiveness of simplified adhesive techniques [155,[160][161][162][163].…”

Section: Surface Treatment and Cementationmentioning

confidence: 99%

Current status on lithium disilicate and zirconia: a narrative review

et al. 2019

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Background: The introduction of the new generation of particle-filled and high strength ceramics, hybrid composites and technopolymers in the last decade has offered an extensive palette of dental materials broadening the clinical indications in fixed prosthodontics, in the light of minimally invasive dentistry dictates. Moreover, last years have seen a dramatic increase in the patients' demand for non-metallic materials, sometimes induced by metal-phobia or alleged allergies. Therefore, the attention of scientific research has been progressively focusing on such materials, particularly on lithium disilicate and zirconia, in order to shed light on properties, indications and limitations of the new protagonists of the prosthetic scene. Methods: This article is aimed at providing a narrative review regarding the state-of-the-art in the field of these popular ceramic materials, as to their physical-chemical, mechanical and optical properties, as well as to the proper dental applications, by means of scientific literature analysis and with reference to the authors' clinical experience. Results: A huge amount of data, sometimes conflicting, is available today. Both in vitro and in vivo studies pointed out the outstanding peculiarities of lithium disilicate and zirconia: unparalleled optical and esthetic properties, together with high biocompatibility, high mechanical resistance, reduced thickness and favorable wear behavior have been increasingly orientating the clinicians' choice toward such ceramics. Conclusions: The noticeable properties and versatility make lithium disilicate and zirconia materials of choice for modern prosthetic dentistry, requiring high esthetic and mechanical performances combined with a minimal invasive approach, so that the utilization of such metal-free ceramics has become more and more widespread over time.

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“…Later, they were replaced by single-step prehydrolyzed silane solutions, silane primers with conventional or adhesive resin monomers, and silane containing universal dental adhesives. For many of these developments, though, questions have been raised regarding the stability and reactivity of the silane component [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Self-Etch Silane Primer: Reactivity and Bonding with a Lithium Disilicate Ceramic

et al. 2020

Self Cite

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The aim of the study was to evaluate the stability, reactivity, and bond strength with a lithium disilicate ceramic of a self-etch silane primer (Monobond Etch and Prime/MEP). The stability was evaluated by 1H-,31P-NMR spectroscopy (before/after aging), and the reactivity by micro MIR-FTIR spectroscopy on Ge surfaces (0, 1, 24 h) using a prehydrolyzed silane primer (Calibra Silane Coupling Agent/CLB), as a control. The effect of MEP vs. 5% HF-etching on ceramic roughness was assessed by optical profilometry. The shear bond strength (SBS) of a resin composite bonded to polished ceramic surfaces treated with MEP, HF without silane (HF+NS), HF+CLB, and HF+MEP (n = 20) was evaluated after storage in water (A: 37 °C/1 week, B: 5000×/5–55 °C and C: 100 °C/24 h). Aging did not affect the silanol groups of MEP, but only the phosphate co-monomer. Silanols were reactive forming siloxanes, but exhibited lower consumption rate than CLB. HF-etching induced significantly higher values than MEP, in all the roughness parameters tested (Sa, Sz, Sdr, Sc, Sv), with the greatest differences found in Sdr and Sv. For SBS, MEP was inferior to all treatments/storage conditions, except of HF+NS in A, where the values were similar. However, on a HF-etched substrate, MEP provided highest strength and reliability.

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Effect of tribochemical treatments and silane reactivity on resin bonding to zirconia

Cited by 43 publications

References 35 publications

Priming and bonding metal, ceramic and polycarbonate brackets

Priming and bonding metal, ceramic and polycarbonate brackets

Current status on lithium disilicate and zirconia: a narrative review

Self-Etch Silane Primer: Reactivity and Bonding with a Lithium Disilicate Ceramic

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