The influence of Y-TZP surface treatment on topography and ceramic/resin cement interfacial fracture toughness

Paes, Paula Nunes Guimarães; Bastian, Fernando Luíz; Jardim, P.M.

doi:10.1016/j.dental.2017.06.004

Cited by 20 publications

(10 citation statements)

References 37 publications

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“…The inert nature of this type of ceramic substrate limits the chemical interaction with primers, adhesives and resin cements [4]. Moreover, limited topographic roughness is observed after mechanical and/or chemical-mechanical surface treatments due to the high hardness and reduced (almost absent) vitreous phase in zirconia surfaces [27]. This study showed that is possible to increase the bond strength of RC to zirconia by producing resin cements that contain TU oligomers, especially oligomers P_AL, P_AR, or T_CC.…”

Section: Discussionmentioning

confidence: 99%

Resin cements formulated with thio-urethanes can strengthen porcelain and increase bond strength to ceramics

Bacchi

Spazzin

Oliveira

et al. 2018

Journal of Dentistry

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Section: Discussionmentioning

confidence: 99%

Resin cements formulated with thio-urethanes can strengthen porcelain and increase bond strength to ceramics

Bacchi

Spazzin

Oliveira

et al. 2018

Journal of Dentistry

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“…[ 9 ] The blasting procedure was carried out as per recommendations in the literature. [ 17 18 , 20 47 48 49 ]…”

Section: Discussionmentioning

confidence: 99%

Surface characteristics and bioactivity of zirconia (Y-TZP) with different surface treatments

et al. 2020

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A BSTRACT Background: Zirconia being a bio-inert material needs to be surface treated to render it more bioactive and enhance its osseointegration potential. However, bioactivity studies focusing on the ability of sandblasting and ultraviolet photofunctionalization (UVP) surface treatments in inducing apatite precipitation using simulated body fluid (SBF) are lacking. Aim: The aim of the study was to comparatively evaluate the effect of two different surface treatments—sandblasting with 50 µm alumina and UVP with ultraviolet C (UVC) light on the bioactivity of zirconia. Materials and Methods: A total of 33 discs with dimensions 10 mm × 2 mm were obtained from zirconia blanks (Amann Girrbach, Koblach, Austria) and randomly divided into three groups ( n = 11), namely Group I (untreated), Group II (sandblasted), and Group III (UVP). Surface characteristics of representative test samples were analyzed using X-ray diffraction (XRD), atomic force microscopy (AFM), contact angle goniometry, scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX), to assess type of crystal phase of zirconia, surface roughness, wettability, surface topography, and elemental composition, respectively. SBF was prepared and calcium content in SBF (Ca-SBF) was determined using inductively coupled plasma mass spectrometry (ICP-MS). Results: Data were analyzed by one-way analysis of variance (ANOVA), post hoc Tukey honestly significant difference (HSD), and Student’s t test for statistical significance ( P < 0.05, significant; P < 0.01, highly significant). Surface characteristics analyses revealed that XRD showed predominant tetragonal (t) zirconia crystal phase for all test groups. Mean surface roughness (Sa) of Group I was 41.83 nm, and it was significantly lesser than that of Group II (115.65 nm) and Group III (102.43 nm). Mean contact angles were 98.26°, 86.77°, and 68.03° for Groups I, II, and III, respectively, and these differences were highly significant. Mean pre-immersion Ca content in SBF was found to be 159 mg/L. Mean post-immersion Ca content was 70.10, 60.80, and 56.20 mg/L for Groups I, II, and III, respectively. Significant differences were found between Group I as compared to both Groups II and III. Bioactivity of Group III was marginally, but insignificantly higher with respect to Group II. Groups II and III were insignificant with respect to each other. Post-immersion XRD revealed predominant “t” phase, and SEM-EDX revealed well-formed, abundant calcium apatite layer on the treated samples as compared to that on untreated sample and an increasing Ca/P ratio from 1.15, 1.79 to 2.08, respectively from Group I to Group III. Conclusion: Within the limitations of this study, both sandblasting and UVP significantly a...

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“…2,3,4,5,6,7 In dentistry, the use of resin cements has increased in the last years and currently, these are the first-choice materials for fixed esthetic inlays, onlays, crowns, and root posts. 3,4,7,8,9,10,11 Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript.…”

Section: Introductionmentioning

confidence: 99%

Influence of activation mode, fatigue, and ceramic interposition on resin cements’ diametral tensile strength

et al. 2019

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This study evaluated the influence of activation modes, on Diametral Tensile Strength (DTS) of dual cured resin cements subjected to a Mechanical Fatigue test (MF). Four dual-cured resin cements (RelyX UNICEM [U], RelyX ARC [A], ENFORCE [E] and Nexus 2 [N]) were activated by three different curing modes as follows: Self-Curing (SC), Dual Cure activation with photoactivation executed directly (DC) and Dual Cure activation with Photoactivation Through Porcelain (DCTP). After 24 hours, half of the sample was subjected to 30.000 fatigue cycles at 1 Hz frequency and 12 N load. Then, all specimens were subjected to DTS test in Instron Universal Testing Machine and data were analyzed by three-way ANOVA and Tukey's Test (5%). The results of DTS test means (MPa) and standard deviation, for each cement factor activated by SC, DC and DCTP was respectively:

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The influence of Y-TZP surface treatment on topography and ceramic/resin cement interfacial fracture toughness

Cited by 20 publications

References 37 publications

Resin cements formulated with thio-urethanes can strengthen porcelain and increase bond strength to ceramics

Resin cements formulated with thio-urethanes can strengthen porcelain and increase bond strength to ceramics

Surface characteristics and bioactivity of zirconia (Y-TZP) with different surface treatments

Influence of activation mode, fatigue, and ceramic interposition on resin cements’ diametral tensile strength

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