Effectiveness of primer application followed by non-thermal plasma treatment on the bond strength of a resin cement to zirconia

2015 ◽  
Author(s):  
Marcelo Giannini ◽  
Beatriz Curvello De MendonÇa
2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Daniele Oliveira da Silva ◽  
Tabata Prado Sato ◽  
Marina Bacelar Silva ◽  
Letícia Grilo de Souza ◽  
Eduardo Shigueyuki Uemura ◽  
...  

Objective: The aim of this study was to compare the bond strength of High-Translucency zirconia (HT) and lithium disilicate dental ceramics, under different surface treatments. Material And Methods: For this, ceramics were divided into groups: Control Group (C) (n = 5), lithium disilicate sheets, conditioned with 10% hydrofluoric acid, followed by application of 37% phosphoric acid, silane and universal adhesive application; Group HTAI (n = 5), HT zirconia sheets were blasted with silica oxide, followed by the application of universal adhesive; Group HTPAI (n = 5), HT zirconia sheets were blasted with silica oxide, followed by the application of non-thermal plasma and universal adhesive and the HTP Group (n = 5), HT zirconia received only the application of non-thermal argon plasma. Subsequently, the specimens of each group were subjected to a cementation process with resin cement, obtaining cylinders. After 24 h of storage, in distilled water, at 37°C, the specimens were subjected to a mechanical micro-shear test. The data obtained were submitted to ANOVA One-way followed by the Tukey test (5%). Results: The HTP Group was excluded from the statistical analysis, as adhesions failed within the storage period. In addition, it was not possible to verify a statistical difference between the control group C and the experimental groups HTAI and HTPAI. Conclusion: The results showed that the applicability of high translucency zirconia can potentially be compared to the lithium disilicate bond strength, when submitted to the same surface treatments, except for the plasma application, which alone was not effective. KEYWORDS Lithium disilicate; Nonthermal plasma; Zirconia ceramic.


2018 ◽  
Vol 21 (2) ◽  
pp. 210 ◽  
Author(s):  
Beatriz Togoro Ferreira Da Silva ◽  
Lívia Tosi Trevelin ◽  
Fernanda De Sá Teixeira ◽  
Maria Cecília Salvadori ◽  
Paulo Francisco Cesar ◽  
...  

<p><strong>Objective: </strong>This study investigated the influence of different surface treatments on zirconia surface energy, roughness and microshear bond strength. <strong>Material and Methods:</strong> Forty eight slices of Yttria-stabilized tetragonal zirconia polycrystal (Y-TZP- VITA In-Ceram® YZ for inLab®) (6.4 x 3.2 x 1.6 mm) were divided into 3 groups according to the surface treatment (n = 16): YTZP_control -untreated; YTZP_plasma -surface treatment with non-thermal oxygen plasma; YTZP_primer - coating with ceramic primer. Surface energy (n = 6) was measured with a goniometer; and surface roughness (n = 10) was analyzed with a 3D profilometer were performed over zirconia surface. On the same specimens of surface roughness, on the treated zirconia's surface, resin cement (PANAVIA V5 - Kuraray Noritake Dental) was built up by inserting the resin cement into Tygon tubes (1 mm of internal diameter X 1 mm length).  After 24 h storage, microshear test was assessed. Data were analyzed by one-way ANOVA and Tukey post-hoc test (<em>p </em>&lt; 0.05). <strong>Results:</strong> Non-thermal oxygen plasma treated specimens exhibited higher statistically significant surface energy (<em>p </em>= 0.00) and bond strength (<em>p </em>= 0.00) when compared to control and primer groups. Roughness test (<em>p </em>= 0.897) could not detect statistical difference among the tested groups. <strong><br /> Conclusion: </strong>Non-thermal oxygen plasma should be a suitable alternative for zirconia surface treatment prior to luting hence it improved microshear bond strength and provided higher surface energy without affecting surface roughness.</p><p> </p><p><strong>Keywords                                                                                                   </strong></p><p>Adhesion; Non-thermal plasma; Surface treatment.</p>


2017 ◽  
Vol 42 (2) ◽  
pp. 125 ◽  
Author(s):  
Maíra do Prado ◽  
Eduardo Moreira da Silva ◽  
Juliana das Neves Marques ◽  
Caroline Brum Gonzalez ◽  
Renata Antoun Simão

Author(s):  
Nelson RFA Silva ◽  
Leandro Martins ◽  
Paulo G Coelho ◽  
Van P Thompson ◽  
Weidong Zhu ◽  
...  

2017 ◽  
Vol 72 ◽  
pp. 284-292 ◽  
Author(s):  
Aljomar José Vechiato-Filho ◽  
Adaias Oliveira Matos ◽  
Richard Landers ◽  
Marcelo Coelho Goiato ◽  
Elidiane Cipriano Rangel ◽  
...  

PLoS ONE ◽  
2012 ◽  
Vol 7 (12) ◽  
pp. e52653 ◽  
Author(s):  
Laura Brullé ◽  
Marc Vandamme ◽  
Delphine Riès ◽  
Eric Martel ◽  
Eric Robert ◽  
...  

2020 ◽  
Vol 992 ◽  
pp. 658-662
Author(s):  
M.A. Mokeev ◽  
L.A. Urkhanova ◽  
A.N. Khagleev ◽  
Denis B. Solovev

Mechanical, chemical and plasma treatment are the main kind of treatment of polytetrafluoroethylene (PTFE) films. Each method is different from each other by the adhesive force: the value of the wetting angle. Mechanical treatment allows different particles to permeate into the structure of the polymer. Chemical treatment creates new functional groups on the polymer surface, but this method is toxic and dangerous. Plasma treatment, in a glow discharge non-thermal plasma, is a more ecological and practical method. The experiment showed that the plasma treatment successfully increases the adhesion, this has been proven by infrared spectroscopy and scanning electron microscopy. According to the obtained data of the wetting angle, the regression equation was derived. A graphical model is constructed by regression equations allows you to determine the main processing factor and choose the optimal values of treatment.


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