In situ evaluation of micro and nanofilled load on biofilm retention of composite resins submitted to different surface treatments

2015 ◽  
Vol 2 ◽  
pp. 12-16
Author(s):  
Andre Afif Elossais ◽  
Gleice Gomes dos Reis ◽  
Luis Fernando Benitez Macorini ◽  
Pedro Gregol da Silva ◽  
Anna Thereza Peroba Rezende Ramos ◽  
...  
Keyword(s):  
Surface Treatments ◽  
Composite Resins

Novel environment friendly olive pomace-cyclohexanone formaldehyde composite resin

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Selda Sert ◽  
Nilgün Kızılcan
Keyword(s):  
Organic Solvents ◽  
Condensation Reaction ◽  
Agricultural Waste ◽  
Composite Resins ◽  
Formaldehyde Resin ◽  
Olive Pomace ◽  
Adhesion Properties ◽  
Content Type ◽  
Naoh Solution

Purpose Cyclohexanone-formaldehyde resin (CFR) was in situ modified with olive pomace (OP) in the presence of sodium hydroxide. The purpose of this study is to produce eco-friendly OP modified cyclohexanone composite resins (OPCFCR) with a one-step method that has higher condensation reaction temperature than CFR. The water absorption properties, gloss value and cross-cut adhesion properties of the product were investigated. Design/methodology/approach Cyclohexanone, formalin (37% aqueous solution) and tannin were mixed and 20% aqueous NaOH solution was added to produce the resin. OP has environmentally friendly bio-based lignin, cellulose and phenolic compounds and the OP structure has been incorporated into the structure of the CFR resin during the in situ modification, such as resole resin and polysaccharide. The weights of pomace were used as 5% and 10% of the weight of cyclohexanone in cyclohexanone-formaldehyde composite resins, respectively. Findings There is an improvement in the properties of the OPCFCR produced from an agricultural waste that is very abundant in Gulf of Edremit region of Balikesir. The OPCFCRs were soluble in common organic solvents. The product OPCFCR has a dark red-brown color. Research limitations/implications The reaction mixture must be stirred continuously. Subsequently, 37% formalin was added dropwise in total while refluxing. The amount of aqueous NaOH solution is limited as the formed resin may become insoluble in common organic solvents. At the end of the reaction, a water-insoluble resin is obtained. Practical implications This study provides the application of ketonic resins. The OPCFCR containing phenolic groups may also promote the adhesive strength of a coating. Social implications These resins may be used for the preparation of adhesive. OP, with a large amount of catechol groups, was considered for reducing the formaldehyde emission level on the adhesive system. Originality/value OPCFCR has been synthesized in the presence of a base catalyst. Environmental and ecological concerns have increased the attention paid by chemical industry to renewable raw materials.

Bond strength of repaired composite resins: surface treatments, adhesive systems, and composite type

2015 ◽  
Vol 30 (5) ◽  
pp. 520-533
Author(s):  
Emine Sirin Karaarslan ◽  
Abdul Semih Ozsevik ◽  
Mehmet Ata Cebe ◽  
Hatice Derya Gursel Surmelioglu ◽  
Samet Tosun ◽  
...  
Keyword(s):  
Bond Strength ◽  
Surface Treatments ◽  
Composite Resins ◽  
Adhesive Systems ◽  
Composite Type

Effect of ceramic surface treatments on the bond strength of different composite resins

2017 ◽  
Vol 32 (3) ◽  
pp. 247-257
Author(s):  
Nuran Yanıkoğlu ◽  
Zeynep Yeşil Duymuş ◽  
Murat Alkurt
Keyword(s):  
Bond Strength ◽  
Surface Treatments ◽  
Composite Resins ◽  
Ceramic Surface

scholarly journals Effect of different surface treatments on shear bond strength of ceramic brackets to old composite

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Homa Farhadifard ◽  
Loghman Rezaei-Soufi ◽  
Maryam Farhadian ◽  
Parisa Shokouhi
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
In Vitro Study ◽  
Surface Treatments ◽  
Composite Resins ◽  
Control Group ◽  
Composite Restorations ◽  
Ceramic Brackets ◽  
Aged Composite

Abstract Background At present, the demand for orthodontic treatment is on the rise. On the other hand, evidence shows that the bond strength of composite resins to old composite restorations is often unreliable. Therefore, the aim of this in vitro study was to assess the effect of different surface treatments on shear bond strength (SBS) of ceramic brackets to old composite restorations. Methods In this in vitro experimental study, 60 nano-hybrid composite discs were fabricated. For aging, the discs were incubated in deionized water at 37 °C for 1 month. Next, they underwent 4 different surface treatments namely acid etching with 37% phosphoric acid, sandblasting, grinding, and Er,Cr:YSGG laser irradiation. Ceramic brackets were then bonded to the discs and underwent SBS testing. Results The maximum mean SBS value was obtained in the grinding group (9.16 ± 2.49 MPa), followed by the sandblasting (8.13 ± 2.58 MPa) and laser (6.57 ± 1.45 MPa) groups. The minimum mean SBS value was noted in the control group (5.07 ± 2.14 MPa). Conclusion All groups except for the control group showed clinically acceptable SBS. Therefore, grinding, sandblasting, and Er,Cr:YSGG laser are suggested as effective surface treatments for bonding of ceramic orthodontic brackets to aged composite.

scholarly journals Effects of surface treatments on the bond strength of glass hybrid restorative system repaired with hybrid composite resin

2018 ◽  
Vol 8 (3) ◽  
pp. 131-138
Author(s):  
Banu Arıcıoğlu ◽  
Ömer Hatipoğlu
Keyword(s):  
Bond Strength ◽  
Hybrid Composite ◽  
Bonding Strength ◽  
Testing Machine ◽  
Glass Ionomer Cement ◽  
Surface Treatments ◽  
Composite Resins ◽  
Air Abrasion ◽  
Post Hoc ◽  
Bond Method

Aim: To assess the bonding strength of the Equia Forte resin modified glass ionomer cement to the hybrid composite material by applying different surface treatments. Methodology: 140 samples as 70 Equia Forte and 70 G-eanial composites were produced as 8 mm diameter 3 mm high cylindrical standardized samples. The samples were divided into 7 groups to treat surfaces. G-eanial composite resins as 4 mm diameter 3 mm high was placed onto the samples and polymerized. Then 1000 thermal cycle was applied and samples were mounted in the universal testing machine. Obtained bond strength values were recorded as Newton. One way Anova and Scheffe post hoc tests were performed for statistics. Results: In the G-aenial group, the highest bond strength was obtained with laser-bond method (N=17.71, P<0.05) and the lowest bonding strength was obtained with only laser-treated method (N=3.45, P<0.05). In the Equia group, the highest bond strength was obtained with air abrasion-bond method (N=9.29, P<0.05) and the lowest bonding strength was obtained with only laser-treated method (N=0.00, P<0.05). Conclusion: The fact that sufficient bond strength could not be reached by any surface treatment in Equia Forte may suggest that replacing the Equia Forte instead of repairs may be a better choice.

Influence of surface treatment on the fluorescence of composite resins subjected to in situ bleaching

2019 ◽  
Vol 32 (1) ◽  
pp. 51-56
Author(s):  
Lourdes M G García ◽  
Ana Paula T Godoi ◽  
Osvaldo A Serra ◽  
Juliana F Lima ◽  
Leonardo P A Almeida ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Composite Resins

Influence of different surface treatments and universal adhesives on the repair of CAD-CAM composite resins: An in vitro study

2020 ◽  
Vol 124 (2) ◽  
pp. 238.e1-238.e9
Author(s):  
Soner Sismanoglu ◽  
Zuhal Yildirim-Bilmez ◽  
Aysegul Erten-Taysi ◽  
Pınar Ercal
Keyword(s):  
In Vitro Study ◽  
Surface Treatments ◽  
Composite Resins ◽  
Vitro Study ◽  
Cad Cam ◽  
Universal Adhesives

Effect of In-Situ Chemical Surface Treatments on AlN/SiC Interfacial Contamination

2004 ◽  
Vol 457-460 ◽  
pp. 1377-1380
Author(s):  
D.O. Stodilka ◽  
B.P. Gila ◽  
C.R. Abernathy ◽  
E. Lambers ◽  
F. Ren ◽  
...  
Keyword(s):  
Surface Treatments ◽  
Chemical Surface

scholarly journals Assessment of natural aging and ecological surface treatments in earth renders

2020 ◽  
Author(s):  
Tânia Santos ◽  
Ricardo Gomes ◽  
Paulina Faria
Keyword(s):  
Linseed Oil ◽  
Aloe Vera ◽  
Natural Aging ◽  
Concrete Block ◽  
Surface Treatments ◽  
Great Relevance ◽  
Cooking Water ◽  
Non Destructive ◽  
Hollow Bricks

In conservation, earth renders can be used as sacrificial coatings. However, earth presents vulnerability when in contact with water. The application of ecological surface treatments on earth renders can be of great relevance, ensuring their durability while increasing eco-efficiency and extending its range of applications. The behaviour of a ready-mixed earth render applied in situ, on adobe and concrete block masonry experimental walls exposed outdoors with protection, and under controlled laboratory conditions, on hollow bricks, was evaluated after four years. Several superficial treatments were applied on the renders: linseed oil, mucilage of aloe vera and pasta and rice cooking water. The renders were characterized by non-destructive tests. The surface treatment with linseed oil presents good results and improves the durability of the earth render, giving it adequate protection against natural degradation.

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