scholarly journals The effect of surface treatment with Er:YAG laser on shear bond strength of orthodontic brackets to fiber-reinforced composite

2014 ◽  
pp. e379-83 ◽  
Author(s):  
M Dehghani ◽  
F. Ahrari
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Shear Bond Strength ◽  
Er:Yag Laser ◽  
Orthodontic Brackets ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Effect Of Surface

scholarly journals Effect of silane activation on shear bond strength of fiber-reinforced composite post to resin cement

2013 ◽  
Vol 5 (2) ◽  
pp. 104 ◽  
Author(s):  
Hyun-Dong Kim ◽  
Joo-Hee Lee ◽  
Kang-Min Ahn ◽  
Hee-Sun Kim ◽  
Hyun-Suk Cha
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Cement ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

scholarly journals Pengaruh Komposisi Glass Fiber Non Dental dan Penambahan Silane terhadap Kekuatan Geser Fiber Reinforced Composite sebagai Retainer Ortodonsi

2015 ◽  
Vol 1 (1) ◽  
pp. 53
Author(s):  
Dian Noviyanti Agus Imam ◽  
Siti Sunarintyas ◽  
Nuryono Nuryono
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Fiber Composition ◽  
Reinforced Composite ◽  
Universal Testing ◽  
Post Test

Retainer dibutuhkan untuk membantu menstabilkan posisi gigi geligi selama proses reorganisasi jaringan periodontal berlangsung. Retainer FRC ortodonsi dikembangkan sebagai alternatif material estetika serta aman bagi pasien alergi terhadap nikel. E-glass fiber lebih sering digunakan sebagai retainer ortodonsi. Penelitian ini bertujuan untuk mengkaji pengaruh komposisi glass fiber non dental dan penambahan silane terhadap kekuatan geser FRC sebagai retainer ortodonsi. Subjek penelitian terdiri dari 9 kelompok perlakuan dengan 3 jenis glass fiber yang berbeda yaitu glass fiber non dental A (LT, Cina), B (CMAX, Cina) dan C (HJ, Cina). Masing-masing glass fiber diberi perlakuan yang bervariasi yaitu tanpa penambahan silane, penambahan silane 1x dan 2x. Subjek penelitian direndam dalam akuades dan disimpan pada suhu 37ºC selama 24 jam sebelum dilakukan uji kekuatan geser dengan menggunakan alat Universal Testing Machine. Hasil penelitian dianalisis variansi dua jalur dan post hoc Tukey untuk mengetahui perbedaan statistik masing-masing kelompok. Hasil penelitian menunjukkan bahwa glass fiber non dental A dengan penambahan 2x silane memiliki rerata kekuatan geser tertinggi (12,72±2,02 MPa) sedangkan glass fiber non dental B tanpa penambahan silane memiliki rerata kekuatan geser terendah (6,96±1,69 MPa). Terdapat perbedaan bermakna antara komposisi fiber maupun penambahan silane terhadap kekuatan geser FRC (p<0,05). Tidak terdapat perbedaan bermakna pada letak kegagalan FRC (p>0,05). Berdasarkan hasil penelitian dapat disimpulkan bahwa komposisi SiO2 dan Al2O3 yang tinggi pada glass fiber non dental serta penambahan silane dapat meningkatkan kekuatan geser FRC. The Effect of Non Dental Glass Fiber Composition and Silane Addition on The Shear Bond Strength of Fiber Reinforced Composite as An Orthodontic Retainer. Retainers are required to stabilize the position of the teeth to permit reorganization of periodontal tissue. FRC orthodontic retainer was developed as an alternative material aesthetic and safe for nickel allergic patients. E-glass fiber is commonly used as an orthodontic retainer. The purpose of this study was to assess the effect of non dental glass fiber composition and silanes addition on the shear bond strength of the FRC as an orthodontic retainer. This study consisted of 9 treatment groups with three different types of non dental glass fiber, namely non dental glass fiber A (LT, China), B (CMAX, China) and C (HJ, China). Each glass fiber was given a variation treatment, without silanes, one time and two times of silanes addition. All the samples were stored in distilled water at 37ºC for 24 hours and subsequently tested for shear strength by using Universal Testing Machine.The groups were submitted to two way ANOVA analysis of variance with Tukey post test to verify the statictical difference between groups. The results showed that a non dental glass fiber A with two times of silanes addition has the highest shear bond strength (12,72±2,02 MPa), meanwhile a non dental glass fiber B without silane addition has the lowest shear bond strength (6,96±1,69 MPa). There were significant differences between the composition of glass fiber and the addition of silane toward the shear bond strength of FRC (p<0,05). No significant differences in debonded locations of FRC (p>0,05). Based on the results of this study concluded that the composition of the high SiO2 and Al2O3 in the non dental glass fiber  and the silanes addition can increase the shear bond strength FRC.

scholarly journals Evaluation of the shear bond strength of fiber-reinforced composite using different adhesive systems

2012 ◽  
Vol 1 (4) ◽  
pp. 249 ◽  
Author(s):  
PS Raju ◽  
Ankur Gupta ◽  
Jaishree Garg ◽  
Preeti Bhattacharya ◽  
DeepakK Agarwal ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Fiber Reinforced ◽  
Adhesive Systems ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite

Evaluation of Shear Bond Strength of Fiber-reinforced Composite and Methacrylate-based Composite to Pure Tricalcium-based Cement

2016 ◽  
Vol 8 (1) ◽  
pp. 25-27
Author(s):  
Ravula A Reddy ◽  
RS Basavanna
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
High Stress ◽  
Short Fiber ◽  
Strength Analysis ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Group I

ABSTRACT Aim Fracture of restorative composite is reported as a common reason for replacement. Due to failures of this kind, it is still controversial whether restorative composites should be used in large, high-stress-bearing applications, such as in direct posterior restorations. The high brittleness of current composites hinders their use in large stress-bearing areas. Thus, recently short fiber-reinforced composite was introduced as dental restorative composite resin. The aim of the article is to evaluate shear bond strength of fiber-reinforced composite (everX Posterior) and methacrylate-based composite (FILTEK Z250) to pure tricalcium silicate-based cement (biodentine). Materials and methods Acrylic blocks (n = 30) with 2 mm high and 5 mm diameter central holes were prepared. The samples were taken and filled with biodentine and were divided into two groups containing 15 in each group. Group I: Fiber-reinforced composite. Group II: Methacrylate-based composite, which are layered over biodentine. The specimens are transferred to the universal testing machine and subjected to shear bond strength analysis at a cross-head speed of 1.0 mm/minute. Results The bond strength values were significantly higher in case of fiber-reinforced composite when compared with methacrylate-based composite. Conclusion Within the limitations of the study, it was concluded that the fiber-reinforced composite with biodentine had highest bond strength when compared with methacrylate-based composite. Clinical significance Fiber-reinforced composite has excellent fatigue resistance because the embedded fibers are bonded to the polymer matrix and allow the stresses to be distributed effectively throughout the restoration. They are most suitable for applications in which the direction of highest stress is predictable. They are used in cavities with three or more surfaces missing and also in large-sized cavities. They are extensively used in cavities where inlays and onlays are prescribed. How to cite this article Reddy RA, Basavanna RS. Evaluation of Shear Bond Strength of Fiber-reinforced Composite and Methacrylate-based Composite to Pure Tricalcium-based Cement. CODS J Dent 2016;8(1):25-27.

scholarly journals The Effect of Surface Roughness on Repair Bond Strength of Light-Curing Composite Resin to Polymer Composite Substrate

2013 ◽  
Vol 7 (1) ◽  
pp. 126-131 ◽  
Author(s):  
Timo T. Kallio ◽  
Arzu Tezvergil-Mutluay ◽  
Lippo V.J. Lassila ◽  
Pekka K. Vallittu
Keyword(s):  
Surface Roughness ◽  
Bond Strength ◽  
Polymer Matrix ◽  
Shear Bond Strength ◽  
Weibull Modulus ◽  
Composite Resin ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Particulate Filler

Objective: The purpose of this study was to analyze the shear bond strength of a new composite resin to polymer-based composite substrates using various surface roughnesses and two kinds of polymer matrices. Materials and methods: Particulate filler composite resin with cross-linked polymer matrix and fiber-reinforced composite with semi-interpenetrating polymer matrix were used as bonding substrates after being ground to different roughnesses. Substrates were aged in water for one week before bonding to new resin composites. Twelve specimens in the substrate groups were ground with grinding papers of four grits; 320, 800, 1200 and 2400. Results: Corresponding values of surface roughness (Ra) varied from 0.09 to 0.40 for the particulate filler composite resin and 0.07 to 0.96 for the fiber-reinforced composite resin. Characteristic shear bond strength between the new resin and particulate filler composite resin was highest (27.8 MPa) with the roughest surface (Weibull modulus: 2.085). Fiber-reinforced composite showed the highest bond strength (20.8 MPa) with the smoothest surface (Weibull modulus: 4.713). Conclusions: We concluded that surface roughness did not increase the bonding of new resin to the substrate of IPN based fiber-reinforced composite, whereas the roughness contributed to bonding the new resin to the particulate filler composite resin with a cross-linked polymer matrix.

Shear Bond Strength between Fiber-Reinforced Composite and Veneering Resin Composites with Various Adhesive Resin Systems

2015 ◽  
Vol 25 (5) ◽  
pp. 392-401 ◽  
Author(s):  
Yousef A. AlJehani ◽  
Jagan K. Baskaradoss ◽  
Amrita Geevarghese ◽  
Marey A. AlShehry ◽  
Pekka K. Vallittu
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composites ◽  
Fiber Reinforced ◽  
Adhesive Resin ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite
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