scholarly journals Effect of dentin surface roughness on the shear bond strength of resin bonded restorations

2016 ◽  
Vol 8 (3) ◽  
pp. 224 ◽  
Author(s):  
Roodabeh Koodaryan ◽  
Ali Hafezeqoran ◽  
Sajjad Poursoltan
Keyword(s):  
Surface Roughness ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Dentin Surface

Effect of dentin surface roughness on shear bond strength

1990 ◽  
Vol 6 (3) ◽  
pp. 204-207 ◽  
Author(s):  
P.M. McInnes ◽  
S.L. Wendt ◽  
D.H. Retief ◽  
R. Weinberg
Keyword(s):  
Surface Roughness ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Dentin Surface

scholarly journals The Effect of Different Disinfecting Agents on Bond Strength of Resin Composites

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Ahmed Mohammed Hassan ◽  
Ahmed Ali Goda ◽  
Kusai Baroudi
Keyword(s):  
Bond Strength ◽  
Sodium Hypochlorite ◽  
Shear Bond Strength ◽  
Resin Composite ◽  
Testing Machine ◽  
Control Group ◽  
Posterior Teeth ◽  
Surface Pretreatment ◽  
Dentin Surface ◽  
Post Hoc

Objective. The aim of this study was to evaluate the effect of different disinfectant agents on bond strength of two types of resin composite materials.Methods. A total of 80 sound posterior teeth were used. They were divided into four groups(n=20)according to the dentin surface pretreatment (no treatment, chlorhexidine gluconate 2%, sodium hypochlorite 4%, and EDTA 19%). Each group was divided into two subgroups according to the type of adhesive (prime and bond 2.1 and Adper easy one). Each subgroup was further divided into two subgroups according to the type of resin composite (TPH spectrum and Tetric EvoCeram). Shear bond strength between dentin and resin composite was measured using Universal Testing Machine. Data collected were statistically analyzed byt-test and one-way ANOVA followed by Tukey’spost hoctest.Results. It was found that dentin treated with EDTA recorded the highest shear bond strength values followed by sodium hypochlorite and then chlorhexidine groups while the control group showed the lowest shear bond strength.Conclusions. The surface treatment of dentin before bonding application has a great effect on shear bond strength between resin composite and dentin surface.

scholarly journals CO2 laser dentin surface treatment most effectively increased ceramic shear bond strength

LASER THERAPY ◽  
2018 ◽  
Vol 27 (1) ◽  
pp. 48-54 ◽  
Author(s):  
Ahmed El Gamal ◽  
Etienne Medioni ◽  
Jean Paul Rocca ◽  
Carlo Fornaini ◽  
Nathalie Brulat-Bouchard
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Shear Bond Strength ◽  
Dentin Surface

Effect of Post-Curing Temperature and Mechanical Surface Treatment on Shear-Bond Strength of Asbestos-Free Brake Pad

2017 ◽  
Vol 751 ◽  
pp. 131-136
Author(s):  
Danuwat Pupan ◽  
Chakrit Suvanjumrat ◽  
Watcharapong Chookaew
Keyword(s):  
Surface Roughness ◽  
Contact Angle ◽  
Bond Strength ◽  
Adhesive Strength ◽  
Shear Bond Strength ◽  
Curing Temperature ◽  
Processing Temperature ◽  
Brake Pad ◽  
Molding Temperature ◽  
Backing Plate

Brake pad is the combination of lining and metallic components, e.g. steel backing plate (disc brake) and aluminum brake shoe (drum brake). Shear bond strength plays a major role to provide the safety and/or drive performances. This work aimed to study the processing factors affected the bonding strength. The molding temperature couple with post-curing temperature was simultaneously analyzed in order to optimize the processing temperature. The shear bond strengths of metallic plates were continually investigated with regard to the effect of different surface treatments. The obtained results indicated that the mechanical strength was increased as the molding temperature raised in ranges of 160°C to 180°C. Conversely, the deterioration of adhesive strength was progressively presented with rising post curing temperature. In comparing different backing plate, aluminum showed the higher shear bond strength than that of steel plate. In fact, the weakened property of aluminum in nature would be easily destroyed by mechanical treatments. From the shear tested results, an increase of surface roughness was inversely changed the shear bond strength. On the other hand, the contact angle of water droplet affected directly to adhesive strength. It was suggested that an adding surface roughness, commonly used in automotive industry, was inappropriate criteria, whist geometrical surface should be taken into account for improving the shear bond strength. Moreover, the contact angle and mechanical interlocking were recommended to use as a criteria of brake pad shear strength.

The Effect of Three Variables on Shear Bond Strength When Luting A Resin Inlay to Dentin

10.2341/08-82 ◽  
2009 ◽  
Vol 34 (3) ◽  
pp. 288-292 ◽  
Author(s):  
J-I. Lee ◽  
S-H. Park
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
Bonding Agent ◽  
Dentin Surface ◽  
Luting Material

Clinical Relevance In order to maximize the bond strength of a resin inlay to dentin, the exposed dentin surface should be sealed with DBA before taking an impression. In addition, the bonding agent should be gently air dried and light cured before applying the luting material.

scholarly journals Effect of sandblasting on surface roughness of zirconia-based ceramics and shear bond strength of veneering porcelain

2014 ◽  
Vol 33 (6) ◽  
pp. 778-785 ◽  
Author(s):  
Min HE ◽  
Zutai ZHANG ◽  
Dongxiang ZHENG ◽  
Ning DING ◽  
Yan LIU
Keyword(s):  
Surface Roughness ◽  
Bond Strength ◽  
Shear Bond Strength

Dentin surface roughness vs. bond strength of dentin adhesives

1989 ◽  
Vol 5 (5) ◽  
pp. 319-323 ◽  
Author(s):  
W.J. Finger ◽  
A. Manabe ◽  
B. Alker
Keyword(s):  
Surface Roughness ◽  
Bond Strength ◽  
Dentin Surface ◽  
Dentin Adhesives

scholarly journals Effects of Different Laser Treatments on Some Properties of the Zirconia-Porcelain Interface

2021 ◽  
Vol 12 ◽  
pp. e2-e2
Author(s):  
Abdulsatar M Abdulsatar ◽  
Basima M A Hussein ◽  
Ali M Mahmood
Keyword(s):  
Surface Roughness ◽  
Bond Strength ◽  
Surface Treatment ◽  
Co2 Laser ◽  
Nd:Yag Laser ◽  
Light Microscope ◽  
Shear Bond Strength ◽  
Control Group ◽  
Fractional Co2 Laser ◽  
Laser Treatments

Introduction: This study was performed to compare the effect of Fractional CO2 laser or Q switched Nd:YAG laser of surface treatment on the shear bond strength of zirconia-porcelain interface. Methods: Fractional CO2 laser at 30 W, 2 ms, time interval 1 ms, distance between spots 0.3 mm, and number of scans is (4) or Q switched Nd:YAG laser at 30 J/mm2 and 10 Hz were used to assess the shear bond strength of zirconia to porcelain. Pre-sintered zirconia specimens were divided into three groups (n = 10) according to the surface treatment technique used: (a) untreated (Control) group; (b) CO2 group; (c) Nd:YAG group. All samples were then sintered and veneered with porcelain according to the manufacturer’s instructions. Surface morphology was examined using a light microscope, the surface roughness test was done by the atomic force microscope (AFM), and the shear bond strength (SBS) test was done by a universal testing machine. After debonding following shear bond test, zirconia surfaces were examined under a light microscope to determine their fracture mode. Results: The Results of this study showed that the lowest SBS was recorded in the control group, and the highest SBS recorded in the Fractional CO2 group, followed by the Q switched Nd:YAG laser group, as well as an increase in surface roughness and change in the morphology and mode of failure in the experimental groups . Conclusion: This study shows that Fractional CO2 laser and Q switched Nd:YAG laser treatments significantly increase the bond strength than untreated zirconia .

scholarly journals Influence of Silver Nanoparticles on the Specific Properties of Acrylic Resin for Ocular Prosthesis

2018 ◽  
Vol 11 (3) ◽  
pp. 1573-1581 ◽  
Author(s):  
Maha M. Turki ◽  
Faiza M. Abdul-Ameer
Keyword(s):  
Surface Roughness ◽  
Impact Strength ◽  
Flexural Strength ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Acrylic Resin ◽  
Control Group ◽  
Mean Values ◽  
The Mean ◽  
Group B

Scleral acrylic resin is widely used to synthesize ocular prosthesis. However, the properties of this material change over time, thus requiring the prosthesis to be refabricated. Many studies were conducted to improve these properties by reinforcing this material with nanoparticles. This study aims to evaluate the effect of silver nanoparticle powder on the mechanical properties (transverse flexural strength, impact strength, shear bond strength, surface microhardness, and surface roughness) of scleral acrylic resin used for ocular prostheses. Two concentrations were selected from the pilot study and evaluated for their effects on scleral acrylic resin properties. According to the pilot study, 0.01 and 0.02wt% AgNPs powder improved the transverse flexural strength, microhardness, and surface roughness compared with other percentages. The specimens in the main study were divided into (3) main groups, (50) specimens without additives (control group A), (50) experimental specimens (with 0.01wt% AgNPs group B), and (50) experimental specimens (with 0.02 wt% AgNPs group C). Each group was subdivided into (5) equal subgroups depending on the tests used. The data were studied using one way ANOVA and post hoc LSD test. At 0.01 wt% AgNPs addition, the mean values of transverse flexural strength insignificantly increased (p> 0.05), and those of impact strength and shear bond strength significantly increased (p< 0.05) compared with those of the control group. At 0.02 wt% AgNPs addition (group C), the mean value of transverse flexural strength significantly increased (p< 0.05), that of impact strength insignificantly increased (p> 0.05), and that of shear bond strength increased with high significance (p< 0.01) compared with those of the control group. Group C showed insignificant increase in the mean values of transverse flexural strength, impact strength, and shear bond strength (p. 0.05) compared with group B. The scleral acrylic resin added with 0.01 and 0.02 wt% AgNPs showed insignificant increase in microhardness and insignificant decrease in surface roughness. The addition of AgNPs powder in both concentrations improved the mechanical properties of scleral acrylic resin used for ocular prostheses.

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