An optimized synthetic substrate for orthodontic bond strength testing

The aim of this study was to evaluate the effect of surface treatment and storage time on immediate repair bond durability of methacrylate- and ormocer-based bulk fill composites. In total, 265 discs were divided into 32 groups (n = 8/group) according to: (1) Material: X-tra fil and Admira Fusion X-tra; (2) Surface treatment: oxygen inhibition; matrix; Futurabond M+; Silane/Futurabond M+; Admira Bond; Silane/Admira Bond; ceramic repair system; and Silane/Cimara bond; and (3) Storage time: 24 h and 6 months. Each disc received three micro-cylinders from the same material. Specimens were subjected to micro-shear bond strength testing either at 24 h or 6 months. Data were analyzed using ANOVA/Tukey’s test/Student t-test (p = 0.05). All experimental factors had significant effect on bond strength (p < 0.0001). Drop in bond strength was noticed in both materials after six months (p < 0.05), except for Admira Fusion X-tra treated with silane/cimara adhesive (p = 0.860). Both materials showed insignificant values with Admira bond either at 24 h or 6 months (p = 0.275 and p = 0.060, respectively). For other treatments, X-tra fil showed significantly higher values at 24 h and 6 months (p < 0.05). Ceramic repair system can be used to immediately repair both methacrylate- and ormocer-based composites.

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Non-destructive Bond Strength Testing of Anodic Bonded Wafers

Handbook of Silicon Based MEMS Materials and Technologies ◽

10.1016/b978-0-8155-1594-4.00036-x ◽

2010 ◽

pp. 551-554

Author(s):

Roy Knechtel

Keyword(s):

Bond Strength ◽

Strength Testing ◽

Non Destructive

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Meta-analytical Review of Parameters Involved in Dentin Bonding

Journal of Dental Research ◽

10.1177/0022034511431251 ◽

2011 ◽

Vol 91 (4) ◽

pp. 351-357 ◽

Cited By ~ 106

Author(s):

J. De Munck ◽

A. Mine ◽

A. Poitevin ◽

A. Van Ende ◽

M.Vivan Cardoso ◽

...

Keyword(s):

Bond Strength ◽

Water Storage ◽

High Sensitivity ◽

Strength Testing ◽

Discriminative Power ◽

Strength Data ◽

Weighted Means ◽

Strength Tests ◽

Analytical Review

Bond-strength testing is the method most used for the assessment of bonding effectiveness to enamel and dentin. We aimed to disclose general trends in adhesive performance by collecting dentin bond-strength data systematically. The PubMed and EMBASE databases were used to identify 2,157 bond-strength tests in 298 papers. Most used was the micro-tensile test, which appeared to have a larger discriminative power than the traditional macro-shear test. Because of the huge variability in dentin bond-strength data and the high number of co-variables, a neural network statistical model was constructed. Variables like ‘research group’ and ‘adhesive brand’ appeared most determining. Weighted means derived from this analysis confirmed the high sensitivity of current adhesive approaches (especially of all-in-one adhesives) to long-term water-storage and substrate variability.

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Fracture Patterns after Micro-Tensile Bond Strength Testing of Zirconia with Different Surface Treatment and Different Veneering Techniques with and without Aging

Ain Shams Dental Journal ◽

10.12816/0032635 ◽

2015 ◽

Vol 18 (1) ◽

pp. 85-91

Author(s):

Tarek Salah Morsi ◽

Ghada Abdel Fattah Abdel Sattar ◽

Amina Mohamed Hamdy

Keyword(s):

Bond Strength ◽

Surface Treatment ◽

Tensile Bond Strength ◽

Strength Testing ◽

Fracture Patterns

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Comparison of dynamic versus static bond strength testing

Dental Materials ◽

10.1016/j.dental.2009.11.119 ◽

2010 ◽

Vol 26 (2) ◽

pp. e144 ◽

Cited By ~ 1

Author(s):

A. Poitevin ◽

J. De Munck ◽

M.V. Cardoso ◽

A. Mine ◽

M. Peumans ◽

...

Keyword(s):

Bond Strength ◽

Strength Testing

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Effect of etching time and light source on the bond strength of metallic brackets to ceramic

Brazilian Dental Journal ◽

10.1590/s0103-64402011000300011 ◽

2011 ◽

Vol 22 (3) ◽

pp. 245-248 ◽

Cited By ~ 15

Author(s):

Paulo Roberto Amaral Gonçalves ◽

Rafael Ratto de Moraes ◽

Ana Rosa Costa ◽

Américo Bortolazzo Correr ◽

Paulo Roberto Aranha Nouer ◽

...

Keyword(s):

Bond Strength ◽

Light Source ◽

Argon Laser ◽

Etching Time ◽

Strength Testing ◽

Light Sources ◽

Ceramic Surface ◽

Light Activation ◽

Adhesive Remnant Index ◽

Halogen Light

This study evaluated the bond strength of brackets to ceramic testing different etching times and light sources for photo-activation of the bonding agent. Cylinders of feldspathic ceramic were etched with 10% hydrofluoric acid for 20 or 60 s. After application of silane on the ceramic surface, metallic brackets were bonded to the cylinders using Transbond XT (3M Unitek). The specimens for each etching time were assigned to 4 groups (n=15), according to the light source: XL2500 halogen light, UltraLume 5 LED, AccuCure 3000 argon laser, and Apollo 95E plasma arc. Light-activation was carried out with total exposure times of 40, 40, 20 and 12 s, respectively. Shear strength testing was carried out after 24 h. The adhesive remnant index (ARI) was evaluated under magnification. Data were subjected to two-way ANOVA and Tukey's test (α=0.05). Specimens etched for 20 s presented significantly lower bond strength (p<0.05) compared with those etched for 60 s. No significant differences (p>0.05) were detected among the light sources. The ARI showed a predominance of scores 0 in all groups, with an increase in scores 1, 2 and 3 for the 60 s time. In conclusion, only the etching time had significant influence on the bond strength of brackets to ceramic.

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A Critique of Bond Strength Testing in Orthodontics

British Journal of Orthodontics ◽

10.1179/bjo.21.1.33 ◽

1994 ◽

Vol 21 (1) ◽

pp. 33-43 ◽

Cited By ~ 152

Author(s):

Nigel A. Fox ◽

John F. McCabe ◽

John G. Buckley

Keyword(s):

Bond Strength ◽

New Products ◽

Standard Technique ◽

Strength Testing ◽

Review Of The Literature ◽

Test Procedures ◽

Materials Used ◽

Number Of Publications

The literature contains a large number of publications on in vitro bond strength testing of materials used in orthodontics. The results are often quoted by manufacturers to support their products. Little attention has been paid to the detail of the test procedures used. However, a review of the literature revealed a large variation in the methods used for bond strength testing in orthodontics making comparison of papers difficult and often impossible. The case for a possible standard technique is suggested. It is hoped that this will lead to more meaningful testing of new products, which will produce more reliable guidance for the clinical orthodontist.

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Microleakage and Shear Bond Strength of Composite Restorations Under Cycling Conditions

Operative Dentistry ◽

10.2341/16-132-l ◽

2017 ◽

Vol 42 (2) ◽

pp. E71-E80 ◽

Cited By ~ 8

Author(s):

RF Zanatta ◽

M Lungova ◽

AB Borges ◽

CRG Torres ◽

H-G Sydow ◽

...

Keyword(s):

Bond Strength ◽

Thermal Cycling ◽

Shear Bond Strength ◽

Composite Resin ◽

Control Group ◽

Strength Testing ◽

Class V ◽

Composite Restorations ◽

Etch And Rinse ◽

Self Etch

SUMMARY Objectives: The aim of this study was to evaluate microleakage and shear bond strength of composite restorations under different cycling conditions. Methods and Materials: Class V cavities were prepared in the buccal and lingual surfaces of 30 human molars (n=60). A further 60 molars were used to prepare flat enamel and dentin specimens (n=60 each). Cavities and specimens were divided into six groups and pretreated with an adhesive (self-etch/Clearfil SE Bond or etch-and-rinse/Optibond FL). Composite was inserted in the cavities or adhered to the specimens' surfaces, respectively, and submitted to cycling (control: no cycling; thermal cycling: 10,000 cycles, 5°C to 55°C; thermal/erosive cycling: thermal cycling plus storage in hydrochloric acid pH 2.1, 5 minutes, 6×/day, 8 days). Microleakage was quantified by stereomicroscopy in enamel and dentin margins after immersion in silver nitrate. Specimens were submitted to shear bond strength testing. Statistical analysis was done by two-way analysis of variance and Kruskal-Wallis tests (p<0.05). Results: Microleakage in enamel margins was significantly lower in the control group compared with thermal cycling or thermal/erosive cycling. Erosive conditions increased microleakage compared with thermal cycling (significant only for Clearfil SE Bond). No significant differences were observed in dentin margins. Bond strength of enamel specimens was reduced by thermal cycling and thermal/erosive cycling when Clearfil SE Bond was used and only by thermal/erosive cycling when Optibond FL was used. No differences were observed among dentin specimens. Conclusions: Thermal/erosive cycling can adversely affect microleakage and shear bond strength of composite resin bonded to enamel.

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