Effect of Phosphoric Acid Etching of Enamel Margins on the Microleakage of a Simplified All-in-One and a Self-etch Adhesive System

2009 ◽  
Vol 34 (5) ◽  
pp. 531-536 ◽  
Author(s):  
K. Khosravi ◽  
E. Ataei ◽  
M. Mousavi ◽  
N. Khodaeian
Keyword(s):  
Phosphoric Acid ◽  
Clinical Relevance ◽  
Adhesive System ◽  
Acid Etching ◽  
Self Etch ◽  
Phosphoric Acid Etching

Clinical Relevance This study evaluates the effect of phosphoric acid etching of enamel margins on the microleakage of a simplified all-in-one and a self-etching adhesive system in comparison to a conventional total-etch system.

Shear Bond Strength of Self-etch Adhesives to Enamel with Additional Phosphoric Acid Etching

10.2341/07-63 ◽  
2008 ◽  
Vol 33 (2) ◽  
pp. 155-162 ◽  
Author(s):  
A-K. Lührs ◽  
S. Guhr ◽  
R. Schilke ◽  
L. Borchers ◽  
W. Geurtsen ◽  
...  
Keyword(s):  
Composite Materials ◽  
Phosphoric Acid ◽  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
Acid Etching ◽  
Etch And Rinse ◽  
Bond Strengths ◽  
Self Etch ◽  
Phosphoric Acid Etching

Clinical Relevance When using self-etch adhesives to bond composite materials to enamel, there is concern about the ability to achieve bond strengths comparable to approved etch-and-rinse systems. An additional phosphoric acid etching can improve the shear bond strength of self-etch adhesives to enamel.

scholarly journals Effect of Selective Etch on the Bond Strength of Composite to Enamel Using a Silorane Adhesive

2015 ◽  
Vol 40 (6) ◽  
pp. E242-E249 ◽  
Author(s):  
L Bermudez ◽  
M Wajdowicz ◽  
D Ashcraft-Olmscheid ◽  
K Vandewalle
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Surface Treatment ◽  
The Self ◽  
Acid Etching ◽  
Bonding Agents ◽  
Diamond Saw ◽  
Bovine Enamel ◽  
Self Etch ◽  
Phosphoric Acid Etching

SUMMARY An improvement in bond strength to enamel has been demonstrated with the use of phosphoric acid prior to bonding with self-etch methacrylate-based adhesive agents. No research has evaluated the effect of phosphoric-acid etching of enamel with a newer self-etch silorane adhesive. The purpose of this study was to evaluate the shear-bond strength of composite to enamel using the self-etch silorane adhesive compared to other self-etching methacrylate-based adhesives, with or without a separate application of phosphoric acid. Bovine incisors were sectioned using a diamond saw and mounted in plastic pipe. The bonding agents were applied to flattened enamel surfaces with or without the application of 35% phosphoric acid. The bonded tooth specimens were inserted beneath a mold, and composite was placed incrementally and light cured. The specimens were stored for 24 hours and six months in water and tested in shear. Data were analyzed with a three-way analysis of variance (ANOVA) to evaluate the effects of surface treatment, adhesive agent, or time on the bond strength of composite to bovine enamel (α=0.05). Significant differences were found between the groups based on surface treatment (p<0.01) or adhesive agent (p<0.01), but not on time (p=0.19), with no significant interactions (p>0.14). Phosphoric-acid etching of bovine enamel significantly increased the bond strength of the self-etch methacrylate and the silorane adhesives. The methacrylate-based adhesives had significantly greater bond strength to enamel than the silorane adhesive.

scholarly journals Influence of phosphoric acid etching on microleakage of a self-etch adhesive and a self-adhering composite

2012 ◽  
Vol 57 (2) ◽  
pp. 220-226 ◽  
Author(s):  
C Rengo ◽  
C Goracci ◽  
J Juloski ◽  
N Chieffi ◽  
A Giovannetti ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Acid Etching ◽  
Self Etch ◽  
Phosphoric Acid Etching

Effect of Chlorhexidine Application on Microtensile Bond Strength to Dentin

10.2341/07-69 ◽  
2008 ◽  
Vol 33 (2) ◽  
pp. 183-188 ◽  
Author(s):  
C. J. Soares ◽  
C. A. Pereira ◽  
J. C. Pereira ◽  
F. R. Santana ◽  
C. J. Prado
Keyword(s):  
Adverse Effect ◽  
Phosphoric Acid ◽  
Bond Strength ◽  
Clinical Relevance ◽  
Acid Etching ◽  
Microtensile Bond Strength ◽  
Phosphoric Acid Etching ◽  
Chlorhexidine Solution

Clinical Relevance Based on the results of this study, the application of chlorhexidine solution at a concentration of 0.12 and 2% before, after or associated with phosphoric acid etching, presented similar behavior with no adverse effect on 24-hour bond strength.

scholarly journals Four chemical methods of porcelain conditioning and their influence over bond strength and surface integrity

2015 ◽  
Vol 20 (4) ◽  
pp. 51-56 ◽  
Author(s):  
João Paulo Fragomeni Stella ◽  
Andrea Becker Oliveira ◽  
Lincoln Issamu Nojima ◽  
Mariana Marquezan
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Surface Integrity ◽  
Hydrofluoric Acid ◽  
Shear Bond Strength ◽  
Testing Machine ◽  
Acid Etching ◽  
Ceramic Surface ◽  
Surface Conditioning ◽  
Phosphoric Acid Etching

OBJECTIVE: To assess four different chemical surface conditioning methods for ceramic material before bracket bonding, and their impact on shear bond strength and surface integrity at debonding.METHODS: Four experimental groups (n = 13) were set up according to the ceramic conditioning method: G1 = 37% phosphoric acid etching followed by silane application; G2 = 37% liquid phosphoric acid etching, no rinsing, followed by silane application; G3 = 10% hydrofluoric acid etching alone; and G4 = 10% hydrofluoric acid etching followed by silane application. After surface conditioning, metal brackets were bonded to porcelain by means of the Transbond XP system (3M Unitek). Samples were submitted to shear bond strength tests in a universal testing machine and the surfaces were later assessed with a microscope under 8 X magnification. ANOVA/Tukey tests were performed to establish the difference between groups (α= 5%).RESULTS: The highest shear bond strength values were found in groups G3 and G4 (22.01 ± 2.15 MPa and 22.83 ± 3.32 Mpa, respectively), followed by G1 (16.42 ± 3.61 MPa) and G2 (9.29 ± 1.95 MPa). As regards surface evaluation after bracket debonding, the use of liquid phosphoric acid followed by silane application (G2) produced the least damage to porcelain. When hydrofluoric acid and silane were applied, the risk of ceramic fracture increased.CONCLUSIONS: Acceptable levels of bond strength for clinical use were reached by all methods tested; however, liquid phosphoric acid etching followed by silane application (G2) resulted in the least damage to the ceramic surface.

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