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.

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 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.

scholarly journals Effect of 2% Chlorhexidine Following Acid Etching on Microtensile Bond Strength of Resin Restorations: A Meta-Analysis

Medicina ◽  
2019 ◽  
Vol 55 (12) ◽  
pp. 769 ◽  
Author(s):  
Tasnim Hamdan-Nassar ◽  
Carlos Bellot-Arcís ◽  
Vanessa Paredes-Gallardo ◽  
Verónica García-Sanz ◽  
Agustín Pascual-Moscardó ◽  
...  
Keyword(s):  
Bond Strength ◽  
Meta Analysis ◽  
Experimental Studies ◽  
In Vivo Studies ◽  
Acid Etching ◽  
Control Group ◽  
Microtensile Bond Strength ◽  
Chlorhexidine Solution ◽  
Resin Restorations

Background and Objectives: The aim of this systematic review was to examine the effect of 2% chlorhexidine following acid etching on the microtensile bond strength of resin restorations for different follow-up times. Materials and Methods: A thorough search of PubMed, Scopus, and Embase databases were conducted. In vitro experimental studies or in vivo studies published up to December 2018 with an experimental group treated with a 2% chlorhexidine solution following acid etching and a control group were included, wherein the final restoration used a resin composite in both the groups. Results: Twenty-one articles were identified for qualitative analysis and 18 for meta-analysis. The difference in the means of microtensile bond strength between the two groups was calculated for the different follow-up times. The differences were significant for 6 months (4.30 MPa; 95% CI 2.72–5.89), 12 months (8.41 MPa; 95% CI 4.93–11.88), and 2–5 years including aged and thermocycling samples (9.08 MPa; 95% CI 5.36–12.81). There were no significant differences for the type of adhesive used. A meta-regression model showed a significant effect of time on the microtensile bond strength. Conclusions: The application of a 2% chlorhexidine solution after acid etching increased the microtensile bond strength significantly for follow-up times of 6 months or more. The adhesive type had no influence.

scholarly journals Effect of Over-Etching and Prolonged Application Time of a Universal Adhesive on Dentin Bond Strength

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2902
Author(s):  
Phoebe Burrer ◽  
Hoang Dang ◽  
Matej Par ◽  
Thomas Attin ◽  
Tobias T. Tauböck
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Linear Regression Analysis ◽  
Acid Etching ◽  
Control Group ◽  
Application Time ◽  
Universal Adhesive ◽  
Adhesive Application ◽  
Post Hoc ◽  
Phosphoric Acid Etching

This study investigated the effect of over-etching and prolonged application time of a universal adhesive on dentin bond strength. Ninety extracted human molars were ground to dentin and randomly allocated into nine groups (G1–9; n = 10 per group), according to the following acid etching and adhesive application times. In the control group (G1), phosphoric acid etching was performed for 15 s followed by application of the universal adhesive Scotchbond Universal (3M) for 20 s, as per manufacturer’s instructions. In groups G2–5, both the etching and adhesive application times were either halved, doubled, quadrupled, or increased eightfold. In groups G6–9, etching times remained the same as in G2–5 (7.5 s, 30 s, 60 s, and 120 s, respectively), but the adhesive application time was set at 20 s as in the control group (G1). Specimens were then restored with a nanofilled composite material and subjected to microtensile bond strength testing. Bond strength data were statistically analyzed by ANOVA and Tukey’s post-hoc tests (α = 0.05). The relationship of bond strength with etching and adhesive application time was examined using linear regression analysis. Treatment of dentin with halved phosphoric acid etching and adhesive application times (G2) resulted in a significant bond strength decrease compared to the control group (G1) and all other test groups, including the group with halved acid etching, but 20 s of adhesive application time (G6). No significant differences in bond strength were found for groups with multiplied etching times and an adhesive application time of 20 s or more, when compared to the control group (G1). In conclusion, a universal adhesive application time of at least 20 s is recommended when bonding to over-etched dentin.

scholarly journals Effect of a self-etching primer and phosphoric acid etching on the bond strength of 4-META/MMA-TBB resin to human enamel

2015 ◽  
Vol 34 (2) ◽  
pp. 219-226 ◽  
Author(s):  
Hiroshi NOGAWA ◽  
Hiroyasu KOIZUMI ◽  
Osamu SAIKI ◽  
Haruto HIRABA ◽  
Mitsuo NAKAMURA ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Acid Etching ◽  
Human Enamel ◽  
Phosphoric Acid Etching

Influence of phosphoric acid etching on bond strength of adhesives

2015 ◽  
Vol 31 ◽  
pp. e8
Author(s):  
Y. Tamura ◽  
S. Shibasaki ◽  
S. Matsuyoshi ◽  
K. Tsubota ◽  
T. Takamizawa ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Acid Etching ◽  
Phosphoric Acid Etching

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.

Effect of Chlorhexidine Application Methods on Microtensile Bond Strength to Dentin in Class I Cavities

2010 ◽  
Vol 35 (6) ◽  
pp. 618-623 ◽  
Author(s):  
Y-E. Chang ◽  
D-H. Shin
Keyword(s):  
Clinical Practice ◽  
Phosphoric Acid ◽  
Bond Strength ◽  
Clinical Relevance ◽  
Class I ◽  
Microtensile Bond Strength ◽  
High Bond ◽  
High Bond Strength ◽  
Application Methods

Clinical Relevance In order to secure high bond strength in clinical practice, 2% chlorhexidine application after etching with 37% phosphoric acid is the recommended procedure.

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