The effect of light curing and self-etching primer after saliva contamination on shear bond strength of orthodontic brackets: An in vitro experimental study

2017 ◽  
Vol 76 (1) ◽  
pp. 26-30 ◽  
Author(s):  
Farnoosh Fallahzadeh ◽  
Ali Tayebi ◽  
Soheila Ahmadi ◽  
Salva Khosroshahian
Keyword(s):  
Experimental Study ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Orthodontic Brackets ◽  
Light Curing ◽  
Saliva Contamination ◽  
Effect Of Light

scholarly journals Prototype of a new tip developed to be coupled to dental light-curing units for optimizing bonding of orthodontic brackets and accessories

2013 ◽  
Vol 18 (6) ◽  
pp. 112-116
Author(s):  
Sergio Luiz Mota Júnior ◽  
Márcio José da Silva Campos ◽  
Marco Abdo Gravina ◽  
Marcelo Reis Fraga ◽  
Robert Willer Farinazzo Vitral
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Light Exposure ◽  
Orthodontic Brackets ◽  
Light Refraction ◽  
New Device ◽  
Halogen Light ◽  
Significant Difference ◽  
Light Curing

OBJECTIVE: development of a new device to be coupled to light-curing units for bonding orthodontic brackets and accessories, and test its efficacy in an in vitro mechanical trial. The inner surface of the device is mirrored and is based on physical concepts of light refraction and reflection. The main advantage of such device is the reduced clinical time needed for bonding and the low possibility of contamination during the process. METHODS: One hundred and twenty specimens were used for testing the shear bond strength of brackets bonded with the device. The Adhesive Remnant Index (ARI) was also determined. The sample was divided into 2 groups. In group 1 a halogen light-curing unit was used while in group 2 a led light-curing unit was used. Each group was then subdivided. In subgroups H1 and L1, a conventional light guide rod was used while in subgroups H2 and L2 bonding was performed with the mirrored device coupled to the tip of the guide light rod. RESULTS: The values obtained for the shear bond strength and the ARI in the subgroups were compared. Results showed that there was no statistically significant difference for the shear strength (p > 0.05) and the ARI (p > 0.05) between the subgroups. CONCLUSION: The tests of mechanical trials and the ARI analysis showed that the new device fulfilled the requirements for bonding orthodontic accessories, and that the time for bonding was reduced to half, being necessary only one light exposure.

scholarly journals Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study

2010 ◽  
Vol 18 (1) ◽  
pp. 68-74 ◽  
Author(s):  
Luciana Borges Retamoso ◽  
Niége Michelle Lazzari Onofre ◽  
Luciane Hann ◽  
Ernani Menezes Marchioro
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
In Vitro Study ◽  
Vitro Study ◽  
Light Curing ◽  
Effect Of Light

Effect of Light Activation Mode on the Incompatibility Between One-bottle Adhesives and Light-cured Composites: An In Vitro Shear Bond Strength Study

2009 ◽  
Vol 34 (5) ◽  
pp. 558-564 ◽  
Author(s):  
F. Shafiei ◽  
I. Safarpoor ◽  
M. Moradmand ◽  
A. A. Alavi
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
Light Activation ◽  
Pulse Delay ◽  
Soft Start ◽  
Effect Of Light

Clinical Relevance Low dentin bond strength has been previously documented when one-bottle adhesives are used with self-cured resin-based composites. Low dentin bond strength may also occur when one-bottle adhesives are used with light-cured resin-based composites that are activated by soft-start or pulse-delay curing strategies.

scholarly journals Orthodontic bracket bonding without previous adhesive priming: A meta-regression analysis

2015 ◽  
Vol 86 (3) ◽  
pp. 391-398 ◽  
Author(s):  
Aline Segatto Pires Altmann ◽  
Felipe Weidenbach Degrazia ◽  
Roger Keller Celeste ◽  
Vicente Castelo Branco Leitune ◽  
Susana Maria Werner Samuel ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Bond Strength ◽  
Shear Bond Strength ◽  
Outcome Measurement ◽  
Orthodontic Brackets ◽  
Experimental Conditions ◽  
Adhesive Resin ◽  
Meta Regression ◽  
Meta Regression Analysis

ABSTRACT Objective:  To determine the consensus among studies that adhesive resin application improves the bond strength of orthodontic brackets and the association of methodological variables on the influence of bond strength outcome. Materials and Methods:  In vitro studies were selected to answer whether adhesive resin application increases the immediate shear bond strength of metal orthodontic brackets bonded with a photo-cured orthodontic adhesive. Studies included were those comparing a group having adhesive resin to a group without adhesive resin with the primary outcome measurement shear bond strength in MPa. A systematic electronic search was performed in PubMed and Scopus databases. Results:  Nine studies were included in the analysis. Based on the pooled data and due to a high heterogeneity among studies (I2  =  93.3), a meta-regression analysis was conducted. The analysis demonstrated that five experimental conditions explained 86.1% of heterogeneity and four of them had significantly affected in vitro shear bond testing. The shear bond strength of metal brackets was not significantly affected when bonded with adhesive resin, when compared to those without adhesive resin. Conclusions:  The adhesive resin application can be set aside during metal bracket bonding to enamel regardless of the type of orthodontic adhesive used.

Effect of Storage Media on Shear Bond Strength of Orthodontic Brackets: An in vitro Study

2012 ◽  
Vol 46 (4) ◽  
pp. 203-209 ◽  
Author(s):  
Kavita Sachdeva ◽  
Anil Singla ◽  
Vivek Mahajan ◽  
HS Jaj ◽  
Sukhraj Singh Saini
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
In Vitro Study ◽  
Vitro Study ◽  
Orthodontic Brackets ◽  
Storage Media
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