Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2010  |  Volume : 13  |  Issue : 3  |  Page : 141-144

Marginal permeability of one step self-etch adhesives: Effects of double application or the application of hydrophobic layer


1 Department of Conservative and Endodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
2 Department of Pedodontics, Teerthanker Mahaveer Dental College and Research Centre, Moradabad, Uttar Pradesh, India

Correspondence Address:
R Pushpa
Kothiwal Dental College, Moramustaqueem, Kanth Road, Moradabad-244 001
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.71646

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Aim : The purpose of this in vitro investigation was to evaluate the influence of double application and application of hydrophobic layer on marginal adaptation of four self-etch adhesive systems (XENOIII, ALLBONDSE, CLEARFIL SE TRI BOND, FUTURA BOND). Materials and Methods : One hundred and twenty class V cavities were prepared on intact, extracted human premolars and were divided into three groups of ten teeth each for all four adhesives. Group 1: Application of bonding agents as per manufacturer directions. Group 2: Double application of bonding agents. Group 3: Application of hydrophobic layer. The specimens were restored with composite and light cured. After thermocycling and immersion in 2% Basic Fuchsin dye solution, the teeth were sectioned and dye penetration was observed under a stereomicroscope at 20× magnification. All the samples were scored and results were analyzed using Kruskal-Wallis and Mann-Whitney tests. Results : Group 3, in which the adhesive systems were coated with hydrophobic layer, showed significantly decreased microleakage, followed by Group 1 and Group 2 for all the adhesive systems. And there is no significant different between Group 1 and Group 2. Conclusion : Marginal permeability of one-step adhesives can be minimized by the application of more hydrophobic resin layer, and the double application of one-step self-etch system can be safely performed without jeopardizing the performance of adhesives.


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