Does the size matter? Evaluation of effect ofincorporation of silver nanoparticles of varying particle size on the antimicrobial activity andproperties of irreversible hydrocolloid impression material

Ginjupalli, Kishore and Shaw, Tushar and Tellapragada, Chaitanya and Gupta, Lokendra and Upadhya, Nagaraja P (2018) Does the size matter? Evaluation of effect ofincorporation of silver nanoparticles of varying particle size on the antimicrobial activity andproperties of irreversible hydrocolloid impression material. Dental Materials, 34 (7). e158-e165. ISSN 0109-5641

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Abstract

Objectives. The main objective of the present in vitro study is to evaluate the antimicrobialactivity and properties of irreversible hydrocolloid impression material incorporated withsilver nanoparticles of varying size at different concentrations.Methods. Silver nanoparticles of 80–100, 50–80, 30–50 and 10–20 nm size were added to irre-versible hydrocolloid impression material at 0.5, 1.0, 2.0 and 5.0 wt%. Antimicrobial activityof the silver nanoparticle incorporated irreversible hydrocolloid was measured using diskdiffusion method. The gel strength, flow, gelation time and permanent deformation weremeasured according to American Dental Association specification #18. Data were analyzedusing analysis of variation at a confidence interval of 95% (˛ = 0.05).Results. Silver nanoparticles of 80–100 nm size have imparted superior antimicrobial activityto the irreversible hydrocolloid in a dose-dependent manner whereas finer nanoparticlesize did not exhibit any antimicrobial activity. The addition of silver nanoparticles didnot alter the properties of irreversible hydrocolloid at 0.5 and 1.0 wt% whereas at higherconcentrations significant differences in flow, gelation time and strength were observed.

Item Type: Article
Uncontrolled Keywords: Alginate; antimicrobial activity; disinfection; infection control; irreversible hydrocolloid; silver nanoparticles.
Subjects: Dentistry > MCODS Manipal > Prosthodontics
Dentistry > MCODS Manipal > Dental Materials
Departments at MU > Manipal Centre for Virus Research
Depositing User: KMC Library
Date Deposited: 06 Sep 2018 05:49
Last Modified: 06 Sep 2018 05:49
URI: http://eprints.manipal.edu/id/eprint/151935

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