The impact of silver nanoparticles integration on biofilm formation and mechanical properties of glass ionomer cement

Abstract

As the modification of GIC with silver nanoparticles improved the antibiofilm properties without altering its mechanical properties, it could be used as a restoration of root carious lesion mainly in nonesthetic areas, a base under composite restorations in deep posterior cavities and as a core material in caries susceptible patients.

Effect of Nanoparticles Modified Glass Ionomer Cement on the Colour and Shear Bond Strength of Lithium Disilicate Ceramic

“…The addition of nanoparticles in glass ionomer was investigated by many investigators. (15,(33)(34)(35)(36) They tested the biological properties (antibacterial effect), the physical properties as well as the mechanical properties, (49) Dental literature lacks information about the effect of addition of nanoparticles on the final cement colour. In some investigations shear bond strength was tested without the final restorations, which is not the case in this current investigation to try to simulate clinical conditions.…”

“…Adhesive resin cements bond to both tooth structure and restoration. But, due to difficulty in removal of restorations cemented with adhesive resin cements as well as practitioners inevitably remove more tooth structure than needed to remove a bonded resin-cemented lithium disilicate restoration, (33) it appears that luting the lithium disilicate restorations with conventional resin modified glass ionomer or conventional glass ionomer cements to be an acceptable choice when there exists a retentive tooth preparation. It allows less traumatic crown removal when needed.…”

“…Although, therapeutic effect of adding antibacterial nano-particles to glass ionomer cement is proven by many researchers (15,(33)(34)(35)(36) yet they may result in some physical and mechanical changes . (33,37) Porenczuk et al (2016), (34) compared the shear bond strength and failure modes for glass-ionomer cement modified by silver and gold nanoparticles with dentin. They found non-significant difference in shear bond strength to dentine in all groups.…”

“…They found non-significant difference in shear bond strength to dentine in all groups. (33) studied the mechanical properties of glass ionomer cement integrated with silver nanoparticles. They found insignificant decrease in mechanical properties and increase in colour darkness when increasing nanoparticles concentration.…”

Biosynthesis and application of silver nano-biotics for enhancing the antimicrobial activity of glass-ionomer cement against studied microorganisms and its effect on compressive strength

“…Because of its antimicrobial activity and synergizing effects, researchers have studied the use of AgNPs in several areas of dentistry which include dental biomaterials [15][16][17], dental implants [18], orthodontic adhesives [19] etc. In vitro studies have shown, addition of AgNPs in to dental restorative materials inhibit growth of common oral microbes like Streptococcusmutans, Streptococcus sanguinis,and Lactobacillus through bactericidal and bacteriostatic effects of AgNPs on oral microbes [16,20] without altering its mechanical properties [21].…”