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Developing a novel antibacterial dental resin composite with improved properties.

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Title: Developing a novel antibacterial dental resin composite with improved properties.
Authors: Wen, Xin1 (AUTHOR), Almousa, Rashed1 (AUTHOR), Anderson, Gregory G2 (AUTHOR), Xie, Dong1 (AUTHOR) dxie@iupui.edu
Source: Journal of Composite Materials. Sep2019, Vol. 53 Issue 22, p3085-3092. 8p.
Subjects: Dental resins, Dental adhesives, Dental materials, Flexural strength, Compressive strength, Tensile strength
Abstract: A novel antibacterial resin composite has been developed and evaluated. Glycerol dimethacrylate was derivatized to have an antibacterial moiety attached and incorporated to a conventional resin composite formulation. Compressive strength and bacterial viability were used to evaluate the modified resin composites. Results showed that the modified resin composites showed a significantly enhanced antibacterial activity along with improved mechanical and physical properties. It was found that bromine-containing resin composite showed a higher antibacterial activity than its chlorine-containing counterpart. The modified resin composites showed an increase of 37–41% in yield strength, 23–27% in modulus, 9–15% in diametral tensile strength and 5–12% in flexural strength and a decrease of 35–69% in bacterial viability, 20–37% in water sorption, 7–12% in shrinkage and 7–10% in compressive strength, as compared to unmodified resin composite. Within the limitations of this study, the modified resin composite may potentially be developed into a clinically useful dental restorative since it demonstrated good mechanical strengths and potent antibacterial function. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:A novel antibacterial resin composite has been developed and evaluated. Glycerol dimethacrylate was derivatized to have an antibacterial moiety attached and incorporated to a conventional resin composite formulation. Compressive strength and bacterial viability were used to evaluate the modified resin composites. Results showed that the modified resin composites showed a significantly enhanced antibacterial activity along with improved mechanical and physical properties. It was found that bromine-containing resin composite showed a higher antibacterial activity than its chlorine-containing counterpart. The modified resin composites showed an increase of 37–41% in yield strength, 23–27% in modulus, 9–15% in diametral tensile strength and 5–12% in flexural strength and a decrease of 35–69% in bacterial viability, 20–37% in water sorption, 7–12% in shrinkage and 7–10% in compressive strength, as compared to unmodified resin composite. Within the limitations of this study, the modified resin composite may potentially be developed into a clinically useful dental restorative since it demonstrated good mechanical strengths and potent antibacterial function. [ABSTRACT FROM AUTHOR]
ISSN:00219983
DOI:10.1177/0021998319839134