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Strong antibacterial dental resin composites containing cellulose nanocrystal/zinc oxide nanohybrids.
J Dent. 2019 01; 80:23-29.JD

Abstract

OBJECTIVE

The aim is to explore the reinforcing and antibacterial effect of cellulose nanocrystal/zinc oxide (CNC/ZnO) nanohybrids on dental resin composites (DRCs).

METHODS

CNC/ZnO nanohybrids were prepared through precipitating Zn2+ on the surface of CNC and then introduced into the DRCs. The mechanical properties of DRCs including compressive strength, flexural modulus, flexural strength, and Vickers microhardness were characterized. The antibacterial activity of DRCs to Streptococcus mutans was determined and the morphology of Streptococcus mutans on the surface of DRCs after incubation was observed. The morphology of fractured surface after flexural test and Zn content in DRCs were analyzed.

RESULTS

Compared with DRCs without CNC/ZnO nanohybrids, DRCs containing 2 wt.% CNC/ZnO nanohybrids possess higher compressive strength and flexural modulus and there is no significantly statistical difference (P＞0.05) on the flexural strength and Vickers microhardness. The excess use of CNC/ZnO nanohybrids decreases the mechanical properties of DRCs except flexural modulus. DRCs containing CNC/ZnO nanohybrids show excellent antibacterial properties and a 78% reduction in bacterial number is obtained when 2% CNC/ZnO nanohybrids are added.

CONCLUSION

The small amounts of CNC/ZnO nanohybrids have a positive influence on the mechanical and antibacterial properties of DRCs.

SIGNIFICANCE

The prepared DRCs are promising to address bulk fracture and secondary caries.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Wang Y
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
Hua H
Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, China.
Li W
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
Wang R
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
Jiang X
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
Zhu M
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China. Electronic address: zhumf@dhu.edu.cn.

MeSH

Anti-Bacterial AgentsCelluloseComposite ResinsMaterials TestingNanoparticlesStreptococcus mutansZinc Oxide

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

30423354

Citation

Wang, Yazi, et al. "Strong Antibacterial Dental Resin Composites Containing Cellulose Nanocrystal/zinc Oxide Nanohybrids." Journal of Dentistry, vol. 80, 2019, pp. 23-29.
Wang Y, Hua H, Li W, et al. Strong antibacterial dental resin composites containing cellulose nanocrystal/zinc oxide nanohybrids. J Dent. 2019;80:23-29.
Wang, Y., Hua, H., Li, W., Wang, R., Jiang, X., & Zhu, M. (2019). Strong antibacterial dental resin composites containing cellulose nanocrystal/zinc oxide nanohybrids. Journal of Dentistry, 80, 23-29. https://doi.org/10.1016/j.jdent.2018.11.002
Wang Y, et al. Strong Antibacterial Dental Resin Composites Containing Cellulose Nanocrystal/zinc Oxide Nanohybrids. J Dent. 2019;80:23-29. PubMed PMID: 30423354.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Strong antibacterial dental resin composites containing cellulose nanocrystal/zinc oxide nanohybrids. AU - Wang,Yazi, AU - Hua,Hongfei, AU - Li,Wei, AU - Wang,Ruili, AU - Jiang,Xiaoze, AU - Zhu,Meifang, Y1 - 2018/11/10/ PY - 2018/10/02/received PY - 2018/10/26/revised PY - 2018/11/06/accepted PY - 2018/11/14/pubmed PY - 2019/11/27/medline PY - 2018/11/14/entrez KW - Bacteria KW - Caries KW - Composite materials KW - Mechanical properties KW - Streptococcus mutans KW - ZnO SP - 23 EP - 29 JF - Journal of dentistry JO - J Dent VL - 80 N2 - OBJECTIVE: The aim is to explore the reinforcing and antibacterial effect of cellulose nanocrystal/zinc oxide (CNC/ZnO) nanohybrids on dental resin composites (DRCs). METHODS: CNC/ZnO nanohybrids were prepared through precipitating Zn2+ on the surface of CNC and then introduced into the DRCs. The mechanical properties of DRCs including compressive strength, flexural modulus, flexural strength, and Vickers microhardness were characterized. The antibacterial activity of DRCs to Streptococcus mutans was determined and the morphology of Streptococcus mutans on the surface of DRCs after incubation was observed. The morphology of fractured surface after flexural test and Zn content in DRCs were analyzed. RESULTS: Compared with DRCs without CNC/ZnO nanohybrids, DRCs containing 2 wt.% CNC/ZnO nanohybrids possess higher compressive strength and flexural modulus and there is no significantly statistical difference (P＞0.05) on the flexural strength and Vickers microhardness. The excess use of CNC/ZnO nanohybrids decreases the mechanical properties of DRCs except flexural modulus. DRCs containing CNC/ZnO nanohybrids show excellent antibacterial properties and a 78% reduction in bacterial number is obtained when 2% CNC/ZnO nanohybrids are added. CONCLUSION: The small amounts of CNC/ZnO nanohybrids have a positive influence on the mechanical and antibacterial properties of DRCs. SIGNIFICANCE: The prepared DRCs are promising to address bulk fracture and secondary caries. SN - 1879-176X UR - https://www.unboundmedicine.com/medline/citation/30423354/Strong_antibacterial_dental_resin_composites_containing_cellulose_nanocrystal/zinc_oxide_nanohybrids_ DB - PRIME DP - Unbound Medicine ER -