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- Title
Anti-Bacterial and Microecosystem-Regulating Effects of Dental Implant Coated with Dimethylaminododecyl Methacrylate.
- Authors
Bolei Li; Yang Ge; Yao Wu; Jing Chen; Xu, Hockin H. K.; Minggang Yang; Mingyun Li; Biao Ren; Mingye Feng; Weir, Michael D.; Xian Peng; Lei Cheng; Xuedong Zhou
- Abstract
The effects of dimethylaminododecyl methacrylate (DMADDM) modified titanium implants on bacterial activity and microbial ecosystem of saliva-derived biofilm were investigated for the first time. Titanium discs were coated with DMADDM solutions at mass fractions of 0 mg/mL (control), 1, 5 and 10 mg/mL, respectively. Biomass accumulation and metabolic activity of biofilms were tested using crystal violet assay and MTT (3-(4,5-Dimethyl-thiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. 16S rRNA gene sequencing was performed to measure the microbial community. Live/dead staining and scanning electron microscopy (SEM) were used to value the structure of biofilm. The results showed that the higher mass fraction of DMADDM the coating solution had, the significantly lower the values of metabolic activity and accumulated biofilms got, as well as fewer live cells and less extracellular matrix. Moreover, 5 mg/mL of DMADDM was the most effective concentration, as well as 10 mg/mL. In microecosystem-regulation, the DMADDM modified titanium implant decreased the relative abundance of Neisseria and Actinomyces and increased the relative abundance of Lactobacillus, a probiotic for peri-implant diseases. In conclusion, via inhibiting growth and regulating microecosystem of biofilm, this novel titanium implant coating with DMADDM was promising in preventing peri-implant disease in an 'ecological manner'.
- Subjects
DENTAL implants; METHACRYLATES; ACRYLATES; BIOFILMS; MICROBIAL aggregation
- Publication
Molecules, 2017, Vol 22, Issue 11, p2013
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules22112013