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ORIGINAL RESEARCH Table of Contents   
Year : 2019  |  Volume : 30  |  Issue : 1  |  Page : 37-42
The antibacterial influence of nanotopographic titanium, zirconium, and aluminum nanoparticles against Staphylococcus aureus and porphyromonas gingivalis: An In vitro study

Department of Prosthodontics, SRM Dental College, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. S C Ahila
Department of Prosthodontics, SRM Dental College, Ramapuram, Chennai - 600 089, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijdr.IJDR_91_16

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Background: Nanoparticle coated implants have revolutionized the field of implantology. Peri-implantitis is one of the main for implant failure. Most implant failures are due to Streptococcus mutans, Staphylococcus aureus, Porphyromonas gingivalis, and Actinomyces concomitant. Aim: To evaluate and compare the antibacterial effect of titanium, zirconium, aluminum nanoparticles against S. aureus and P. gingivalis at 24, 72 hrs and 1 week intervals. Materials and Methods: According to ISO/TR 11175:1993, the samples were prepared in disc shape with 20-mm diameter and 1-mm thickness in Grade IV titanium. The samples were decontaminated by sonicating in acetone and subsequently in water three times for 15 min. A total of eighty samples were made, then coated with nanoparticles, and divided into Group-A (control), Group-B (Ti nanoparticles coating), Group-C (Zi nanoparticles coating), and Group-D (Al nanoparticles coating). The discs were sterilized under ultraviolet radiation and placed in Mueller-Hinton agar medium for S. aureus and blood agar for P. gingivalis. The colonies were counted at 24, 72 hrs and 1 week intervals. Statistical Analysis Used: The values were statistically analyzed using one-way ANOVA and Tukey honestly significant difference test. Results: The P < 0.001 showed that statistically significant difference in colony forming unit had been found in titanium nanoparticles coated samples at 24, 72 hrs and 1 week intervals. Conclusion: TiO2 nanoparticle coated titanium discs showed significant antibacterial effect.

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