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Effect of Adding Luteolin Nanoparticles on the Antibacterial and Mechanical Properties of an Orthodontic Adhesive | ||
| Al-Rafidain Dental Journal | ||
| Article 7, Volume 25, Issue 2, September 2025, Pages 309-322 PDF (893.96 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/rdenj.2023.141963.1217 | ||
| Authors | ||
| Huda Yilmaz Wahab* 1; Niam Riyadh Alsaleem2; Ghada Abdulrahman Taqa3; Ali Adil Shammil4 | ||
| 1Department of Pedodontics, Orthodontics and Preventive Dentistry/ College of Dentistry/ University of Mosul, Iraq | ||
| 2Department of Pedodontics, Orthodontics, and Preventive Dentistry, College of Dentistry/University of Mosul, Iraq | ||
| 3Department of Basic Dental Sciences, College of Dentistry, University of Mosul, Iraq | ||
| 4Iraqi Ministry of Health / Kirkuk health directorate / Higher Health Institute, Iraq | ||
| Abstract | ||
| The current study aimed to evaluate the effect of adding Luteolin nanoparticles in two different concentrations (1% and 3%) on the mechanical and antibacterial properties of the Transbond XT Unitek Orthodontic Adhesive. Materials and Methods: Thirty extracted human upper premolar teeth were used for the shear bond strength test (SBS). The teeth were randomly divided into three groups, ten teeth each: Control group, Luteolin 1% and Luteolin 3% Nanoparticles (NPs) groups. The mesh of the brackets was covered with transbond or modified adhesives, which were then adhered to the teeth. The brackets were debonded using a universal testing machine, and the adhesive remnant index was checked using a stereomicroscope at a 10X magnification. Thirty composite discs were used for the antibacterial test. ten discs were made from transbond adhesive as a control group, and twenty discs (divided equally) were prepared from orthodontic adhesive modified by incorporating Luteolin 1% and Luteolin 3% nanoparticles. The adhesive’s antibacterial activity against Streptococcus mutans and Lactobacillus acidophilus was determined by the disk diffusion technique. Statistical analysis was done at P >0.05. Results: The Control group's shear bond strength was statistically higher than that of the other groups (16.1 MPa for the control group and 12.9 MPa, 10.8 MPa for luteolin 1% and Luteolin 3%, respectively). However, the SBS results of this study demonstrated that the mean of all groups was more than that recommended by Reynolds (5.9-7.8 MPa) in (1975). The disc diffusion method showed that 3% luteolin modified adhesive was more effective than luteolin 1% and the control groups, with a larger bacterial inhibition zone. Conclusions: The incorporation of Luteolin NPs in orthodontic resin produced an antibacterial effect against Streptococcus mutans and Lactobacillus acidophilus without compromising the shear bond strength. | ||
| Keywords | ||
| Luteolin,,; ,،nanoparticles,,; ,،shear bond strength,,; ,،transbond orthodontic adhesive,,; ,،Streptococcus mutans,,; ,،Lactobacillus acidophilus,,; ,،Antibacterial test | ||
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