Orthodontic materials with fluoride have an antimicrobial ability for the prevention of white spot lesions

Aim: Orthodontic brackets during their wear cause demineralization of enamel, which is the initial step in caries development. The prevention of such spots is crucial to ensure healthy teeth, but patients’ compliance is not the most optimal way. The aim of this study was to compare the antimicrobial properties of fluoride-containing orthodontic materials to the materials without additional fluoride. Materials and Methods: Antibacterial effectiveness of orthodontic materials with fluoride – Transbond Plus SEP Bonding agent, Transpond Plus Adhesive agent, Fuji I Band cement, Fuji Ortho LC Adhesive agent, Ortho Solo Bonding agent, and without antimicrobial substances – Transpond XT Bonding agent, Transbond XT Primer were tested with the inhibition on most common causes L. achidophilus (ATCC 4356) and S. mutans (ATCC 10449) and compared to negative control. Antimicrobial effectiveness of each material was measured with the agar diffusion method and expressed with the diameters of inhibition zones around the disk. Results: Materials containing fluoride showed more antimicrobial effectiveness compared to materials without fluoride or negative control (p 0.05). Conclusion: Materials containing fluoride showed more significant antimicrobial effectiveness when compared to the materials without antimicrobial substance and thus might have the potential of antimicrobial properties in vivo.