Antibacterial activity of 4 endodontic sealers against bacteria planktonic grown or in biofilms commonly detected from persistent and secondary endodontic infections.
Investigating the antibacterial activity of endodontic sealers and materials against bacteria in biofilms is highly important to evaluate the materials’ ability to eradicate bacteria from the infected root canal

Control and eradication of dental biofilm. This article gives a brief overview of antimicrobial compounds used for biofilm control and new technologies and strategies to combat dental biofilms.

Bacterial biofilm elimination using gold nanorod localised surface plasmon resonance generated heat.
Highlights:
A technique for antibiotic replacement using heat for biofilm elimination is proposed.
Gold nanorods exhibit localised surface plasmon resonance upon optical irradiation and when relaxing, absorbed energy is dissipated as heat, which is utilized to kill bacteria.
After 5 minutes of near infrared irradiation an average of 71% of early biofilms were eliminated.

An experimental dental adhesive incorporated with methacrylated chitosan significantly reduced biofilm formation compared to control, and it may be useful in prevention of secondary caries development.