Evaluation of Anti-Inflammatory and Antibacterial Properties of Photo-Thermal Hydrogel as Dual Functional Platform for Management of Periodontitis.

BACKGROUND

Periodontitis, one of the most common oral diseases caused by bacterial infection which affects gums, periodontal ligament and alveolar bone, is a leading cause of tooth loss in adults. Current clinical treatments, such as scaling or antibiotics, often result in incomplete biofilm removal or can contribute to drug resistance.

METHODS

To address these limitations, a nanozyme comprising platinum, copper, and selenium was developed, which was then incorporated into a thermoresponsive hydrogel.

RESULTS

When applied to periodontal pockets and exposed to 808 nm laser irradiation, the hydrogel became soft, dissolving to release the nanozyme. This nanozyme demonstrated superoxide dismutase (SOD)-like and catalase (CAT)-like activity, reducing excess reactive oxygen species (ROS) while displaying strong antibacterial and anti-inflammatory effects.

CONCLUSION

This photothermal nanozyme hydrogel showed excellent biocompatibility and has the potential to overcome the challenges of current periodontitis treatments.