Local drug delivery systems for the periodontal microenvironment: from barrier penetration to multilevel synergy.

Researchers reviewed how local drug delivery systems for periodontitis work, identifying barriers like biofilm and immune degradation, and describing how newer multilevel systems can provide sequential antibacterial, anti-inflammatory and regenerative effects—though significant gaps remain between laboratory models and clinical reality.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.