The impact of systemic and topical antimicrobial therapy combined with non-surgical periodontal therapy: A meta-analysis

Adding adjuvant systemic and topical antimicrobial agents to non-surgical periodontal therapy showed a beneficial impact regarding PPD and CAL (metronidazole/amoxicillin and doxycycline). In addition, using doxycycline as a topical agent showed a beneficial impact on the reduction of PPD.