This review of of locally delivered antimicrobials as an adjunct to scaling and root planing (SRP) for the non-surgical treatment of patients with periodontitis included 50 RCTs. While the findings indicate statistically significant benefits for probing pocket depth and clinical attachment level (CAL) at 6-9 months and for CAL at 12-60 months their clinical importance can be questioned. In addition most of the studies(47) were considered to be at high risk of bias.
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