 ABSTARCT Background: Atorvastatin is an inhibitor of 3-hydroxy-2-methyl-glutaryl coenzyme A reductase. Lately, it has shown to have anti-inflammatory and bone stimulatory effects. The aim of the current study is to explore the effectiveness of 1.2 atorvastatin ATV as an adjunct to scaling and root planning SRP in the treatment of mandibular degree II furcation defects. 