Periodontitis is an inflammatory disease caused by chronic bacterial infection of the gum and bone supporting the teeth. Antimicrobial and Anti-inflammatory agents are used to treat periodontal diseases. Due to their short half life, these medications have to be taken frequently to maintain the desired therapeutic effect. Extensive efforts have recently been focused on targeting the drugs to a particular region of the body for extended period of time, thus maximizing drug availability and minimizing dose dependent side effects. This article reviews preparation of microspheres, gels and bioadhesive gel incorporated with drug loaded microspheres and parameters to evaluate their efficiency.