The primary goal of periodontal therapy is to remove bacteria-laden dental plaque otherwise that will lead to progressive decay. In addition to the classic forms of periodontal therapy, laser modalities have also been proposed in recent years. The Er:YAG laser appears to be the most promising laser system for the treatment of marginal periodontitis. Several studies have demonstrated this laser's excellent ability to remove subgingival calculus without producing thermal effects in adjacent tissues.
In addition, controlled clinical studies have shown that the Er:YAG laser leads to a signifi cant increase in clinical attachment in both nonsurgical and surgical periodontal therapy. Preliminary clinical results indicate that this minimally invasive tool permits instrumentation of very deep and fl at pockets (eg, when removing root cement or in patients with increased gingival recession) without injuring hard and soft dental tissues. This live operation video demonstrates use of the Er:YAG laser for both nonsurgical and surgical periodontal therapy.