Laser dentistry is new technology that helps to treat with high degree of precision and accuracy. Laser treatment, today, is expected to serve as an alternative or adjunctive to conventional mechanical periodontal treatment. To use lasers safely in a clinic, the practitioner should have precise knowledge of the characteristics and effects of each laser system and their applications as well as a full understanding of the conventional treatment procedures and finally should exercise appropriate caution during use. In the years to come, laser systems may emerge as a new technical modality for nonsurgical and surgical periodontal therapy. It is important, therefore, to explore in detail this new technology by multi-centre collaborative studies.