Evidence-based periodontology is the application of evidence-based health care to periodontology. Periodontology has a rich history and a strong passion for science and in its clinical practice; changes are emerging at a rapid rate. When approximately evaluated and carefully managed, the integration of emerging technology into practice can improve health and enhance the quality of life. In an evidence-based approach, all evidence is not given the same weight. The stronger the evidence, the stronger the recommendation it will support. Therefore, the evidence-based periodontology is a tool to support decision making and integrating the best evidence available with clinical practice.