Toxic elements contamination of the nature has been a huge issue since the time of civilization and moving the people to city. The immense expansion of all types of metals, especially in developing countries like Iran, causes pollution of many resources such as soil, water, and air. In this way, these toxic metals are absorbed by factors such as plants and cannot be removed quickly, and their accumulation occurs in the human body. Let's say that Pb is one of the important toxic elements that has been surprisingly used and accumulated since the beginning of human civilization.

Medicinal plants are considered as a major asset in any society. The role of these plants is more visible today than ever before and requires a stronger position every day. In recent years, research on their effects in various areas, including the fight against disease. Today's lifestyle changes have caused various foods to cause more serious harm to humans by having substances and plaques that destroy oral tissue health. Viral and bacterial as well as using like mouthwashes and cleaners, fight against cancer and dietary supplements are developing and evolving. Chemical drugs, due to their side effects, sometimes damage other parts of the body. They need to be researched more in the future. In this short review paper, the effects of some of the most important medicinal plants like Curcuma longa, Ananas comosus, Zingiber offinale, Salvia rosmarinus, Mentha piperita and Syzygium aromaticum, that are used today to treat and improve oral health issues are introduced. Finally, suggestions for better and more use are given.