Oral health is not only important to appearance and sense of well-being, but also to the overall health. Oral infection can have an adverse effect on other organs. Dental caries and Periodontal diseases may contribute to many serious conditions if are not treated, such as diabetes, heart disease, respiratory diseases, women delivering pre-term and low birth rate babies. Also, the associations between nutritional and medical status, and oral health have highlighted an important connection between oral and systemic health.

Keywords: Oral infection, Dental caries, Periodontal diseases