Periodontal diseases and dental caries are the most common infectious oral conditions. Both are the result of infections caused by bacteria in the dental plaque biofilm. Periodontal diseases range from mild forms such as gingivitis to severe forms of periodontitis that result in destruction of periodontal support and tooth loss. Approximately half of the U.S. adult population aged 35 to 44 have gingivitis and about one-fourth have severe periodontitis. Although pathogenic bacteria in dental plaque are the primary etiologic agents for periodontal disease, diabetes and tobacco use increase risk for this infectious disease. Accumulating evidence also indicates a potential link between maternal periodontal disease and the incidence of preterm birth and /or low-birth weight babies and between periodontal disease and both cardiovascular disease and pulmonary disease (Pericarditis).Early childhood caries (ECC) affects the primary dentition and is seen in about 18% of children aged 2 to 4.