GABRIELA CIAVOI, TUNDE JURCA, BIANCA PASCA, EDWIN SEVER BECHIR, CAMELIA MRAZ, CLAUDIA JURCA, RITA KISS, FELICIA MARC, ANNAMARIA PALLAG EVALUATION OF PHENOLIC COMPOUNDS CONTENT AND ANTIOXIDANT CAPACITY OF SOME MEDICINAL PLANTS, POTENTIALLY USED FOR THEIR PREVENTIVE ROLE AGAINST VARIOUS ORAL DISEASES The oral cavity diseases represent a public health issue. Antioxidants have an important role in the prevention of these diseases. In this study we tested different types of plants in order to evaluate the compounds with antioxidant capacity and in order to create a topical product which prevents oral cavity diseases. Phenolic compounds and flavonoids were analyzed in four different species of medicinal plants from spontaneous flora of Bihor County. The antioxidant capacity of the extracts was evaluated by: CUPRAC assay, ABTS method and FRAP method. Our results show that the studied medicinal plants represent rich sources of compounds with antioxidant capacity, especially Polygonum aviculare and Fumaria officinalis.