The present study evaluated the antifungal in vitro activity of the extract of the leaf of Psidium guajava Linn. against leavens of Candida of the oral cavity, including Candida albicans, C. tropicalis, C. stelatoidea and C. krusei, in comparative study with chlorhexidine (0,12%). The tests were carried out by agar-diffusion technique in dishes to determine the Minimum Inhibitory Concentration (MIC). The MIC of the extract of Psidium guajava upon C. albicans and C .tropicalis was 1:32, C. stelatoidea and C. Krusei was 1:2, making, in average, inhibition halos between 11 and 22 mm. It can be concluded that the extract of Psidium guajava show potential to inhibit the growth of leavens of Candida of the oral cavity, it supports the possibility of the use of this extract as an alternative way in the oral candidosis treatment.
Psidium guajava; Candida; antifungal activity
