The Effect of Olive Leaf Extract

Oral diseases caused by pathogenic bacteria in the microflora are often associated with antibiotic resistance.

Nature is an unexplored pool of healing drugs. Antimicrobial agents derived from plants could enhance existing options by giving new perspectives and treatment possibilities.

Olive leaf extract is often used in dental medications along with other herbal ingredients such as thyme, grapefruit seed extract, chamomile flower, green tea leaves, eucalyptus leaf, cinnamon bark and various essential oils.

Research Results

The aim of a study in 2014 was to examine the antimicrobial activity of natural plant and fruit extracts of Mediterranean origin against various microbial species. More specifically, five different extracts from olive leaves, table olives, mastic and Inula viscosa (Syn Dittrichia viscosa) were examined against a group of nine related pathogenic microorganisms, which constitute typical inhabitants of the oral microflora, including a strain of Candida albicans. (1)

The results of the study aroused interest in the discovery of alternative natural compounds with antimicrobial activity against oral microorganisms resistant to existing treatments. The tested extracts were active against oral pathogens, especially Gram-negative anaerobic bacteria, so they were considered as alternative natural antiviral agents that could be used against periodontitis. (1)

Olive leaf extract inhibited the growth of Streptococcus oralis, Candida albicans, Escherichia coli, Porphyromonas gingivalis, Fusobacterium nucleatum and Parvimonas micra. (1)