Trichomonas tenax, or oral trichomonas, is a types of Trichomonas generally found in the oral cavity of people. Routine cleanliness is commonly not adequate to dispose of the parasite, consequently its Latin name, signifying "relentless". The parasite is as often as possible experienced in periodontal contaminations, influencing over half of the populace in certain regions, yet it is typically viewed as unimportant. T. tenax is commonly not found on the gums of solid patients.It is known to assume a pathogenic job in necrotizing ulcerative gum disease and necrotizing ulcerative periodontitis, declining prior periodontal disease. This parasite is likewise ensnared in some interminable lung infections; in such cases, evacuation of the parasite is adequate to permit recuperation (Mussaev 1976).