The effects of a novel herbal toothpaste on salivary lactate dehydrogenase as a measure of cellular integrity.

Objective: Lactate dehydrogenase (LDH) is a critical intracellular enzyme responsible for anaerobic respiration in pyruvate metabolism which becomes detectable in extracellular spaces after cellular breakdown. This clinical investigation examined the effects of brushing with a test toothpaste containing natural ingredients, i.e.