What can i do to keep my tongue from getting plaque from time to time ?

Great question!: Three things to brush everyday: teeth, gums, and tongue. Sounds like you already brush your gums ; teeth. There are many tongue cleaning products; brush, blade, spoon, etc. F you do not own any gently press and scrape your tongue using a soup spoon and watch a creamy film of bacteria (plaque) coming out! tongue cleaning brushes/blades are fairly inexpensive. Try a few to find your best favorite.