The Prophet Muhammad ﷺ said: “The Miswak (tooth-stick) cleanses and purifies the mouth and pleases the Lord.” [An-Nasa’i]
The Prophet ﷺ said: “Were I not afraid that it would be hard on my followers, I would order them to use the siwak (as obligatory, for cleaning the teeth).” [Bukhari]
Number of scientific studies have demonstrated that miswak includes it strengthens the gums and prevents tooth decay, assists in eliminating toothaches and prevents further increase of decay which has already set in. Miswak creates a fragrance in the mouth and eliminates bad odors and improves the sense of taste, sharpens the memory, causes the teeth to glow, strengthens the eyesight, assists in digestion and clears the voice.