Welcome to the home of Ms. Bac-Teria, who loves an unhealthy mouth. Ms. Bac-Teria thrives on the thoughts of unbrushed teeth and relishes those who live in the land of lost floss. Tread lightly into the dismal and decayed home of Ms. Bac-Teria as she welcomes you into her home and introduces you to some of her friends. Friends of whom most would call enemies, but to her, they are her best buddies. Enter into her home. You have nothing to fear. After all, your mouth is where she lives.