Dental hygiene is the process of keeping your mouth, teeth, and gums clean and healthy is important in order to prevent disease. The preferred method of maintaining dental hygiene at home is brushing and flossing. The toothbrush and floss are on the frontlines of dental hygiene, fighting off plaque and bacteria in your mouth every day. When you go to the dentist, the dental hygienist whips out the big guns in order to scale and polish your teeth, while removing soft and hard deposits from your teeth. They also teach you techniques on how to efficiently clean your teeth at home. Dentists recommend that you get a professional cleaning from a dental hygienist twice a year.