Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Oral hygiene is the practice of keeping the mouth and teeth clean to prevent dental problems. Some common problems that occur when having a bad oral hygiene are dental cavities, gingivitis, and bad breath. A good oral hygiene is also required to heal and regenerate the oral tissues when having oral pathologies such as gingivitis, dental traumas, oral cysts, and after wisdom tooth extraction... Learn more about oral hygiene and related matters with the help of this book.