### Understanding the Role of Bacteria in Gum Health Your mouth is home to over 700 species of microbes, including bacteria and fungi. Some of these microbes are beneficial, while others can be harmful. When the balance between good and bad bacteria is maintained, the good bacteria help keep the harmful ones in check. However, if this balance is disrupted, the harmful bacteria can take over and cause gum disease. #### The Balance of Bacteria Good bacteria in your mouth can prevent harmful bacteria from causing damage. But when the balance is disturbed, harmful bacteria can inflame your gums. This inflammation releases chemicals that feed the bad bacteria, causing them to multiply. As a result, more bacteria inflame your gums and can start to erode the bone that supports your teeth. Over time, this can lead to severe gum disease, tooth decay, and even tooth loss. #### Probiotics and Gum Health Just like in your gut, probiotics (beneficial bacteria found in certain foods and supplements) can help restore the balance of bacteria in your mouth. Researchers have found that probiotics can be effective in fighting gum disease. For example, studies have shown that chewing gum or lozenges containing probiotics can reduce plaque and inflammation in people with gingivitis, a mild form of gum disease. #### Practical Tips If you're concerned about gum disease, talk to your dentist about whether probiotics might be beneficial for you. However, the most important steps you can take to prevent gum disease are to brush and floss your teeth regularly.