Chewing gum can be either good or bad for your teeth, depending on the type.

• Sugar-free gum is generally good for your teeth. Chewing it stimulates saliva production, which helps to neutralize acids in your mouth and rinse away food particles. This can help prevent tooth decay and cavities. Some sugar-free gums even contain xylitol, a natural sweetener that can help reduce bacteria that cause cavities.
• Sugar-coated gum can be bad for your teeth. The sugar can feed bacteria in your mouth, leading to tooth decay and cavities.

So, the key is to choose sugar-free gum. If you’re looking for a gum to help with your oral health, look for one that is sweetened with a sugar substitute like xylitol.