
Can Chewing Gum, Jaw Exercises, or “Mewing” Really Straighten Teeth?
No credible evidence supports the idea that chewing gum, jaw exercises, or the viral technique known as “mewing” can straighten crooked or crowded teeth. Teeth move in response to sustained, controlled pressure applied over months by an orthodontic appliance — not from muscle exercises or gum chewing, which don’t come






