EXTRA White Bubblemint. EXTRA® Sugarfree Chewing Gum helps to keep teeth clean and healthy, enabling you to feel more confident and ready to make the most of everyday moments and have your Time to Shine™. Chewing EXTRA® White helps to reduce stains before they build up to make sure that every smile is an EXTRA® White one. Make the most of the moment with the clean and fresh mouth feeling of EXTRA® Gum. Wrigley's EXTRA® Bubblemint Sugar free Chewing Gum in a bottle for on the go freshness. Endorsed by the FDI World Dental Federation.