Your mother was right: Never open bottles, packages, or other containers with your teeth. You might permanently chip or crack the enamel.
Gnawing on anything else -- like pens or fingernails -- or chomping down on seeds, popcorn kernels, or ice could have the same result. Above article from: Webmd.com/oral-health
Although tea has a reputation as a healthy beverage, it may not be the best choice when it comes to keeping your teeth white. Dentists say tea -- especially the basic black variety -- can cause more stains than coffee. However, recent studies have found that even herbal teas and white teas have the potential to erode enamel and cause tooth staining.
Wine tasters may be at high risk for enamel stain and erosion.
