[header] How to remove popcorn from your teeth [title] Use dental floss. [step] The american dental association recommends using dental floss at least once every day, but especially when you know there is debris stuck between your teeth. This may also include soft debris, which can include bread. 
The starch will turn into sugar and bacteria will grow. [substeps] Try to work the floss as close to the gum as possible between the teeth where the popcorn is stuck.