In a new twist on the American Dental Association recommendation to replace your toothbrush every three months, a report in Natural Health Magazine (2/9) offers several alternatives to the traditional toothbrush manufactures designed to chip away at the nearly 100 million pounds of toothbrushes that would end up in landfills if all Americans followed the current guidelines. The manufacturers offer a variety of eco-friendly products ranging from toothbrushes made from recyclable materials to toothbrushes that have handles with interchangeable heads and mail in exchange systems. Earl Larson DDS at Wildhorse Dental in Chesterfield has always recommended changing your toothbrush at three month intervals to maintain its effectiveness, and is all for any products that might help with our landfill issues.