Manufacturers often claim that their particular toothbrush design is better than the competitors, but is it? As a result, engineers must consider the economic issues involved with selling the products they create, as well as their functionality: to produce the best possible toothbrush regardless of cost, or the toothbrush that will sell the most,…

Many people probably remember the oral hygiene presentation in school when an oversized toothbrush and "Mr. Tooth"demonstrated proper brushing techniques. Red disclosing tablets were chewed after brushing, and then friends were amazed with our poor dental habits! The point is that presentation was remembered. Middle school students today need a…