*vs regular straight bristles.
1. Beals D, Ngo T, Feng Y, Cook D, Grau DG, Weber DA. Development and laboratory evaluation of a new toothbrush with a novel brush head design. Am J Dent. 2000;13(spec no):5A-14A.
2. Data on file, P&G.
3. Cugini MA, Warren PR. The Oral-B CrossAction manual toothbrush: a 5-year literature review. J Can Dent Assoc. 2006:72(4)323.