A, W., JP, B., F, E., & T, A. (2013). Brushing force of manual and sonic toothbrushes affects dental hard tissue abrasion. Clinical oral investigations, 17(3), 815. https://doi.org/10.1007/s00784-012-0788-z
Chicago Style (17th ed.) CitationA, Wiegand, Burkhard JP, Eggmann F, and Attin T. "Brushing Force of Manual and Sonic Toothbrushes Affects Dental Hard Tissue Abrasion." Clinical Oral Investigations 17, no. 3 (2013): 815. https://doi.org/10.1007/s00784-012-0788-z.
MLA (9th ed.) CitationA, Wiegand, et al. "Brushing Force of Manual and Sonic Toothbrushes Affects Dental Hard Tissue Abrasion." Clinical Oral Investigations, vol. 17, no. 3, 2013, p. 815, https://doi.org/10.1007/s00784-012-0788-z.
Warning: These citations may not always be 100% accurate.