The Oral-B Ortho Electric Toothbrush Replacement Brush Head is specially designed to effectively clean around braces by removing plaque. The round brush head is inspired by dental professional tools for a tooth-by-tooth clean with specially engineered bristles for optimal tooth coverage. Compatible with Oral-B rechargeable handles except for Oral-B sonic and Oral-B iO toothbrushes. Each order comes with 1 x Oral-B Ortho Electric Replacement Toothbrush Head. For adults and children 3+.