Oral-B Deep Clean Battery Powered Toothbrush Replacement Heads 2-count feature a Rotating Powerhead and CrissCross Bristles that reach deep between teeth to lift out and sweep away plaque. New replacement toothbrush heads should be installed every 3 months. These toothbrush heads are compatible with Oral-B Complete Pro-Health and 3D White Battery-Powered Toothbrushes. Replacement directions on back of packaging for easy replacement toothbrush head install. Oral-B toothbrushes are designed with dentists inspired by the latest oral care technology and specialized to address your unique needs. Oral-B is the #1 toothbrush brand used by dentists worldwide.* *Based on surveys of a representative worldwide sample of dentists carried out for P&G regularly.