Oral-B Pro-Health CrissCross Ultra Thin Toothbrush Extra Soft reaches deep along the gum line. 1. CrissCross® bristles Extra Soft CrissCross® bristles are angled in opposing directions to lift out and sweep away plaque. • 2. <0.01mm Ultrathin bristle tips Designed for gentle gum line cleaning. • 3. Ultrathin bristles reach up to 2x deeper between teeth^ ^vs regular, flat trim bristles. Based on laboratory testing. • Oral-B®, #1 Toothbrush Brand Used By Dentist Worldwide.* *Most used by dentists based on surveys of a representative worldwide sample of dentists’ usage carried out for P&G continuously. • Replace brush every 3 months. Clinical research proves that a new toothbrush can remove up to 30% more plaque than one 3 months old+ +Research with a flat trim toothbrush