autobrush® is the world's only ADA-accepted U-shaped toothbrush! Elevate your oral care routine with our Double-sided Nylon Brush Head featuring GumDefend™ Bristles. With 58,000 ultra-soft, 45° angled bristles, these patented brush heads follow the ADA-approved BASS technique to support effective plaque removal—up to 5.1x better than manual toothbrushes.* The GumDefend™ Bristles add a fourth row of soft silicone bristles to gently stimulate gums and promote oral wellness. Achieve a thorough, full-mouth clean in just 30 seconds. Our brush heads also feature blue bristles that fade with use, letting you know when it’s time for a replacement to maintain optimal performance. Compatible with any autobrush model, we recommend replacing brush heads every 30-60 days to avoid bacteria buildup and bristle wear. *Based on clinical studies conducted at Salus, an ADA-accredited research facility.