The same applies to brushing your teeth: the condition of your gums and teeth is as individual as you are. That is why we have developed the adaptable CURAPROX Sensitive toothbrushes. The bristles made from CUREN retain their already higher initial strength even when wet. This enables the use of much finer filament for gentle, deep cleaning. CURAPROX Sensitive with the small, compact head cleans more intensively and gently. However you brush with the CURAPROX CS - your tongue will feel the difference immediately: your teeth feel smooth and clean and shine naturally whiter. CS 820 medium 820 active CUREN bristles, for those who prefer a slightly "harder" brush.