- Coralclean interdental brush help to clean the small interdental space and prevent periodontal disease. - Direction: - Insert the brush into interdental space slowly and scrub back and forth. - Repeat this motion in different interdental spaces. - After using, please clean it in water and dry it for next time use. - Caution: - For ones whose interdental space is very narrow, please don’t force the brushing hard. - The wire may be disconnected if you bend it many times. - Consult with a doctor when your teeth keep bleeding. - Don’t use the brush for other purposes than tooth cleaning. - Keep interdental brush out of reach of children. **For further product information, please contact Chat Support**