Patanjali dant kanti is useful for tooth.i am using patanjali dant kanti since last 4 years.i and my whole family use patanjali dant kanti.i use this paste in morning and night.it is a herbal ayurvedic product by patanjali.my whole family and me use all product of patanajali.because patanjali all product is best quality.my tooth is very strong.its taste is not so good.but its work is very good.i drink child water.but my tooth never get senstivity. my neighbouar and my freind use only patanjali product. Because patanjali give very lowest price product.but quality is very best.i only use for tooth paste patanjali dant kanti