Brush twice or thrice a day .This will allow and enable to have strong teeth .Doing so protects and helps to fight against cavity.Change yours tooth brush after every 3 months.Choose the best tooth paste which suits your mouth . I recommend not to uproot your teeth ,If you visit dentists this could take your eye sight also.Use Neem , Babul ,Guava or Mango tooth sticks ,etc. doing so helps you to have strong teeth.There are many while using tooth stick they only pushes forcefully their teeth ,I recommend you not to do so it makes teeth weaker .Use the tooth stick slowly ,lovingly by concentrating because without teeth how someone could eat food,If we will not eat food how we will survive?