Hello ma'am! I have been suffering from tooth decay for 4 years. All the molar teeth and some premolar teeth are affected. At first I see some black spots on my teeth surface. After visiting doctors they remove the caries and provide filling. Parts of two molar teeth broke itself while I was eating biscuits. All my tooth are getting infected one by one. Is there any treatment to prevent it from occurring. It's very frustrating to watch all my tooth being affected one by one and there is no proper treatment to it. Whenever I visit dentist they just do filling and prescribe some toothpaste. It feels like I have to wait until next teeth becomes affected and then do filling. Ma'am can you please suggest permanent treatment to prevent any further teeth problems.