question: I have a query related tooth decay.I saw black colour on my teeth then I went for treatment and then at the time of drilling for filling bleeding started. then she said I have to go for RCT. she just did temporary filling there then I thought to consult another doctor then he said wait for 1.5 month ,if no pain persist then come they will go for permanent filling I went there after 1.5 month and having no pain so they did permanent filling,after 4 days of permanent filling I am just seeing that my tooth colour is again changing to black and iI feel pain during chewing the food.