I had RCT procedure since the decay was too deep. Then a cera mic crown was fitted on the tooth. Its been almost 4 weeks since the crown was placed but I still feel some sensitivity/pain when I tapped on crown with finger. Is this normal after RCT procedure. How long I should wait this to go away. I consulted my dentist, she says there is no problem. She prescribed medicated mouthwash and Stolin. I am really afraid little bit since I came across some articles about RCT failure.