Hi Doctor, Since nearly two years I had slight pain and sensitivity in my upper middle tooth. Recently upon having severe pain, I consulted a dentist and after initial examination he took an xray of the affected tooth. It revealed the bottom of the tooth has completely damaged. He gave me antibiotics for five days and advised me root canal is the best solution to save the tooth. I underwent root canal treatment. It is more than two months now after the treatment but still I am having sensitivity and when touch slight movement is there in the tooth. Pus is also appearing in the jaw near the damaged tooth as small bubble. What shall I do, kindly advise me. Thanks, Philip Daniel Abu Dhabi
Dear friend. Thanks for sharing your concern. Sometimes some canals remain unexplored, or by periapical route the infection is introduced into the canal, when incompletely saturated, without apex seal. This leads to reinfection in the canal. It can be very well treated again by opening and reentering the canal. Therefore please visit your dentist with your previous x-rays and get yourself evaluated. The small abscess which you have mentioned in the history can also be Chat Doctor.  Meanwhile, do warm saline rinses. Hope it helps. Thanks. Take care.