Hello , I am a 40 years old male undergone 2nd upper molar teeth RCT 10 years back. An small abcess was developed 2 months back in sept 23 on that part of the gum where RCT done. After taking antibiotics pus was cleared but still there is a swelling. Right now the swelling is slightly increased in size but no pus. Dentist advised me to do reRCT or tooth removal with tooth implementation. Kindly suggest which is the better treatment? In this kind of cases is the swelling increased in size without pus or there is anything to worry for increasing the size?