Had root canal about 7 years ago,had a few infection problems every now and then.
Then end of November big problems,woke up at 5am looking like elephant man,face really swollen,went to mt dentist the next day,he took a look gave me Anti-biotics for a week,then went back a fortnight later,face all sollen again,more anti biotics,then a visit to him again on Xmas eve for more antibiotics,he then told me he couldnt remove it as it had Root canal(that he had done) and would need doing a hospital,3 weeks later a visit to Hospital to see a surgeon,he had a look,checked my records,said it needs doing asap, 4 days later i was in Hospital having it done under Local,the Root canal one snapped off,they then had to cut my gum open and remove each root seperately,whilst doing this they noticed that the tooth next to it had rotted away and was fallin to bits under the gum line,so i had that removed aswell..sore for a few weeks after,but now is fine..