Tooth and Mouth Problems

I have had a dental bridge for 15 years replacing the last 3 teeth on the left side, as the middle tooth (molar) was extracted. It developed sensitivity a few weeks ago. No infection was shown on the X-rays, but my dentist performed an RCT on my last abutment tooth. Post-RCT, I still had mild sensitivity lasting for 2 days which turned into pain on the 3rd day. I took Keterol DT for the pain and the pain subsided and didn't return for the next week. So he took measurements and fitted my new bridge the day before yesterday, telling me I should feel no pain, but I keep having pain in the tooth where the RCT was done and it aggravates even when food or the opposite tooth touches that part of the bridge. I am seriously devastated and scared.

I have attached a photo.. pls guide me the treatment and all possible way to save my teeth. Re root canal also done

Implacted bony wisdom tooth has been extracted...now what will happen to 2nd molar. ...please help me in this regard...and I don't want to go with rct...is filling okay

Please tell me will my 2nd molar survive after wisdom tooth extraction..and will last for 12,-14 year minimum

I'm 30 years old and had a failed root canal after 5 years due to which my first molar on the right side had to be extracted. The prosthodontist has suggested me to get implant for that missing tooth but I'm extremely anxious about the pain or failure in the future as it's very expensive treatment. Please give me some tips and insights on the same.

I brushed a little extra hard and now my teeth are hurting for 2 days. My gums are also bleeding and it momentarily goes away when I drink water or apply ice or on brushing but it is continuously hurting

I have some tightness on my chin and below to lips and in one flat teeth after 5 days of  removal of wisdom tooth. Doctor advised me to take neurobion forte. Will my nerve be alright as before with this medicine.

Since Last 4 days observed redness inside cheek near wisdom tooth. The area was sometimes irritated by toothpick. Had a history of tobacco chewing, left 5 months ago. What it can be?

Please tell.me I don't want to.go.for rct ...I will.be.more than happy if i avoid it ..in this regard please be brutally honest...I only have pain while tight chewing and when cold.water touch it...no pain otherwise... And please tell me if there is filling how long will.it last and if there is rct how long will it last...

Gum is swollen with a small white spot as seen in the picture. It is no very painful but a little discomfort due to this swelling. What is this? Should I take antibiotic course?