Tooth and Mouth Problems

I have bump on my gums that teeth was decayed so I have filling in it gums also become swollen after eating or being scratch by food touch I can't understand the reason behind this bump and swelling and how to treat it

My front one tooth is getting kinda sensitive when I'm biting. What can be the reason? Can't be cavity in front tooth right?

I feel like the nerves in my gums throb. It's not pain but a restlessness. What is it? It really bothers

I did my root canal last year in June for my below left corner tooth. Since then there is a small boil in my gum for which root canal is done. Earlier there was no problem. But I have noticed that the tooth starts paining occasionally, specially with change in weather. Now suddenly the same root canaled tooth a paining. But it is not constant pain. It pains randomly and stops. Why is it happening.

I am getting bridge (PFZ) for upper 4 front teeth wherein the middle two will be pontic and the two at the end will be abutment. Will it be able survive long enough (about 20+ years) if I care for it. Will it dislodge during activities like kissing?

Plz suggest front teeth broken how to change. Its cast plz suggest me.. Old one side teeth problem puss coming so dr told remove for teeth new planting.. Plz suggest

I am suffering from pain below my ears for a long time. Started one side but now beginning to pain the other side as well. I have popping sounds in my ear, pain in temple area, really bad case of pain in neck and shoulder areas. I have pain in eyes and sometimes it seems like my vision is blurry. Consultations with ENT specialists have not provided any relief at all. Is it possible that I am suffering from TMJ? What can I do for relief and whom should I contact for further diagnosis and resolution.

I feel that my lower back jaw is causing pain when I bite down and when I try to open my mouth and my lower front teeth seems to be crooked. Why is that so?

Can  muscle spasm in facial muscles change the position of jaw and symmetry of face? How can I understand externally whether there is anything wrong in my jaw joint or not? Please help

Is it normal that tmj splint becomes very loose after many days of using? Why my bite has changed very abruptly? Please help.