Tooth and Mouth Problems

I hv been having pain since 4 to 5 month in cavity just below the root canal operated teeth i hv taken some suggestions according to them their is infection and cyst appeared in it and asking me to remove my teeth i dont want to remove my teeth any suggestions

Sub gingival scaling please too much calculus .... preferably with machine ... for better results ....

I am 38. My upper teeth are protruding and lower are not even. Is it possible at this age to get it mended ? How long will it take & what will be the cost ? My job is in BPO, call taking. I have to speak whole day. Will it affect my job ?

I have been having multiple bitten lip sore for two weeks.i often face this problem.those bitten sore connects with each sore and make a big one.it hurts a lot and ittake two three weeks to heal.what should i do?

I dont wear my retainers regularly so i am looking forward to use fixed retainers . I wanted to enquire about the average cost of fixed retainers.

I'm 19 yrs Old Boy , I got frequent Mouth Ulcers and it's painful to eat . I have use many aurvedic treatments like Salt water , Honey , teabags , magnesium milk etc but it's not effective So my question is what to do to stop these mouth ulcers .

There is lil pain in my left jaw n when ever i open my mouth the clicking sound comes from left jaw .

One of my front tooth in the upper row had crown for last 14 years which recent broke. Need a new permanent Crown or a Permanent Implant whichever iss advised by the doctor. The doctor here suggested to go for another crown. Additionally, the tooth adjacent to one that had crown might need root canal and crowning too, as my dentist here suggested. I am in Chicago and Dental costs are pretty stiff here. I am planning to visit India for the treatment, the only issue is that I am not sure how long does this procedure take in general. (Probable Nee crown on one tooth. Root canal ans crown on the adjacent tooth). Based on that I would need to apply for leave at office here. Your quick response would be highly appreciated. Attaching the Xray Thanks

I listen a clicking sound from my right side of jaw when i open my mouth and when I shake my head towards back side. My right jaw deviates towards left side and My jaw muscles become very tightened sometimes. Also I have neck pain, upper back pain and sometimes I feel breathing problem. When i do posture related exercises I feel better than before and i listen lesser numbers of clicking sound that time. Is postural problem related to my jaw problem? I am really going through very very tough time. Please don't ignore it. please help me and tell me what should I do at that time.

Gums have swelled and teeth is turning black at bottom with a shell developing on the lower  surface of teeth