Tooth and Mouth Problems

I have naturally yellowish teeth and I don't drink or not intake tea or coffee. Please suggest me the best procedure to whiten my teeth

I had done filling in one of my lower teeth,  the one next to the wisdom tooth..  i started to get severe pain after a week of filling and now i have been told that it is pulpitis and i need to get a rootcanal treatment, is there any way that pulpitis can be treated with medicines,  also if i want to avoid rct, can i get the tooth extracted , my concern if the missing tooth can cause issues with other tooth also??

In my lower tooth I am suffering from pain. Dentist suggest for root-canal. But he charge for root canal is 8000rs. Plz suggest cheap and best hospital or clinc for root-canal

I have a bad tobacco chewing habit and I want to stop, and its causing my teeth to stain quite alot where its getting quite embarrassing. I am on a very fixed income as i study and work at the same time so i wanted to know what the cost would be the cost to clean my full set of teeth?

Tooth issue,issue with swelling or wisdom tooth at the left, please suggest It's paining as well

Can a dentist decide  from opg x-ray,whether rct needed or not? Is it necessary for dentist To take iopa  x-ray before advising root canal treatment?

I will do brush very cleanly but I M getting bad smell and cavity problem I am using Dabur red toothpaste

I have pain in my teeth and taking pain killer for around 10 days, in consultation with different doctors. Is it harmful to take for so longer.?

I had leukoplakia 3 years ago. It was removed. Now it has formed again and i notice painful ulcers in my mouth.

There is cavity in my tooth.before 5-6 years ago I have done with the filling treatment.But I didn't done it without the cap.Now the filling came out and want to fill that tooth again with a cap .So how much it will be the cost for filling and a zarconium cap?