Tooth and Mouth Problems

From last 15 days I am suffering from teeth sensitivity and getting headache

I recently have cavity filling, as u can show in pictures, will  these filling stay like these, i can see these filling is this normal

I have been noticing that food particles are getting stuck in the spaces between my inner teeth and I am not able to remove them by brushing. This causes foul smell and irritation in teeth. Could you please advise what could be done about this.

When i was a child, I would never brush the front teeth properly. As a result, the front teeth are yellow. Now that I have become conscious, I brush my teeth properly everyday. But the yellow colour is still there. Additional info: I have NEVER had any other issue with my teeth, no tooth cavities. I know i will have to consult a dentist. My questions: 1. What are some of the permanent whitening techniques that I can go for? 2. Is it possible for me to get 4 to 5 shades whiter teeth at least after whitening? 3. Could you PLEASE SUGGEST a name of a particular whitening toothpaste that would help get at least 2 shades whiter teeth.

Swollen Gums in mouth. Difficult to eat. Suffering for 3 days. Applied stolin but didn't have any improvement. Suggest me good tablet

Teeth pain in upper jaw .since yesterday morning........................................................

Cavity, Sweet tooth and hot/cold sensations. How to go about it? Planning to for checkup first. Zxc

On biting, my lower incisors hit inside back of upper incisors. I got my braces in lower set of teeth yesterday, I feel that my last molar tooth does not meet, and I am facing difficulty in chewing even the rice, as they just float around in my mouth. Is this common ? Or do I have to with little force for my molars to meet and eventually will it get normal , at least for food like boiled veg and soft chappati .

What are the symptoms of tonsillitis, I have a ton of pain in my throat, but it is not a sore throat... What should I do

How long it will take to correct the overcrowded teeth using quad heliz and using braces