Tooth and Mouth Problems

I went through the apicoectomy procedure 1 week back so how to know if procedure is successful and infection is cure completely?

I am having a pain for last 1 month behind jaw. Radiating till ear. Also having jaw pain and pain and feeling of pressure in lower molar. I am having a flap over my third molar as well. And that molar is decayed. Also the gum feels swollen and some part of the teeth is under the gum. What can it be. Please help. The pain is constant dull pain. Which increases while sleeping on one side of cheek. I have attached photo.

I got my teeth cleaning done as a result of gum bleeding and pain the doc also adviced gum laser on the left of the gum which was majorly effected but even after that.. A left tooth on the upper side and lower side both is slightly paining and the gum around it is swelled and paining & sensitivity but no cavities are visible.. Wat is the issue?

I am looking for complete dental cleanup package as few of my teeth are covered with some black patches which I couldn't get rid of.

I went to see a doctor and he advised me to have a Root canal treatment. Now the price that he told me was 1000 for cleaning/scaling, 3500 for Root canal, 7000 (Iron based crown) / 12000 for the Ceramic based crown). So, what I want to know is, are these prices fair ? Also, Will doing root canal help me ending my sensitivity and pain ? Which one is advisable, iron based crown or Ceramic based crown ?

I am having pain in upper left tooth and slight inflammation in the gum in that area since last 2 days. I am also having trouble in chewing from that side. What should be done to cure it?

Well as per my previous query I was told to visit dentist for cleaning and whitening my teeth .. I visited 4 dentist in which out of 3 told that it can not be white as this colour is by birth. They don't prefer for teeth whitening as it will not be effective after 2,3 months .

I need some pain killers to control tooth dismantle and tooth replantation also I have stich in my good dismantle

If there is any type of major deviation or rearrangement or defect in my jaw joint then what type of symptoms (externally and internally) I will observe? Or how can make conclusion that there is no such major defect in my tmj and I am curing from tmj disorder by splint therapy and orthodontic treatment? Please help me.

My treatment for tmj disorder has started many days ago at first by splint and then braces. How does splint therapy work for tmj disorder? If i have overbite or overjet problem will this therapy be effective for me? Please help.