Sensitive Teeth Questions

bad odor is basically due to food debris or infected gums or periodontium, in that case you need professional cleaning and polishing followed by routine proper cleaning at home.

Apply fatkiri paste, rinse your mouth with warm salt water, with this you need to visit a dentist as soon as possible.

It may cost around 2000 by homoeopathic treatment.
You can consult me at Lybrate.
Till then use heclalva toothpaste.

Hello, If it is the last wisdom tooth then the best solution is to get it removed as there would be no space for that tooth to erupt properly. Grinding will not solve the problem and if there is a decay even after grinding the infection will keep causing pain. these are the assumptions on the basis of your question rest x-ray will only give the clear idea.
Thanks

broken tooth has been associated with sensitivity issues and sometimes with pain also. it is advised to restore it otherwise sooner or later you have to go for RCT.

Rinse your mouth with warm salt water, apply fatkiri paste, chew few leaves of guava, use sensodyne paste.

Toothpaste alone will never cure sensitivity.
It happens in tv only.
Take proper check up to find out the cause of sensitivity like dental caries or gingivitis etc.
Then take proper treatment.

It can be a dental cavity and may need proper treatment like rct or extraction.
Consult a dentist nearby.
Till then take pulsatilla 30 thrice.

You may need desensitizing procedures first later / whitening (bleaching) treatment. Cost rs 2000/ to rs25000/- advance procedures can be done with laser.

Take homoeopathic medicine
heclalva 30.
See if it helps.
For assured results consult and take proper homoeopathic treatment.