Hello sir , you have to willing in you and please self motivate and stop smoking as it’s not good for any aspect

Hello sir , incase of stains please visit the dentist and get a scaling and polishing. However u need to first stop smoking.

Visit a nearby dentist n ask for a scaling n polishing done

Get scaling done and stop smoking

You can schedule an appointment with the dentist for a session of teeth cleaning by a procedure called as scaling followed by polishing of the teeth. But it is my ethical responsibility to highlight that the bigger issue is the habit of smoking which should be quit as soon as possible before other Irreversible damages begin to take shape. Regards.

Hello, Get a round of deep scaling and polishing.If stains still persist,then get tooth whitening done.