Can u smoke after having a pulpectomy?

Yes: The pulpectomy is sealed when completed and smoking doesn't affect it although smoking in general tends to delay healing.

Yes: There is no increased risk to your tooth due to smoking after a pulpectomy. There is a general risk to your dental and medical health, but you already knew that.

Yes: But it is not recommended because of the heat inside the mouth. Quit smoking it is bad for gums, teeth, heart, lungs, etc, etc, etc.