Hi there, Well if the decay (hole) is not very deep, you may go for filling of the tooth.
Filling is done after the removal of all the decayed part from inside. It’s the not a painful procedure.
It may cost you anywhere between 500-2500 depending upon the tooth, hole size, filling material and the skill of the doctor.
Regards
Dr. Mehul Chawla
Next Steps
Reach a dentist and get the tooth filled.
Health Tips
Proper brushing habits and scaling every 6 months decrease the chances of decay and improves your overall health.
You can youtube (Family Dentist Channel) to learn about proper brushing techniques.