some dentists have payment plans - or their own credit card with very low interest rates.
Dental Alliance in Rochester
Wentworth Douglas Community Health in Dover
Goodwin Community Health in Somersworth
^ all use a sliding income scale to base fees and charges
I don't know where you are, but a little research and a few phone calls might help you find the right dentist.
Tamworth Dental Center
^
participate in Care Credit plans, and offer a reduced rate to low-income individuals without insurance.