This is a SLIDING SCALE clinic. The costs for clinic services are based on either your income or they offer type of financial assistance. Contact the clinic directly to discuss prices for individual services which vary. Sliding Scale does not necessarily mean free. Dental Department offers screenings, exams, diagnosis, and basic restorative services such as fillings. Specialty services including periodontal treatment, root canals, crown and bridge work, teeth whitening and dentures. You may qualify for a number of low-cost health insurance programs for people who live in Massachusetts.