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. OU/Western Tech. Center Dental Hygiene Clinic: Advance screening required (Free of charge, call for appt.) Cleaning costs: Adult $10; Child $5 Sliding fee scale for qualified patients.