1 A standard teeth cleaning by a dental hygienist can cost $75-$200, depending on the dentist's office and local rates. 2  CostHelper readers report paying $80-$175, or an average cost of $127 for just a routine cleaning.3  Frequently a teeth cleaning appointment will also include dental X-rays and an exam by the dentist. Dental insurance typically covers 100% of the cost of a teeth cleaning once or twice a year as necessary preventive care, but not more often -- and some plans may have a maximum amount they will pay for a cleaning, which can be less than what the dentist charges.