A routine dental cleaning without insurance can cost $75 to $200, with an average cost of $125. Depending on where you live or the dental professional's experience and training, the amount may vary. Depending on the level of cleaning you need, the procedure may cost more or less. In addition to polishing the visible surface of the teeth, deep cleanings smooth the surface of the roots to help treat gum disease. The treatment usually takes several hours and costs $150 to $300 without insurance. A deep cleaning may be significantly more expensive if you request anesthetics. There are many dental insurance plans that cover 100% of the cost of routine preventive dental care. Regular dental cleanings are considered preventive care, so you may receive at least one cleaning each year for free under most plans.