Scaling and root planing typically costs $200 to $300 per quadrant without insurance, and your mouth has four quadrants, so a full-mouth deep cleaning can run $800 to $1,200 or more. With dental insurance, your out-of-pocket share drops significantly, often to $25 to $55 per quadrant depending on your plan. The final price depends on how many quadrants need treatment, whether you have insurance, and where you live.
Cost Per Quadrant vs. Full Mouth
Dentists price scaling and root planing by quadrant (upper left, upper right, lower left, lower right) rather than as a single flat fee. There are also two billing codes that affect cost: one for quadrants where four or more teeth need treatment, and another for quadrants with only one to three affected teeth. The fewer teeth involved, the lower the per-quadrant charge. At the University of Colorado’s dental clinic, for example, the listed fee is $285 per quadrant for four or more teeth and $207 per quadrant for one to three teeth.
Not everyone needs all four quadrants treated. If gum disease is limited to one side of your mouth, you might only pay for two quadrants. Your dentist determines how many quadrants need treatment based on pocket depth measurements, which are the millimeter readings they call out during your exam. Pockets of 4mm or deeper are the most commonly recognized threshold for recommending the procedure, though the exact cutoff varies between dental offices and insurance companies.
What Insurance Typically Covers
Most dental insurance plans classify scaling and root planing as a “major” or “basic” service and cover it at 50% to 80% of the allowed fee. Under one 2025 plan through Covered California, for instance, the copay is $55 per quadrant when four or more teeth are treated, and $25 to $30 per quadrant for one to three teeth. A full-mouth deep cleaning under that plan would cost roughly $100 to $220 out of pocket.
Coverage varies more than you might expect. The American Dental Association notes that dental plans base coverage on the employer’s purchased policy rather than on clinical need, which means two people with the same insurance company can get different decisions on the same procedure. Some plans require specific pocket depth measurements before they’ll approve the claim, and a 4mm pocket that gets approved for one patient may be denied for another with the same readings.
There’s also a frequency limit to be aware of. Most plans only cover scaling and root planing once per quadrant every 24 months. If your dentist recommends retreatment within that window, you’ll likely pay the full cost yourself.
Cost Without Insurance
Without insurance, expect to pay $150 to $350 per quadrant at a private dental office, with the national average sitting around $200 to $300. Full-mouth treatment across all four quadrants runs $600 to $1,400 depending on your region and the severity of the gum disease. Offices in major metro areas tend to charge at the higher end of that range.
Many dental offices offer payment plans or in-house membership programs for uninsured patients. These memberships typically charge an annual fee in exchange for discounted rates on procedures, and scaling and root planing is often included at a reduced price. It’s worth asking about these before scheduling.
Dental Schools as a Lower-Cost Option
Dental school clinics offer the same procedure at steep discounts because the work is performed by students under faculty supervision. The University of Colorado’s dental school, for example, lists scaling and root planing at $285 per quadrant at full price but offers discounts of 45% to 55% depending on the clinic. That brings the per-quadrant cost down to roughly $130 to $160, or $520 to $640 for a full mouth.
The trade-off is time. Appointments at dental schools take longer because students work more slowly and their work is checked at multiple stages. You may also need to be flexible with scheduling. But the clinical quality is high, since every step is reviewed by an experienced faculty member.
Additional Costs After Treatment
The initial scaling and root planing isn’t the only expense to plan for. After treatment, you’ll need periodontal maintenance visits, which are more thorough than a standard cleaning and are typically scheduled every three to four months. Most insurance plans require a waiting period of 8 to 12 weeks before they’ll cover the first maintenance visit.
Periodontal maintenance visits generally cost more than a regular cleaning, usually $150 to $250 without insurance. Your plan may cover them the same way it covers preventive cleanings, or it may apply them to your major services benefit at a lower reimbursement rate. These visits replace your regular cleanings for as long as your dentist determines you need them, so they become an ongoing cost. Before starting treatment, ask your dental office to run a pre-authorization with your insurance so you know exactly what your share will be for both the initial procedure and the follow-up visits.