Deep Cleaning Cost in 2026

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Deep cleaning cost by scope (2026 benchmarks)

The biggest driver of your bill is how much of your mouth needs treatment and how heavy the tartar is. The chart below puts the whole cost ladder on one scale — from a routine cleaning, to scaling and root planing per quadrant, to a full mouth, to the recurring maintenance you are signed up for afterward. Ranges are compiled from ADA fee data, AAP guidance and FAIR Health, deliberately free of any single clinic's commercial framing.

How SRP is billed: by quadrant, by CDT code

"Deep cleaning" is not one charge. Your mouth is split into four quadrants (upper right, upper left, lower right, lower left), and each is billed separately depending on how many teeth in it have disease:

• D4341 — SRP, four or more teeth per quadrant. The standard deep-cleaning code. This is what most full-mouth quotes are built from.
• D4342 — SRP, one to three teeth per quadrant. Used for a localized quadrant; it is billed lower than D4341 because fewer teeth are treated.
• D1110 — adult prophylaxis. The routine cleaning you are not getting if you need SRP. It only cleans above the gumline.

This is why two quadrants on the same invoice can cost different amounts: a quadrant with all teeth affected (D4341) is priced above a quadrant with only two affected teeth (D4342).

Why a deep cleaning costs more than a regular cleaning

A regular cleaning runs roughly $75-$200 for your whole mouth. SRP costs several times that for one reason: it is treatment for a disease, not maintenance.

Aspen Dental's published 2026 data puts the per-quadrant average near $289, with light-calculus quadrants around $210 and heavy calculus up to $435 — the spread the chart above captures.

Light vs heavy calculus: where your quote lands

Two patients can both "need a deep cleaning" and get very different prices. The variable is how much hardened tartar (calculus) sits below the gumline and how deep the pockets are.

• Light calculus, shallow 4mm pockets → lower end, roughly $150-$280 per quadrant.
• Heavy calculus, 5mm+ pockets with bone loss → upper end, roughly $280-$435 per quadrant, because it takes more time and instrumentation.

A dentist who measures your probing depths (the millimeter numbers called out during the exam) and shows you the X-ray bone levels is justifying which end you fall on. Ask to see both.

Insurance: typically ~80% basic, but watch the annual maximum

Unlike the routine cleaning most plans cover at 100%, SRP sits in the basic/periodontal tier:

• Coverage — commonly 50-80% after your deductible, once medical necessity (4mm+ pockets, bone loss) is documented.
• Annual maximum — a full-mouth case can eat much of a $1,000-$2,000 yearly cap, squeezing out other needed work.
• Frequency limit — usually one SRP per quadrant every 24 months.
• Two-calendar-year timing — splitting quadrants across a year-end boundary can tap two annual maximums.
• Pre-authorization — ask your office to submit one so you know your share before you commit.

The recurring cost nobody quotes: periodontal maintenance

This is the line most cost guides skip. After SRP you do not return to free regular cleanings — you are moved to periodontal maintenance (D4910), typically every 3-4 months at $115-$300 a visit.

Here is the math: at four visits a year you are looking at roughly $460-$1,200 annually. But most plans fund only two cleanings per year, so visits #3 and #4 are usually out of pocket — about $230-$600 every year, indefinitely. That recurring figure often outweighs the one-time SRP within a few years, and it is the real long-term cost of a deep cleaning.

What happens — and what it costs — if you skip it

Gum disease does not pause. Untreated periodontitis keeps deepening pockets and destroying the bone that holds your teeth, usually painlessly until it is advanced. The cost escalation is steep:

Saving the teeth you have for $600-$1,600 is dramatically cheaper than extracting and replacing them — one of the clearest cost cases in dentistry.

Optional add-ons you can decline

Not every line on an SRP quote is mandatory. These are commonly upsold and are reasonable to question:

• Localized antibiotic (e.g. Arestin) — best reserved for specific stubborn 6mm+ pockets, not "every tooth." Whole-mouth application can add hundreds to over a thousand dollars.
• Laser bacterial reduction — frequently $50-$150 and often not covered by insurance.
• Perio irrigation — much of this can be maintained at home with a water flosser.

A fair script: "I consent to the scaling and root planing today; I'd like to decline the laser and the antibiotic for now and reassess at my follow-up once I've healed."

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