Dental Cleaning in Canada: Scaling Units, Costs & How Often

Scaling Units Explained

One scaling unit = 15 minutes of active scaling (tartar removal) by the dentist or hygienist. Your bill reflects how much buildup you have, not a fixed price:

• 1–2 units — light buildup, routine maintenance
• 3–4 units — moderate buildup, the most common adult cleaning
• 5–6 units — heavy buildup, or it's been years since your last visit
• Deep cleaning (scaling and root planing) — 4–8+ units across multiple visits, for gum disease

Per-unit prices follow provincial fee guides: roughly CA$54 per unit in PEI up to CA$87 in Alberta, with Ontario around CA$65–$70. So a typical 3-unit cleaning runs about CA$162–$262, and a routine visit with exam and X-rays usually lands between CA$250 and $500 all-in.

Always ask for the estimate in units — that's the language every clinic uses, and it's the only way to compare quotes apples to apples.

Regular Cleaning vs Deep Cleaning

Don't confuse the two — they're different treatments for different problems:

• Regular cleaning (prophylaxis/scaling): for healthy gums or mild buildup. The 1–4 unit appointment described above.
• Deep cleaning (scaling and root planing, SRP): for gum disease with deep pockets and bone loss. The hygienist numbs the area and cleans below the gumline, root surfaces included. It's billed at the same per-unit rate (CA$54–$87), but typically needs 4–8 units across 2–4 appointments — so roughly CA$200–$700 total depending on province and severity. CDCP covers SRP within its 4-unit annual cap for adults 17+; units beyond that need preauthorization.

If a clinic recommends SRP, ask to see the pocket-depth measurements (4mm+ pockets are the usual trigger) — it's the standard of care for periodontitis, but you deserve to see the numbers.

How Often Should You Go?

The old "every 6 months" rule is a starting point, not a law:

• Every 6 months — the standard recommendation for most adults
• Every 12 months — fine for low-risk patients with healthy gums (your dentist will tell you if you qualify)
• Every 3–4 months — common during active gum-disease treatment

Your hygienist decides based on tartar accumulation, gum pocket depths, and bleeding — not the calendar alone. Skipping cleanings doesn't save money: a CA$200 cleaning today prevents a CA$1,500 root canal later.

What a Checkup Appointment Includes

A standard recall visit typically bundles:

1. Examination — the dentist checks teeth, gums, tongue, and soft tissues (oral cancer screening is part of this)
2. X-rays — bitewings every 12–24 months; a panoramic image every 3–5 years or as needed (CA$80–$200)
3. Scaling — tartar removal, billed per unit as above
4. Polishing — removes surface stains
5. Fluoride — optional but recommended, especially for cavity-prone patients

CDCP Coverage for Cleanings

The Canadian Dental Care Plan covers preventive care, but with frequency limits:

• Ages 17+: 4 units of scaling (including root planing) per 12 months, no preauthorization needed; polishing limited to half a unit per 12 months; fluoride once per 12 months
• Ages 12–16: 1 unit of scaling per 12 months
• Ages 0–11: half a unit per 12 months

Coverage is paid at the CDCP fee schedule: 100% of eligible fees for family income under CA$70,000, 60% for CA$70,000–$79,999, 40% for CA$80,000–$89,999. If your clinic charges above the CDCP rates, you cover the gap — ask whether the clinic "accepts CDCP fee guide" before booking.

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