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What is scaling and polishing?

Scaling and polishing is the professional clean that keeps daily brushing and flossing honest. It is two stages, done in the same appointment.

Scaling. Plaque is the soft, sticky film that forms on teeth within hours of cleaning. Left alone, minerals in saliva harden it into tartar, a crusty deposit that grips the tooth above and below the gumline. Once it has hardened, no toothbrush will remove it. An ultrasonic scaler vibrates it off with a fine water spray, and a hand instrument finishes the areas the tip cannot reach.

Polishing. A rubber cup and a mildly abrasive paste then lift surface stain from coffee, tea and smoking, and leave the enamel smooth. For stubborn staining the dentist may use an air polisher, sometimes called a prophy jet, which sprays a fine powder and water to clear stain from grooves and around orthodontic brackets.

Polishing does not lighten the natural colour of your teeth. It removes what has settled on the surface, which is why teeth often look brighter afterwards without any bleaching involved.

How much does scaling and polishing cost in Singapore?

At NoFrills Dental a scale and polish is $80 to $120 before GST. Where you fall in that range depends on how much has built up and how long the clean takes. A first visit also includes a $50 consultation, where the dentist examines the teeth and gums and tells you what is actually needed before any instrument comes out.

NoFrills Dental fees, before GST. Singapore GST has been 9 per cent since 1 January 2024, per the Inland Revenue Authority of Singapore. Deep cleaning below the gumline is a separate treatment and is quoted after a gum assessment.

MediSave does not cover a routine scale and polish. It applies to surgical treatment such as wisdom tooth surgery. Our MediSave page sets out what can and cannot be claimed.

Does scaling and polishing hurt?

For most people it is not painful, but it is not nothing either. You feel vibration, pressure and cool water, and a high pitched hum from the scaler. The tender moments come where the gums are already inflamed or where the root surface is exposed, and they pass as the tip moves on.

Two things make a real difference. Tell the dentist at the start if you have sensitive teeth or if a previous clean was uncomfortable, because the power setting, the water temperature and the order of work can all be adjusted. And come more often. The appointments people dread are usually the ones after several years away, when there is a lot to remove in one sitting.

How often do you actually need scaling and polishing?

Six months is the interval most Singaporean dentists recommend, and it is the one we use as a default. It is worth knowing what that recommendation rests on.

A Cochrane systematic review published in 2018 looked at adults without severe gum disease who already attended the dentist regularly. It found that a scale and polish on a fixed six or twelve monthly schedule made little or no difference to gum inflammation and plaque compared with cleaning only when the dentist judged it necessary. Tartar was slightly lower with scheduled cleans, and patients said their teeth felt cleaner, though the certainty of that evidence was low.

That finding is about the interval, not about whether the clean is worth doing, and it does not apply to everyone. A shorter interval of three to four months is usual if you have been treated for gum disease, if you build tartar quickly, if you smoke, if your diabetes is not well controlled, or if you are wearing braces or a retainer that traps plaque.

The other half of the answer is what else happens at that appointment. A six monthly visit is when early decay gets caught while it is still a small filling, when gum pockets get measured before they deepen, when a cracked tooth or a failing restoration is spotted, and when the soft tissues get a look for anything that should not be there. Our dental check-up page explains what that examination covers.

Scaling and polishing or deep cleaning: which do you need?

These are different treatments and the distinction matters for both your gums and your bill. A routine scale and polish cleans the crown of the tooth and just under the gum margin. Deep cleaning, properly called root planing or subgingival debridement, goes further down the root to remove deposits inside a gum pocket.

If your gums bleed every time you brush, if they have pulled back from the teeth, or if a previous dentist has mentioned pockets, the honest answer may be that a routine clean is not enough. That is a conversation for the gum treatment side of the practice, and persistent bad breath is often the first sign patients notice.

Scaling and polishing or teeth whitening?

Patients often book a clean hoping for the result that whitening gives, or book whitening when what they actually needed was a clean. Polishing removes what has stuck to the outside of the tooth: coffee, tea, red wine, tobacco. It restores the tooth to its own natural shade and no further. Teeth whitening uses a peroxide gel to lighten that natural shade itself, and it has no effect on plaque, tartar or gum health.

If you plan to do both, have the clean first. Whitening gel works on a clean tooth surface, not through a layer of stain and tartar.

What happens at your appointment

1. The dentist examines your teeth and gums and tells you what is there before starting, including anything that will need attention beyond the clean.
2. Ultrasonic scaling removes tartar and plaque with fine vibration and a water spray, worked quadrant by quadrant.
3. Hand instruments finish the areas the ultrasonic tip cannot reach cleanly, such as tight contacts between the front teeth.
4. Polishing with a rubber cup and paste lifts surface stain and smooths the enamel.
5. A final rinse, then specific advice: where you are missing with the brush, whether floss or interdental brushes suit your gaps, and when to come back.

After your scale and polish

Most people walk out and eat normally. If the gums were inflamed they may feel tender for a day or two and bleed lightly when you brush, which settles as the inflammation resolves. Cold sensitivity for a few days is common where tartar had been covering the root, and it usually fades.

Keep brushing gently but properly through that period, and start cleaning between the teeth if you were not already: floss or an interdental brush every day is what stops the deposit forming again. Call the clinic if bleeding is still there after two weeks, if a tooth becomes sensitive to biting, or if the gum feels swollen rather than simply tender.

Why the gum half of this matters

Singapore has more gum disease than most people expect. The 2019 National Adult Oral Health Survey, published in Community Dentistry and Oral Epidemiology in 2024, found that 77.6 per cent of adults had some form of periodontal disease and 56.9 per cent had moderate to severe periodontitis. Untreated decay was present in 34.8 per cent.

Gum disease is quiet. It rarely hurts until it is advanced, which is exactly why it is usually found at a routine clean rather than reported by the patient. Smoking makes it considerably worse, as our page on what smoking does to your teeth and gums sets out, and the state of your gums is tied to the rest of your health, which we cover in oral health and overall health. The wider oral health guide is a good place to start if you want the full picture.

Where to book

Scaling and polishing is done at every NoFrills Dental clinic: Suntec City, Marina Square, Marine Parade and Tanjong Katong in Singapore, and Sri Hartamas in Kuala Lumpur. Addresses and opening hours are on our clinics page.

If you are not sure whether you need a routine clean or a gum assessment, book the consultation and let the dentist look. You will be told which one you need, and quoted, before anything begins.

Frequently asked questions

Related reading

Sources: Inland Revenue Authority of Singapore, GST rate change (iras.gov.sg); Lamont T and colleagues, Routine scale and polish for periodontal health in adults, Cochrane Database of Systematic Reviews, 2018 (cochranelibrary.com); Sim C and colleagues, Findings from the 2019 nationally representative oral health survey for adults in Singapore, Community Dentistry and Oral Epidemiology, 2024 (onlinelibrary.wiley.com).