What is scaling and polishing?
Scaling removes hardened plaque that brushing cannot shift; polishing smooths the tooth surface afterwards so deposits build up more slowly.
Why it is needed
Plaque that is not brushed away hardens into calculus, usually behind the lower front teeth and around the back molars. Once it has hardened, no toothbrush will remove it. The rough surface holds more plaque, which irritates the gums and causes bleeding and, over time, gum disease.
What the appointment involves
The dentist or hygienist uses an ultrasonic scaler with a fine water spray, and hand instruments for the tighter areas. Polishing with a rubber cup and paste follows. A routine appointment usually takes twenty to forty minutes.
Scaling does not weaken or thin the enamel, and it does not create gaps between the teeth. Spaces that appear afterwards were already there, hidden under the deposits.
Will it hurt?
Most people find it uncomfortable rather than painful. If the gums are inflamed or the roots are exposed, the dentist can use local anaesthetic. Mild sensitivity to cold for a few days afterwards is normal and settles.
How often
Every six months suits most people. Heavy tea or coffee drinkers, smokers, betel chewers and anyone with gum disease are often advised to come every three to four months.
This guide is general information only and is not a diagnosis. For advice about your own teeth, see a registered dentist — find a dental clinic in Sri Lanka.