What are dental cleanings (scale and polish) and why have them?
Prophylaxis removes plaque and tartar from the teeth (not the roots). This will make the gums and teeth healthier. A proper exam is necessary prior to teeth cleaning to ensure that periodontal disease does not go undetected. It is not uncommon for patients to note that teeth appear slightly more sensitive after a dental cleaning. The reason for this is that plaque and tartar coat the tooth surface and shield them from substances in the mouth. It is important for one to brush and floss after every meal to prevent buildup of plaque and tartar.
Ultrasonic instrument
Commonly used first is an ultrasonic instrument which uses tickling vibrations to knock larger pieces of tartar loose. It also sprays a cooling mist of water while it works to wash away debris and keep the area at a proper temperature. The device typically emits a humming or high pitched whistling sound. This may seem louder than it actually is because the sound may get amplified inside your head, just like when you put an electric toothbrush into your mouth.
The ultrasonic instrument tips are curved and rounded and are always kept in motion around the teeth. They are by no means sharp since their purpose is to knock tartar loose and not to cut into the teeth. It is best to inform the operator if the sensations are too strong or ticklish so that they can adjust the setting appropriately on the device or modify the pressure applied.
With larger deposits that have hardened on, it can take some time to remove these, just like trying to remove baked-on grime on a stove that has been left over a long time. So your cleaning may take longer than future cleanings. Imagine not cleaning a house for six months versus cleaning it every week. The six-month job is going to take longer than doing smaller weekly jobs.

Fine hand tools
Once the larger pieces of tartar are gone, the dental worker will switch to finer hand tools (called scalers and curettes in dental-speak) to remove smaller deposits and smoothen the tooth surfaces. These tools are curved and shaped to match the curves of the teeth. They allow smaller tartar deposits to be removed by carefully scraping them off with a gentle to moderate amount of pressure. Just like taking a scrubbing brush to a soiled pot, the dental worker has to get the areas clean and smooth.
Polishing
Once all the surfaces are smooth, the dental worker may polish your teeth. Polishing is done using a slow speed handpiece with a soft rubber cup that spins on the end. Prophylaxis (short for prophy) paste – a special gritty toothpaste-like material – is scooped up like ice cream into the cup and spun around on the teeth to make them shiny smooth.
