Teeth whitening is a simple process. Products contain one of two tooth bleaches. These bleaches break stains into smaller pieces, which makes the color less concentrated and your teeth brighter. This involves the plaque and tartar removal from all tooth surfaces. With larger deposits that have hardened on, it can take some time to eliminate. The number of times one needs to return to Dentist depends on how prevalent the case of gum disease is. Contained cases can be treated in a single scaling session. However, cases spread throughout the mouth generally take several visits to treat. Polishing is done using a measured speed hand piece with a soft rubber cup that spins on the end. Prophylaxis paste – a special gritty toothpaste-like matter – is scooped up like ice cream into the cup and spun around on the teeth to make them shiny smooth.