Both the means available in stores and professional preparations used by dentists are effective. The difference lies in the concentration of the active substance - the commonly available agents have a lower concentration, so they require more sessions and may not cope with some discoloration. There is also a risk of uneven bleaching. Often, before bleaching, you need to remove sediment and tartar. In addition, the fillings are not bleached, which can cause a visual effect where the fillings appear darker than the teeth. Products available only at the dentist have a higher concentration, so that teeth whiten faster and more effectively. In addition, the doctor protects the gums with a special agent, which minimizes the risk of irritation. Before the procedure, a diagnosis is necessary in order to avoid uneven aesthetic effect. In our office we also make individual whitening splints, which increase the effectiveness and protect the gums.