Tooth bleaching is a current aesthetic trend which lightens the basic colour of the teeth. There are various bleaching techniques ranging from those performed in the dental office to those performed at home. Regarding the origin of discolorations, oral cavity condition, indications and contraindications, the doctor of dental medicine chooses in collaboration with the patient the most appropriate whitening technique. “Take-home” is an effective and simple bleaching technique performed by patients at home using trays, supervised by the dentist. Before the bleaching process, it is necessary to resolve the oral cavity health issues and perform the professional cleaning of soft and hard tooth deposits using power-driven and hand instruments. After bleaching old fillings may be replaced with new ones of the matching colour. Bleaching is not recommended for patients with periodontal disease. The most commonly used material is 10 – 16 % carbamide-peroxide. Its concentration may be gradually increased thus avoiding the side effects such as tooth sensitivity and gingival irritation. The bleaching procedure usually lasts 10 to 14 days per jaw. The aim of this article is to present a currently very popular "take-home" bleaching technique as one of several possible options of tooth bleaching.