A white and pleasant smile is very relevant today. Teeth whitening is one of the most demanded procedures in aesthetic dentistry. Whitening is possible with different methods and it takes about an hour spent in the chair, however, to ensure the safety of the procedure and to achieve the maximum result, it is necessary to prepare the oral cavity in advance, which includes the treatment of any existing dental issues and professional hygiene. In addition, aesthetic dentistry involves adjusting the shape, size, position or color of the teeth.