Review on Electric toothbrush Oral-B Smart 4 4900, black/pink by Minoru Koshida ᠌

The set includes two brushes: pink and black, a charger and two brand new nozzles, as well as a container for storing individual nozzles for four family members. 2 minutes are allotted for brushing the mouth, after which several intermittent signals are given, but the brush does not turn off, but continues to work, 2 minutes is considered the minimum time for brushing your teeth. Every thirty seconds, the brush gives a signal that it is time to brush another part of the tooth surface of the mouth. There are three brushing modes: Daily brushing, Whitening, mode for sensitive areas of the oral cavity "For sensitive teeth". If you press the start button during cleaning, the delicate cleaning mode is activated, if you press the start button again, the whitening mode is activated. The built-in pressure sensor turns off the pulsation with strong pressure on the brushes on the teeth, guaranteeing the safety of use. The blue hairs on the brushes fade over time, which is a signal to replace the brush heads. The bristles on the brushes are positioned at such an angle that they clean dirt from the most hard-to-reach corners of the mouth and gums. The round shape of the brush heads cleans each tooth from all sides. After using this brush, the teeth become smooth, there is no trace of plaque left, the purity of breath lasts longer. Teeth really whiten.