O-Zone toothbrush with gold ions. For daily, constant use for brushing teeth and oral care, two-level bristle system, bristles with gold ions. Suitable for sensitive teeth. An innovative system of double bristles: the top layer is a thin soft bristle, thoroughly but gently, cleans all hard-to-reach places, interdental spaces, gingival areas, where caries is most often formed. The bottom layer is medium-hard bristles with a rounded surface, which allows you to hold the toothpaste and clean the depressions of the chewing surfaces of the teeth. The content of Gold ions in the bristles provides antibacterial cleanliness of the entire oral cavity, stimulates blood circulation in the periodontium. Recommended for the prevention of cervical caries.