All children have an anxious period of infancy when their teeth begin to cut. The eruption of milk teeth is rather often poorly tolerated, brings troubles and unpleasant sensations not only to the child, but also to his parents. The kid usually feels pain, experiences insomnious nights, often cries, and refuses to eat. Parents are clearly worried about this behavior. A teether is just an effective device which helps to relieve this unpleasant condition, reduce itching, soreness of the gingivae. But the problem lies not only in the selection of a suitable teether, but also in the hygienic state maintaining of such devices.