Unsealing of tooth channels is performed in cases when the treatment of the tooth roots was carried out before. But for various reasons, inflammation of the tooth repeated under the seal. In such cases dentists in Wisconsin carry out unsealing of tooth channels, remove cavities, remove inflammation and than put a permanent seal again. The main reasons for unsealing of the tooth channels are poor oral hygiene, the presence of micro-cracks between the filling and the tooth, which stuck the smallest bacteria that patient can not remove using a toothbrush. In addition, the cause of inflammation of the channel of the teeth can be nonprofessional treatment of pulpitis, periodontitis, or cysts, granulomas.