Reimplantation of avulsed teeth may rebuild post-traumatic occlusal function and restore patient appearance within a short period of time. The success of tooth reimplantation depends on theactivity of periodontal-ligament cells on the avulsed teeth, as well as the storage time and storage medium. Milk is inexpensive, readily available, and can be beneficial in timely saving of periodontal-ligament cell activity. The kinds of milk and the temperatures hane an influence on its potential to maintain the periodontal ligament cells. As a temporary storage medium, milk replenishment has little clinical significance. Before reimplantation, the avulsed teeth stored in milk must still be soaked in Hank’s balanced salt solution for 30 min to replenish depleted cell metabolites and promote proliferation and differentiation.
