To be judged freezing preservation method of the tooth extraction body and forma

摘要

PPROBLEM TO BE SOLVED: To accelerate an autotransplantation of an extracted tooth by efficiently performing each of processes from the extraction of tooth, recovering the extracted tooth, freezing, preserving, thawing and coming to transplanting. PSOLUTION: The method for freeze-preserving the extracted tooth of a person whose tooth is extracted for autotransplanting it to the person whose tooth is extracted is executed by passing through the processes of (1) a process of housing the extracted tooth in a container filled with preserving liquid for conveyance at the extracting place, (2) a process of conveying the container housing the extracted tooth to a freeze-preservation institution, and (3) in the freeze-preservation institution, a process of transferring the conveyed extracted tooth from the preserving liquid for conveyance to freezing protective liquid, preliminary cooling to 0 to -10°C, followed by slowly cooling down -65 to -80°C, then rapidly cooling to the preservation temperature of -145 to -155°C and preserving it at the preservation temperature. PCOPYRIGHT: (C)2005,JPO&NCIPI