发明名称 Method of heat treating gutta percha based material to improve the characteristics thereof for filling endodontically prepared root canals
摘要 Material having improved characteristics for filling endodontically prepared root canals is obtained by heat treating gutta percha based material at a temperature in the range of 210 DEG F. to 310 DEG F. for a period of two to twenty-four hours, the time being decreased as the temperature is increased.
申请公布号 US5372759(A) 申请公布日期 1994.12.13
申请号 US19930140782 申请日期 1993.10.21
申请人 JOHNSON, WILLIAM B. 发明人 JOHNSON, WILLIAM B.
分类号 A61C5/04;A61C13/00;(IPC1-7):A61C13/00;B29C71/02 主分类号 A61C5/04
代理机构 代理人
主权项
地址