-
公开(公告)号：US5035618A
公开(公告)日：1991-07-30
申请号：US487586
申请日：1990-03-02
IPC分类号： A61C5/02
CPC分类号： A61C5/023
摘要： The end of an instrument for the treatment of dental root-canals is coated with a layer of anti-friction material. The low coefficient of friction of the antifriction material and the fact that it renders the end of the instrument non cutting or non abrasive facilitates greatly the penetration of the instrument in the dental root-canal, especially when the canal is curved, and has the result that the instrument does not bite into the wall of the canal and does not exert thereon an action which is greater on the outside of the curve than on the inside thereof.
摘要翻译： 用于治疗牙根管的器械的末端涂有一层抗摩擦材料。 减摩材料的低摩擦系数和使仪器末端不切割或不磨蚀的事实大大有助于仪器在牙根管中的穿透，特别是当管道弯曲时，具有结果 仪器不会咬入管道的壁并且不会施加在曲线外侧比在其内侧更大的作用。
-
2.发明授权Set of instruments of increasing dimension for the boring of radicular dental canals 失效一组增加尺寸的仪器，用于钻孔牙根管
公开(公告)号：US5676541A
公开(公告)日：1997-10-14
申请号：US557630
申请日：1995-11-14
IPC分类号： A61C5/02
CPC分类号： A61C5/023
摘要： A set of instruments for boring of radicular dental canals, in which the diameter D1 of each instrument, measured at the root of the pointed end portion thereof, varies according to a geometrical progression as well as the diameter D2 of each instrument measured at the root of the cutting edges. Hence, the variation is more pronounced for the diameters D2, larger than the diameters D1, than it is for the diameters D1. The conicity of the stem of the instruments increases in this manner from one instrument to another, so as to permit a the dentist to form the radicular canals with a specially funnelled shape which is best suited for some obturations, especially those to be treated with gutta-percha.
摘要翻译： 一组用于钻孔牙根管的器械，其中在其尖端部分的根部处测量的每个器械的直径D1根据几何进展以及在根部测量的每个器械的直径D2而变化 的切割边缘。 因此，对于直径D2比直径D1更大的变化比直径D1更大。 仪器的茎的锥度以这种方式从一种器械增加到另一种仪器，以便允许牙医形成具有特殊漏斗形状的针状运河，该形状最适合于一些阻塞，特别是用gutta治疗的那些 -percha
-
搜索结果
2 条记录 (耗时 0.009 秒)
