Abstract: The present invention provides a biological glass fiber for regenerative medical materials, comprising a biological glass or a biologically-inert glass made of a glass chemical composition. The glass chemical composition comprises in weight percentage, 5 to 25 wt% Na2O, 45 to 67 wt% SiO2, 15 to 25 wt% CaO, 2 to 6 wt% P2O5, 1 to 8 wt% MgO, 8 to 12.5 wt% K2O, 0.1 to 5 wt% total combined of non-toxic elements found in Group 5 and non-toxic elements found in Transition Metal Groups 3B, 4B and 5B, based on 100 wt% of the glass chemical composition; wherein the biological glass fiber forms a fiber configuration. The biological glass fiber is a soluble, resorbable, light transmittable and controllable absorption time regenerative material, and the biological glass fiber can mediate: therapeutic lymphangiogenesis, stem cell regeneration, bone cell regeneration and neurovascular regeneration, or it can be used as a cell carrier.

Abstract: An osteotome includes a connector, a first arm, a second arm, a third arm, a fourth arm and a cutting head. A coordinate system has an X axis, a Y axis, and a Z axis. The X axis, the Y axis and the Z axis are perpendicular to each other and intersect at an original point. The connector extends along the Y axis. The first arm, extending along the Y axis, connects to the second arm, extending along the plane with the X and Y axes. An angle between the first and second arms is within a range between 125 to 145 degrees. The third and fourth arms respectively extend along the Z axis and the X axis. The cutting head is parallel to the X axis and the Y axis so as to easily control the insertion angle of the osteotome for the patients with smaller face or smaller oral cavity.