| 摘要 |
The present invention relates to implants used in dental clinics where an upper prosthesis can be unlocked by unlocking a connection screw which connects a fixture to the upper prosthesis and can be prevented from being unlocked or released by connecting a metal-made screw locking tool with elasticity to the connection screw, thereby maintaining the tightness of the upper prosthesis connected to the implant by being directly connected to the connection screw. |
