| 摘要 |
The adapter (10) has head portion (20), neck portion (30), and receiving portion (40) that are connected together. The neck portion is provided between the head portion and receiving portion. The receiving portion includes a jacket-shaped wall (42), and a recess (44) for receiving main section of dental implant. The receiving portion is detachedly connected with mounting portion of dental implant. The extending groove (32) is formed in neck portion, as weakened zone and a ring (90) is provided in weakened zone for counteracting the adapter deformation during torque transmission. |
