首页>
外国专利>
Dental hand piece for a dental instrument to remove material working of a tooth root canal has a setting device to selectively activate and deactivate an arrangement for reducing the torque
Dental hand piece for a dental instrument to remove material working of a tooth root canal has a setting device to selectively activate and deactivate an arrangement for reducing the torque
An arrangement is provided for limiting or reducing the torque formed by an overload coupling arranged in the handpiece or a electrical control device for controlling the electrical drive current for an associated motor (7). The arrangement is selectively activated or deactivated by a setting device (12).
展开▼