I recently placed a straumann implant 12mm Bone level, I decided to take periapical to assess positioning before having torqued it completely crestal, silly. After taking the periapical I struggled to torque it to the crest and even tried to untorque it but to no avail. Im not sure in the heat of the moment why I didn’t use the motorized handpiece instead. Eventually I left it and placed a cover screw with about almost one thread exposed, now I’m concerned this may lead to early implant failure due to chances of fibrous encapsulation.
Unless they have changed their instruments it requires a special reverse torque tool to reverse a Straumann fixture…you should be able to torque it down by hand with even more force than what the handpiece will produce so I can’t imagine you not utilizing the motor has anything to do with a likely incomplete osteotomy…
There a thousands of successful implants without every thread embedded in bone so I would not lose any sleep over the fear of fibrous encapsulation. If this fixture fails I still wouldn’t blame the incomplete insertion but rather bad luck and statistics.