Implant thread exposure: opinions?

Authors

We did a regular 4.5 ×10 mm implant in 46 region. The buccal bone was fractured coronally thus we grafted the area with a mix of autogenous and allogenous bone graft and a collagen membrane was placed. The implant was submerged. And flap closed with silk sutures. Unfortunately patient visited us after 14 days for suture removal. At this time we soft tissue receded and few implant threads exposed. The implant is not mobile at present. Should I take it out or any way out there to salvage?