I recently placed an immediate 4x13mm implant in the right maxillary incisor region following a traumatic avulsion. The primary stability was 30Ncm. I did not raise a flap because the area was lacerated. I noted that the facial bone was intact. The gap distance for the implant was small, so no bone graft was placed. A resorbable collagen membrane was placed and closed for submerged healing. From the periapical x-ray, the implant seems too deep. But, actually it is only 1mm subcrestal at the midfacial. Is this too deep? What would be an ideal depth in a case like this? Should I anticipate any prosthetic problems when restoring it? Your feedback would be appreciated.