Maintenance work on the ZORA databases is scheduled for Wednesday 22 May 2019 from 20:00-22:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Sahrmann, Philipp; Schoen, Patrizia; Naenni, Nadja; Jung, Ronald; Attin, Thomas; Schmidlin, Patrick R (2017). Peri-implant bone density around implants of different lengths: A 3-year follow-up of a randomized clinical trial. Journal of Clinical Periodontology, 44(7):762-768.