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Table 3 Mean crestal bone level changes in mm

From: Clinical and patient-reported outcome of implant restorations with internal conical connection in daily dental practices: prospective observational multicenter trial with up to 7-year follow-up

Bone level changenMeanSD
Insertion-loading103− 0.520.55
Loading-1-year follow-up93− 0.040.37
Loading-3-year follow-up90− 0.040.40
Loading-5-year follow-up86− 0.090.43
  1. For some patients no radiographs were available at the follow-up visits for various reasons (e.g., patient refusal for X-rays or not available from referring dentists)
  2. Negative value indicates bone loss