PURPOSE:To evaluate the effet of one-time one-abutment placement on peri-implant tissues.METHODS:Thirty-five patients with single posterior loss were collected,who received definitive abutment at the moment of implant placement.One day and after 1 year of implant loading,radiographic assessment of marginal bone level changes and clinical status of peri-implant soft tissues were conducted.Plaque index,pocket depth as well as sulcus bleeding index were assessed.RESULTS:During 1 year follow-up period after loading,no implant failure was observed.The mean marginal bone loss of implants were(0.225±0.1 13)mm mesially and(0.439±0.123)mm distally.Standard periodontal probes were used to measure plaque index,probing depth,and gingival crevicular bleeding index immediately after repair and 1 year later.CONCLUSIONS:In the posterior region,one-time one-abutment placement may better protect peri-implant tissues as an ideal treatment protocol.
Dental implantOne-time one-abutment placementMarginal bone loss