PLACEMENT OF IMPLANTS INTO FRESH EXTRACTION SITES - 4 TO 7 YEARS RETROSPECTIVE EVALUATION OF 95 IMMEDIATE IMPLANTS

A 7-YEAR FOLLOW-UP OF IMPLANTS plated immediately after tooth extracti on into fresh extraction sites is reported. Small autogenous bone chip s (from bone adjacent to Implant sites) were grafted into the defect b etween the implant and the socket walls when needed, Closure of the wo und was obtained by coronal repositioning of the flap, and no membrane s were used. Care was taken to minimize hematoma formation under the f lap during healing by part-time use of removable prosthesis with thick soft linings after implant surgery. At second stage surgery, mucoperi osteal flaps were apically repositioned for maximum attached gingival width and to reconstruct the vestibule, Minor complications such as ex posure occurred in 16% of cases, Implant mean 5-year cumulative surviv al rate was 95%, There was no implant loss after loading. The results indicated that implants placed into fresh extraction sites grafted wit h autogenous bone chips will heal predictably.