Clinical study on using acellular dermal graft to close immediate implant wound

Objective To clinically and histologically evaluate the results of using acellular dermal graft to close immediate implant wound.Methods From July 2005 to December 2005 a total of 10 patients underwent immediate implant treatment were treated with acellular dermal matrix to close immediate implant wound.Among them 4 were men.The age range was from 26 to 59 years old(mean 56.3).Ten implants were placed and restored.All the cases were followed up at least 12 months(24～29 months).Clinical examination was conducted to follow up the healing of the acellular dermal graft and Verhoeff's-van Giesen stain was used for histological evaluation.Results Graft rejection was not found and the healing was uneventful except dehiscence occurred in 1 case 20 days after surgery.After rinsing,healing abutment was connected directly and osseointegration was not affected afterwards.The accellular dermal graft did close the immediate implant wound and incorporated the peri-implant soft tissue based on the histological evaluation.During the last reexamination no implant loss was observed and the peri-implant soft tissue was healthy and stable.Conclusion It is effective to close the immediate implant wound by using the acellular dermal graft,and the short-term clinical result was predictable.