Bone quality at the implant site after reconstruction of a local defect of the maxillary anterior ridge with chin bone or deproteinised cancellous bovine bone

At the time of placement of the implants the grafting material (either chin bone or Bio-Oss®) is still not fully replaced by new vital bone. In case of Bio-Oss®, most of the grafting material is even still present. Despite these differences, the 1-year clinical results were very good and comparable between the various grafting techniques applied.