Karl-Erik Kahnberg

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27 patients subjected to various orthognathic surgery procedures were studied preoperatively and during a period of 18 months postoperatively by a team of psychologists to evaluate the patients' own opinions concerning the indication for surgery, information about the surgical procedure, the postoperative period and the long-term aesthetic and functional(More)
The masticatory system was examined, clinically and radiographically, in 14 children, 8 teenagers and 14 adults, 15 years after conservatively treated condylar fractures. In children, no major growth disturbances were observed and in most cases, there were no signs of the earlier fracture and the function of the masticatory system was good. In teenagers,(More)
The aim of the study was to investigate the recurrence rate of keratocysts based on a material with a follow-up of at least 5 years, and to evaluate the relationship between different features of these cysts and their recurrence. It was found that of 75 keratocysts with follow-up times ranging from 5 to 17 years (mean 8.3), 32 (43%) recurred. The cumulative(More)
PURPOSE To evaluate treatment outcome with Zygoma fixtures (Nobel Biocare, Göteborg, Sweden) with regard to fixture survival, patient satisfaction, and function of prosthesis replacement. MATERIALS AND METHODS The treatment outcome of 76 patients treated with 145 Zygoma fixtures at 16 centers was evaluated. Patient's and dentist's evaluations of the(More)
Binder's syndrome or maxillonasal dysplasia is a malformation characterized by an extremely flat and retruded nose. Severe cases of the syndrome do also have a retrognatic maxilla often combined with an open bite deformity which demands a combined surgical solution with both maxillary osteotomy and secondary nose correction. The two-stage surgical procedure(More)
Thirty patients with extremely resorbed maxillae had reconstructive bone grafts from the ala iliaca and endosseous implants in a one-stage procedure. The first ten patients constituted a development group and the following 20 patients a routine group. The marginal bone level and implants success rate was evaluated in a prospective long-term follow-up for a(More)
PURPOSE The purpose of this clinical investigation was to evaluate the treatment outcome with zygoma implants with regard to implant survival, patient satisfaction, and function of prosthesis replacement after 3 years. PATIENTS AND METHODS The treatment outcome of 76 patients treated with 145 zygoma fixtures at 16 centers was evaluated with regard to(More)
Combined horseshoe-shaped iliac bone grafts and Brånemark fixtures were used to rehabilitate patients with severely resorbed maxillae. Twenty patients were followed-up by computed tomography (CT) examination with axial slices to assess the fixture sites and to study the changes in height and width of the bone graft 3 weeks and 3, 6, 12, and 24 months(More)
A surgical procedure for the rehabilitation of severely resorbed maxillae is described. Twenty-five patients, made up of a development group of 5 and a routine group of 20, were treated with Le Fort I osteotomy using interpositional bone grafts from the iliac crest and, in a second stage, titanium implants. Altogether, 181 Brånemark implants were placed,(More)
Thirty patients with severely resorbed edentulous maxillae underwent combined treatment of iliac bone onlay graft and titanium implants. The patients were followed for 3 years. They were radiographically examined before surgery to evaluate the bone volume at the intended implant sites. Only 13/156 implant sites were suitable for implant insertion. The bone(More)