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Alloplastic materials offer a number of advantages over bone autografts in the reconstruction of craniofacial defects. These include: lack of donor site morbidity, unlimited quantities of available material, and the possibility to conform exactly to the defect. An ideal bioresorbable material would degrade slowly, and have osteoconductive properties to(More)
Between January 1996 and December 2001, 72 out of 354 patients were included in a retrospective study analysing the outcome of repaired orbital wall defects. Selection was dependent on the availability of pre and postoperative CT scans and on ophthalmologic examination. In particular, orthoptical assessment was performed up to 1 year after operation. In 72(More)
This article reviews 31 condylar neck fractures in 30 patients stabilized with different types of plates with emphasis on complications associated with different types of plates. Indications for stabilization were predominantly bilateral fractures, shortening of the ascending ramus due to lack of occlusal buttressing and condylar neck fractures associated(More)
OBJECTIVE A new technique for producing splints for orthognathic surgery using a 3D printer is presented. STUDY DESIGN After 3-dimensional (3D) data acquisition by computerized tomography (CT) or cone-beam computerized tomography (CBCT) from patients with orthognathic deformations, it is possible to perform virtual repositioning of the jaws. To reduce(More)
3D/2D patient-to-computed-tomography (CT) registration is a method to determine a transformation that maps two coordinate systems by comparing a projection image rendered from CT to a real projection image. Iterative variation of the CT's position between rendering steps finally leads to exact registration. Applications include exact patient positioning in(More)
The fibular flap can be used for a variety of indications. Recently, the treatment of four patients with severely atrophied upper jaws using a method to prefabricate the vascularized fibular graft has been published. This technique consists of a two-stage operation procedure that allows simultaneous prosthodontic rehabilitation and immediate placement of(More)
Despite impressive results, distraction osteogenesis of the mandible is still compromised by difficulties with vector control. Because of the action of the masticatory muscles, the gonion angle has the tendency to open, resulting in an open bite. We report two patients, aged 10 and 12 years, who developed a severe open bite during mandibular distraction. As(More)
The skeletal reconstruction of post-traumatic orbital deformities includes the zygomatic complex, the nasoethmoid area and the internal orbit. Repositioning of the malpositioned zygoma is the key element and the first step. Due to remodelling processes, most of the landmarks for proper positioning are lost, leaving the lateral orbital wall as the only(More)
Bicycle accidents in adults are common and concern frequently injuries to head and face. 150 of totally 216 patients with cycle accidents in a six month' prospective study at the Basel University Hospital showed face and head trauma. 85 severe facial injuries treated operatively by the Clinic for Reconstructive Surgery between 1985 and 1989 are analysed in(More)
INTRODUCTION Three-dimensional repair of the zygomatico-maxillary defect calls for an elaborate technique to achieve facial symmetry and correct globe position. We present a technique, which combines the use of a free vascularized soft tissue flap and free bone grafts for repair of composite zygomatico-maxillary defects. PATIENTS Three patients that(More)