H Niederdellmann

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Various methods have been advocated for the treatment of fractures of the angle of the mandible, emphasizing the complexity of the problem. A functionally stable osteosynthesis can be achieved in such fractures with a solitary lag screw. This technique meets the principles of rigid internal fixation and achieves maximum stability with a minimum of implant(More)
Since the early 1990s, there have been continuous improvements in the software available for planning orthognathic surgery. This study investigates the precision of profile prediction by version 1.51 of the Dentofacial Planner (DFP). Orthognathic operations in 40 patients with different types of dysgnathia were evaluated. The preoperative and postoperative(More)
Functional and esthetic dysgnathia surgery requires accurate planning and precise surgical technique. Programs that simulate such surgery have thus become increasingly important. These are useless, however, when there is no technique for reproduction of surgical planning in the patient. This can be mediated by a surgical model. The present study(More)
The treatment of fractures and osteotomies of the mandible and the midface show very different problems. The mandible must be treated in a stable and the midface in a static way. Due to the different bio-mechanics and topography of these bony structures, the advantages and disadvantages of treating a fracture in the maxillo-facial-region by the means of(More)
A clinical follow-up of 238 patients confirmed the good results of root amputation with titanium pin for apical closure. An analysis of reoperations because of failure of primary surgery rendered similarly good results. Therefore the use of a titanium pin will not impair the success of secondary surgery for root amputation which shows good results most of(More)