View clinical trials related to Facial Asymmetry.
Filter by:To compare safety, patient satisfaction, and technical correction between a limited and full facelift, patients meeting strict clinical and safety criteria for both types of facelift will be randomly assigned to have one of these procedures. In the context of this study, a limited facelift is done in the office under local anesthesia, and a full facelift is done in the hospital or ambulatory surgical center with either general anesthesia or intravenous sedation.
Functional rehabilitation and quality of life after maxillofacial surgery have been emphasized in recent years. It depends mainly on outcomes of maxillofacial reconstruction and rehabilitation involving functions, esthetics, psychology acceptance and resocialization. Tooth loss, alveolar and maxillary bone resorption or changes of the hard palate cause facial asymmetry in patient with maxillofacial surgery. The facial soft tissue over the defect become recessed as a result of loss of lip and buccal support which lead to decrease the quality of life and psychological disorders. Prosthetic intervention with maxillary obturator prosthesis is necessary to restore the contours of the resected palate and to recreate the functional separation of the oral cavity and sinus and nasal cavities. The purpose of this study is to investigate the influence of maxillary obturator on facial morphology in patient with unilateral maxillary defect by using 3 dimensional digital stereophotogrammetry compared to the intact side of the same patient
To estimate the prevalence of facial asymmetry
Hypothesis：Computer-aided design virtual mandibular position is feasible for costochondral graft growing and occlusion stabilizing in the one-stage treatment of children temporomandibular joint ankylosis (TMJA) or condyle absence with jaw deformity. Methods: The inclusion criteria is children patients younger than 12 years old with unilateral TMJA or condyle absence. A virtual mandibular position is designed preoperatively according to the CT data of jaw and dentition. 3D printed templates and occlusal splints are used to guide the costochondral graft and mandibular position. During surgery, the affected ramus is reconstructed with costochondral grafting under the virtual mandibular position. After surgery, the occlusal splint is fixed to maxilla at least one month, and then, replaced by orthodontic functional appliance to promote downward growth of the maxilla. Occlusion, facial symmetry, costochondral graft growing would be evaluated and analysed until adulthood.
The purpose was to assess the accuracy and clinical validation of virtual planning and surgical template in mandible distraction osteogenesis. Patients with hemifacial microsomia were enrolled. Virtual planning and simulation were performed on three-dimensional models. Distraction was simulated on virtual model and the new morphology of the mandible was predicted. The position and direction of the distractor was determined to achieve the optimal morphology. The templates were designed based on virtual planning and manufactured using three-dimensional printing technique. The template is designed to assist the surgeon to perform the osteotomy and predrill the screw holes to guide the distractor position. The outcome evaluation was completed by comparing planned outcomes with postoperative outcomes. Linear and angular differences for the distractor was measured.
The aim of this study is to evaluate the effect of Intravenous iron isomaltoside on maintaining hemoglobin concentration in patients undergoing bimaxillary orthognathic surgery. Fifty-eight patients, aged 19 to 40 years, scheduled for Bimaxillary orthognathic surgery will be divided into monofer (n=29) and control (n=29) groups. Randomly selected patients of the ulinastatin group are given intravenous iron isomaltoside. In contrast, patients in the control group receive an equivalent volume of normal saline as a placebo. The primary endpoints are postoperative hemoglobin concentration.
A computational model of human sound production based on high quality anatomic measurements and physical laws of sound propagation cannot be accomplished without a comprehensive data set including both 3D-images of the speaker's anatomy and the simultaneous recording of speech. Since the computational model has separate models for the vocal folds and the vocal tract, patients undergoing an orthognathic surgery is an optimal test object for the model development. Vocal folds remain unchanged while substantial changes take place in the vocal tract. Moreover, since the aim of the research is to predict acoustic changes in speech due to operations in head neck area, the orthognathic patient group is par excellence an example of such a prediction problem. If the model can be shown to give valuable information pre-operationally, many other patient groups could benefit from the results.