ABSTRACT
PURPOSE: This study was to investigate the effect of the digital computer-assisted technique in orthognathic surgery. METHODS: Twelve patients from January 2008 to December 2011 with jaw malformation were treated in our department. With the help of CT and three-dimensional reconstruction technique, 12 patients underwent surgical treatment and the results were evaluated after surgery. RESULTS: Digital computer-assisted technique could clearly show the status of the jaw deformity and assist virtual surgery. After surgery all patients were satisfied with the results. CONCLUSIONS: Digital orthognathic surgery can improve the predictability of the surgical procedure, and to facilitate patients' communication, shorten operative time, and reduce patients' pain.
Subject(s)
Orthognathic Surgery , Orthognathic Surgical Procedures , Humans , Image Processing, Computer-Assisted , Imaging, Three-Dimensional , Pain, Postoperative/prevention & control , Surgery, Computer-AssistedABSTRACT
PURPOSE: To evaluate the effect of computer-aided surgical techniques in surgical treatment of cranio-maxillofacial fibrous dysplasia. METHODS: Twenty-two patients from January 1999 to December 2012 with cranio-maxillofacial fibrous dysplasia were treated in our department. According to the patients' specific conditions, surgeons designed surgical programs, and used computer-assisted surgical techniques to produce skull model and navigation template individually. The effects after surgery were evaluated. RESULTS: Twenty-two patients with resection of the bone lesions restored facial symmetry partially. The patients were followed up for 3 to 36 months, and the treatment effects were satisfactory. CONCLUSIONS: With preoperative planning, intraoperative navigation and postoperative prediction, computer-aided surgery shows its great value in improving the accuracy of cranio-maxillofacial surgery, shortening operating time and restoring facial symmetry. It is regarded as a valuable and safe surgical technique in cranio-maxillofacial surgery. Supported by Beijing Natural Science Foundation (7112124).
Subject(s)
Facial Bones , Fibrous Dysplasia, Polyostotic , Skull , Surgery, Computer-Assisted , Humans , Plastic Surgery ProceduresABSTRACT
This study was designed to investigate the effects of occlusal splints in the treatment of sagittal fractures of the mandibular condyle in children. From January 1995 to December 2011, 37 sagittal fractures of the mandibular condyle in 30 patients aged 4-8 years old were included in this study. All the patients were treated with 1-2mm occlusal splints in the molar region. The mouths of the patients were kept slightly open by the occlusal splints for 3-6 months, and we reviewed the clinical and radiological remodelling of the affected condyles after treatment. Excellent (n=20) and good (n=10) clinical outcomes were achieved with full radiological remodelling seen in 19 and partial remodelling in 11. Treatment with occlusal splints is effective in delivering good results and function with minimal morbidity in children with sagittal fractures of the condyle, while permitting ongoing remodelling and growth in the short term.
Subject(s)
Mandibular Condyle/injuries , Mandibular Fractures/therapy , Occlusal Splints , Bone Remodeling/physiology , Cartilage, Articular/diagnostic imaging , Cartilage, Articular/pathology , Child , Child, Preschool , Female , Follow-Up Studies , Humans , Image Processing, Computer-Assisted/methods , Imaging, Three-Dimensional/methods , Male , Mandible/growth & development , Mandibular Condyle/diagnostic imaging , Mandibular Condyle/growth & development , Mandibular Fractures/diagnostic imaging , Orthodontic Appliance Design , Radiography, Panoramic/methods , Range of Motion, Articular/physiology , Temporomandibular Joint Disc/diagnostic imaging , Temporomandibular Joint Disc/pathology , Tomography, Spiral Computed/methods , Treatment OutcomeABSTRACT
OBJECTIVE: To compare the efficacies of non-surgical treatment for pediatric and adult sagittal fractures of mandibular condyle. METHODS: From January 1985 to December 2010, our department treated 67 cases (82 sides) sagittal fractures of mandibular condyle with occlusal splint at a height of 1-2 mm in molar region for six months or other non-surgical treatment. Their clinical and radiological remodeling of affected condyles after treatment were reviewed at six mouths, one year and each year after treatment. They were divided into 2 groups according to age. There were 28 patients (34 sides) aged over 12 years and 39 patients (48 sides) under 12 years. During a follow-up period of 2-25 years, mandibular activity, mouth opening and parallel CT scan of condylar morphological alterations were examined. RESULTS: Under 12-year-old group:good mandibular function was observed in 39 patients. Maximal mouth opening over 35 mm was achieved at 6 months.Only 11 of 39 patients had deviation on mouth opening at 6 months.Radiological studies showed that 32 condyles were complete remodeling and 16 condyles were partial remodeling. Poor remodeling was not observed. Over 12-year-old group:Ankylosis occurred in 4 joints. And 15 of 28 patients had deviation on mouth opening at 6 months.Radiological studies showed the remodeling of condyles was complete (n = 6), partial (n = 16) and poor (n = 12) respectively. CONCLUSION: Mandibular functional recovery and condylar remodeling are better in children with more powerful healing and reconstructing capacities.
Subject(s)
Mandibular Condyle/pathology , Mandibular Fractures/therapy , Occlusal Splints , Adolescent , Adult , Aged , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Treatment Outcome , Young AdultABSTRACT
OBJECTIVE: To investigate the clinical results of occlusal splint in the treatment of sagittal fracture of mandibular condyle (SFMC) in children. METHODS: Thirty-nine patients (48 condyles)aged 3-8 years with sagittal fracture of mandibular condyle were included in this study. All the patients were treated by occlusal splint.Slight open occlusion was maintained by occlusal splint for 3-6 months. Clinical and radiological examination was performed six mouths and every year after treatment. RESULTS: Good mandibular function was observed in 39 patients. Maximal mouth opening over 35 mm was achieved at 6 months. But 11 of the 39 patients presented with deviation on mouth opening at 6 months. The radiology showed an complete remodeling in 32 condyles (28 patients) and partial remodeling in 16 condyles (11 patients). Poor remodelling was not observed in any patients. CONCLUSIONS: Good clinical results can be obtained by using occlusal splint in the treatment of pediatric sagittal fracture of mandibular condyle.
Subject(s)
Mandibular Condyle/injuries , Mandibular Fractures/therapy , Occlusal Splints , Child , Child, Preschool , Dental Occlusion , Female , Follow-Up Studies , Humans , Male , Mandibular Condyle/physiology , Mandibular Fractures/diagnostic imaging , Mandibular Fractures/physiopathology , Recovery of Function , Tomography, X-Ray ComputedSubject(s)
Carcinoma, Squamous Cell/therapy , Genes, p53 , Genetic Therapy , Mouth Neoplasms/therapy , Viral Vaccines/therapeutic use , Adenoviridae/genetics , Animals , Apoptosis/drug effects , Carcinoma, Squamous Cell/genetics , Carcinoma, Squamous Cell/metabolism , Cell Cycle/drug effects , Clinical Trials as Topic , Genetic Vectors , Humans , Mouth Neoplasms/genetics , Mouth Neoplasms/metabolism , Mutation , Tumor Suppressor Protein p53/genetics , Tumor Suppressor Protein p53/metabolism , Viral Vaccines/pharmacologyABSTRACT
PURPOSE: To compare the therapeutic efficacy between surgical and non-surgical treatment on mandibular condylar fractures. METHODS: Patients with mandibular condylar fractures who were treated in our department with complete record from January, 1987 to June, 2009 were collected in this study. We conducted a retrospective analysis on the pathogenic factor, type, treatments and therapeutic efficacy of mandibular condylar fractures to compare the therapeutic efficacy between surgical and non-surgical treatment. RESULTS: A total of 228 patients were included in this study,among which 130 patients were treated by surgical procedure and the other 98 patients were treated by non-surgical treatment. All the patients were followed up for 1.5 years at average. Postoperative opening wide in the midline, occlusal relation and radiographs were examined to evaluate the therapeutic efficacy. Both surgical and non-surgical treatment showed good result. CONCLUSIONS: Surgical and non-surgical treatment for mandibular condylar fracture can achieve good results, when indication is selected appropriately. Non-surgical treatment is acceptable for young children or preschool children, whose mandibular condylar can accommodate well because of their vigorous growth and development and reconstruction function.
