Objetive To investigate the effect of elastic pivot stable biteplate on treating irredueible temporal bone displacement of the temporomandibular joint. Methods Twenty-eight cases of irredueible temporal bone displacement of the temporomandibular joint treated with the elasticpivot stable biteplate from 2000 to 2004 were summarized. The ages of the patients ranged from 15 to 58 yeras includding 11 men and 17 women.Results All the patients were treated for 1 month and followed up for 3 to 6 months. The effective rate was 87.51%. The patients who had shorter course of diseases obtained better effect than the patients who had longer courses of diseases. Conclusion Elastic pivot stable biteplate is an effective alternative for treating irredueible temporal bone displacement of the temporomandibular joint and it exerts better effect on the patients that have short courses of diseases.
OBJECTIVE: To investigate the availability and effect of skin stretch in closing the firearm injured soft tissue defect. METHODS: Eight white pigs with firearm injured soft tissue defect were divided into 3 groups. Each group I and group II had 3 pigs which were performed skin stretch. The control group had 2 pigs without stretch. The average diameter of the defect in three groups was (7.3 +/- 0.2) cm, (9.1 +/- 0.3) cm, (7.3 +/- 0.2) cm respectively, and the site of defect was on the lateral thigh and buttock. RESULTS: Skin stretch could make a visible reduction of the wound. It was possible to close the wound by direct traction when the diameter of the buttock wound was less than 7 cm, and when the diameter of the lateral thigh wound was less than the radius of thigh. The skin stretch should not last more than 7 days and the best effect appeared in 4 to 5 days after performing the skin stretch. CONCLUSION: The skin stretch can be applied in the repair of the firearm injured soft tissue defect. It has many advantage compared with the tradtional treatment.
【Abstract】 Objective To study a new method of alveolar cleft bone graft repair. Methods From April 2005to August 2006, 26 cases (30 sides) of alveolar cleft were treated with trabecular substance of self-il ium combined with the decalcified dentinal matrix of human (DDM). There were 16 males and 10 females, aged 6-12 years. Unilateral alveolar cleft was involved in 22 cases, bilateral alveolar cleft in 4 cases. All cases were accompanied by nasal wing collapse, 5 by deciduous tooth retention, 3 by malposed teeth and 1 by tooth deformity. Anterior occlusal radiographs and panoramic oral radiographs were taken to observe union and bone absorption before and after operation. Results Twenty-three patients achieved heal ing by first intention, oronasal fistulas were closed successfully. Infection occurred in one bilateral alveolar cleft case and bone tissue exposure in 2 cases. Wound healed by rinse or dressing change and inunction with MEBO. The X-ray films after operation showed bone bridge formation in the alveolar cleft. The stabil ity and continuity of body of maxilla were resumed. Four cases (6-9years old) were observed 6.5 months, 22 cases (9-12 years old ) were observed 8.6 months. According to Bergland for evaluation,the X-ray films after 3 months of operation showed 16 cases (16 sides) in class I (53.3%), 7 cases (8 sides) in class II (26.7%),2 cases (4 sides) in class III (13.3%), and 1 case(2 sides) in class IV (6.7%). The overall survival ratio of alveolar bone grafting was 93.3%, and the cl inical success ratio was 80%. Conclusion The DDM is good in alveolar cleft bone graft repair. It is better than using self-il ium only cl inically.