No abstract available.
Orthognathic Surgery ; Recurrence

Chin ; Humans ; Lip ; Witchcraft

No abstract available.
Antibodies* ; Asian Continental Ancestry Group* ; Chiroptera* ; Encephalitis Virus, Japanese* ; Encephalitis, Japanese* ; Humans ; Korea*

Chronic complication of diving and working in compressed air is dysbaric osteonecrosis. Dysbaric osteonecrosis could be diagnosed by simple bone x-ray, in the case of exposure history to dysbaric atmosphere. The case is 44 years old man who worked as a shell fish diver for 20 years. He was exposed dysbaric atmosphere during diving. He had bone necrosis in both femur head, both distal femur and proximal tibia. He had multiple attacks of decompression sickness. Other causes of bone necrosis are ruled out. We conclude that diver's bone necrosis is dysbaric osteonecrosis.
Adult ; Atmosphere ; Compressed Air ; Decompression Sickness ; Diving ; Femur ; Femur Head ; Humans ; Necrosis ; Osteonecrosis* ; Tibia

No abstract available.
Bone Plates ; Mandible ; Odontoma ; Transplants

Hemolytic disease of newborn due to Rhesus incompatibility occurs mostly by anti-Rh(D) antibodies. But recently, because of Rh(D) immune globuin prophylaxis, Rh(D) incompatibility is decreased and importance of minor group incompatibility is increasing. The majority of minor blood group incompatibilities are anti-c, anti-E or anti-Kell, but hemolytic diseases caused by combination of these antibodies are relatively rare. The 21 day-old male neonate was admitted because of pallor and poor feeding for 2 days. Laboratory data showed severe normochromic and normocytic anemia with increased reticulocyte and bilirubin. Patient's and his mothers blood type was B, Rh(D) positive. Minor blood groups of mother's and sons were different and anti-c and anti-E antibody were detected in mother's serum. After transfusions of two times with anti-c and anti-E free B, Rh(D) positive blood, the baby was discharged at 11th hospital day with good general condition.
Anemia ; Antibodies ; Bilirubin ; Blood Group Antigens ; Blood Group Incompatibility ; Erythroblastosis, Fetal ; Humans ; Infant, Newborn* ; Male ; Mothers ; Pallor ; Reticulocytes

Mandibular condylar fracture is common in mandibular fractures. Unlike other facial, skeletal fractures, most of mandibular condylar neck or head fractures are treated with closed reduction and subsequent functional therapy is essential for preventing complications including ankylosis, arthrosis and growth disturbance. From January, 2000 to September, 2002, we have treated 15 cases of mandibular condylar fractures with closed reduction by using functional appliance with bite block. Among these cases, we report a case of 14-year-old female with mandibular condylar neck fracture, resulted in good clinical and radiographic progress.
Adolescent ; Ankylosis ; Female ; Head ; Humans ; Mandibular Fractures ; Neck

No abstract available.

We observed the effect of application of n-PTFE on mandibular bone defects in the rabbit. GTR is based on the hypothesis that during wound healing, non-osteogenic cells are mechanically blocked from entering a bone defect. This allows the slower-migrating mesenchymal cells from the surrounding bone and marrow, having osteogenic potential, to move the defect site. Bilateral through & through defects, 8mmx4mm in size, involving the inferior border of mandible, were created in the mandible angle of 15 rats. The experimental side was applied with high-density n-PTFE membrane, with the opposite side serving as a control. In the first week of the early experimental period, the bone defects of experimental groups were filled with highly vascularized fibrous connective tissue showing prominent osteoblastic activity with osteoid formation, whereas the defects of control were replaced by dense fibro-muscular tissue without osteoblastlf activity. After 3 weeks, the experimental group revealed well formed bone trabeculae and fibro-vascular marrow within surrounding membrane. With time the amount of new bone was decreased with increase of hematopoietic marrow, and the cortical plate composed of dense mature bone was more thicker. In the whole experimental periods, the inflammation and foreign body reaction were not found around the inserted n-PTFE membrane. After removal of membrane there was marked remodeling of newly formed bone by active osteoclasts in periosteal soft tissue, which decreased the bone volume apparently. These findings suggest that n-PTFE has biocompatibility, flexibility, and rigidity and offer rapid bone regeneration within limited area by the membrane. On the other hand, the early removal of membrane caused reduction of bone volume by the osteoclastic resorption. Thus, the time of removal may be more important factor for maintenance of regenerated bone volume.
Animals ; Bone Marrow ; Bone Regeneration ; Connective Tissue ; Foreign-Body Reaction ; Hand ; Inflammation ; Mandible ; Membranes ; Osteoblasts ; Osteoclasts ; Pliability ; Rabbits* ; Rats ; Wound Healing

This study was performed to evaluate the clinical features and treatment results on 55 temporomandibular disorder patients who had treated by conservative treatment using occlusal splint. The results were as follows; 1. The ratio of men to women was about 1:2.2 and most of the patients were second and third decades. 2. Pain was the most frequent symptom, followed by clicking and mouth opening limitation. 3. The number of acute and chronic groups on the basis of 6 months duration of symptoms were similar. 4. Most of patients had Angle's Class 1 molar relationships(78.2%), followed by Class 3 and Class 2. 5. Centric Relation splints were used alone for treatment of 34 patients and 21 patients were treated with Centric Relation splints and Anterior Repositioning splints. The treatment duration of the patients who had complained pain was average 9.8 weeks and 6 patients of them had slight pain continuously during follow-up. 6. Eleven patient's maximum mouth opening who had mouth opening limitation was improved from 30.7mm to 43.0mm during procedures.
Centric Relation ; Female ; Follow-Up Studies ; Humans ; Male ; Molar ; Mouth ; Occlusal Splints* ; Splints ; Temporomandibular Joint Disorders*