No abstract available.
Head* ; Orthognathic Surgery* ; Posture* ; Prognathism*

Facial asymmetry is the most frequent disease in craniofacial deformities. And the primary causing area of that is mostly placing in mandible. That is to say, it is known that primarily, mandible grows excessively or deficiently, and other facial region involving maxilla undergoes compensatory growth secondarily, so asymmetric face develops. In facial asymmetry, the surgical correction of undergrowth is more difficult than that of overgrowth and the reason of it is the postoperative relapse caused by stress of surrounding soft tissues. It means the stress of surrounding soft tissues occurring after bone lengthening and reducing above stress is the same meaning with reducing postoperative relapse. Among various areas, mandibular ramus is the most difficult area to lengthen vertically and maintain its length. The reason of it is considered by many authors as the stress of surrounding pterygomasseteric sling which is enveloping lower border of mandible and interrupting elongation of ramal height. So we applied two different surgical procedures in which pterygomasseteric slings have different stress respectively to monkeys which have similar masticatory function and anatomy to human being and compared relapse by radiographic film and observed periodically the histochemical change of masseteric muscle fiber. So we could see the following results. The relapse was less in EVRO group in which we separated pterygomasseric sling in inferior border and didn't approximate muscle sling after vertical lengthening to minimize the stress of soft tissues than IVRO group in which we elongated ramal height preserving pterygomassetric sling. Of course, we could see a problem in EVRO group such as bone resorption in inferior border caused by uncovering the periosteum of inferior border. But we expect that such problem will be solved by developing periosteum substitutes for covering the exposed bone and minimizing the surgical trauma. In histochemical study of masseteric muscle fiber, the fiber constituents of EVRO group in which we minimized soft tissue stress was changed immediately after operation and maintained it for 1 year, whereas that of IVRO group in which we preserved soft tissue stress was changed in more portion after operation and recovered it by 1 year . By the histochemical results, we can see that the recovery of fiber constituents reflect the recovery of muscle stress and it is closely related with relapse phenomenon.
Bone Lengthening ; Bone Resorption ; Congenital Abnormalities ; Facial Asymmetry ; Haplorhini ; Humans ; Mandible ; Maxilla ; Periosteum ; Recurrence* ; X-Ray Film

PURPOSE: In Korea, the number of migrant workers is increasing. However, migrant workers have low job satisfaction due to poor working environment, and insufficient social support. This study aimed to investigate the role of social support for job satisfaction of migrant workers. METHOD: We have analyzed the survey data of 397 migrant workers collected from free clinic for migrant workers located in Seoul, Gyeonggi-do and Chungcheong-do. RESULT: When the migrant workers received monetary and emotional supports from supervisors and colleagues, their job satisfaction turned out to be significantly high. The factors that influence job satisfaction of migrant workers are as follows: involvement in manufacturing industry, over 9 hours of daily sleep, monetary and emotional support from supervisors. Their job satisfaction strongly influenced by these factors. CONCLUSION: Social support will increase job satisfaction of migrant workers and it will subsequently decrease job turnover rate and increase productivity as well as quality of life.
Efficiency ; Humans ; Job Satisfaction ; Korea ; Transients and Migrants

No abstract available.
Databases, Factual ; *Publishing

The juxtaglomerular cell tumor is a rare benign tumor which causes surgically correctable hypertension. We report a case of hypertension caused by juxtaglomerular cell tumor in a 17-year old man. He presented with hypokalemia, metabolic alkalosis and hyperreninemic hyperaldosteronism. Renal angiography showed no evidence of renal artery stenosis. Though no mass was suspected in renal angiography, CT scan showed a well demarcated mass, 3 cm in diameter, in the upper portion of left kidney, which was resected and diagnosed to be a juxtaglomerular cell tumor. After resection of the tumor, blood pressure was normalized with resolution of hypokalemia, metabolic alkalosis and hyperreninemic hyperaldosteronism.
Adolescent ; Alkalosis ; Angiography ; Blood Pressure ; Humans ; Hyperaldosteronism ; Hypertension ; Hypokalemia ; Kidney ; Renal Artery Obstruction ; Tomography, X-Ray Computed

PURPOSE: The objective of this study was to evaluate and compare the accuracy of impression body taking by the closed and the open tray impression technique with 3 types of impression tray. Individual tray, metal stock tray and polycarbonate tray were used. MATERIALS AND METHODS: Nine closed tray impressions were taken by individual tray, metal stock tray and polycarbonate stock tray, respectively with polyether impression material. 9 open tray impressions were also acquired by same manner. Precision analysis on the master models was performed by attaching the reference frameworks with alternate single screws and measuring the vertical fit discrepancy of respective analogues in working cast with a stereo microscope. Data were analyzed by 1 way ANOVA and independent t-test. RESULTS: The average fit accuracy of impression bodies was calculated. With the closed tray impression technique, there were significant statistical differences in vertical fit discrepancy according to the types of tray. The individual tray group showed the lowest value and the polycarbonate stock tray group represented the highest. With the open tray impression technique, there was no significant difference in vertical fit discrepancy. Significant statistical difference in vertical fit discrepancy was found between the open and the closed impression technique with the polycarbonate stock tray. CONCLUSION: From the results above, more precise impressions could be acquired by the rigid individual tray compared with the polycarbonate stock tray. It was hard to get consistent accuracy impressions by the closed tray impression technique with polycarbonate stock trays.
Dental Impression Technique ; Polycarboxylate Cement

The bite collapses due to posterior teeth loss or wear results in inadequate space for restoration and esthetic concerns. Increasing the occlusal vertical dimension to improve space deficiency rotates the mandible posteriorly, creating a gap between the maxillary and mandibular anterior teeth, leading to loss of anterior guidance. To solve this problem, the prosthodontics or orthodontics treatments are the commonly used methods for proper anterior guidance. However, it is reasonable to assume that the anterior teeth can naturally relapse to their original position when the occlusal force is eliminated. Therefore, this case report aimed to test whether natural relapse could recover the lost anterior guidance to develop a less invasive and more convenient treatment method.Digital superimposition was used to evaluate the changes in anterior teeth alignment to confirm the change of the recovered anterior guidance. The appropriate indications for this new treatment method were defined and applied clinically.

Stroke in young adults is uncommon and may require extensive evaluation to elucidate an underlying cause. A 21- year-old male professional golfer experienced left side weakness, dysarthria, headache during golfing. Magnetic resonance imaging (MRI) revealed broad ischemia on right basal ganglia, frontal and temporal lobes. Magnetic resonance angiography (MRA) and 4-vessel angiography revealed beading of right intracranial internal carotid and middle cerebral arteries which suggests fibromuscular dysplasia. We report a case of intracranial fibromuscular dysplasia without renal involvement resulting in cerebral infarction in young male professional golfer.
Angiography ; Basal Ganglia ; Carotid Artery, Internal, Dissection ; Cerebral Infarction ; Dysarthria ; Fibromuscular Dysplasia ; Golf ; Headache ; Humans ; Ischemia ; Magnetic Resonance Angiography ; Magnetic Resonance Imaging ; Male ; Middle Cerebral Artery ; Stroke ; Temporal Lobe ; Young Adult

PURPOSE: The purpose of this study was to compare the clinical results between the subacromial injection of the ketorolac and that of the corticosteroid in patients with subacromial shoulder impingement syndrome. MATERIALS AND METHODS: Twenty patients with shoulder impingement syndrome received an injection of 60 mg ketorolac and were evaluated in terms of visual analogue scale (VAS), range of motion (ROM) and Constant-Murley score. The outcomes are compared with the data of patients treated by 40 mg triamcinolone injection, retrospectively. RESULTS: There was no significant difference in the demographics, VAS, ROM, and Constan-Murley score between the two groups before the injection. At the 4 weeks follow-up, pain improvement was significantly greater in the corticosteroid group (2.7±1.53) than in the ketorolac group (4.9±2.08; p=0.001). However 12 weeks after the injection, there was no significant difference in pain improvement between the two groups (ketorolac: 2.9±2.32, corticosteroid: 2.6±1.82; p=0.707). The Constant-Murley score at the final follow-up improved from 33.5 to 52.1 in the corticosteroid group, and from 39.0 to 56.6 in the ketorolac group (p=0.677). ROM was increased in both groups, and external rotation was significantly greater in the ketorolac group than in the corticosteroid group at the final follow-up (ketorolac: 29.3°±9.90°, corticosteroid: 20.8°±7.99°; p=0.005). CONCLUSION: In this study, ketolorac provided an effect equivalent to triamcinolone in the treatment of subacromial shoulder impingement syndrome at 12 weeks after the injection. This result could offer better opportunities to manage patients with diabetes or local and systemic side effects of repetitive use of corticosteroids.
Adrenal Cortex Hormones ; Anti-Inflammatory Agents, Non-Steroidal ; Demography ; Follow-Up Studies ; Glucocorticoids ; Humans ; Ketorolac* ; Range of Motion, Articular ; Retrospective Studies ; Shoulder Impingement Syndrome* ; Shoulder* ; Triamcinolone

OBJECTIVE: To evaluate the overall profile of children with feeding disorders and their relationships to medical conditions in an outpatient feeding clinic of a tertiary hospital. METHODS: The medical records of 143 children who had visited the feeding clinic between January 2010 and June 2014 were reviewed retrospectively. The presence of a feeding disorder (feeding behavior disorder, dysphagia, and/or failure to thrive [FTT]) and the children's medical conditions were examined by a physiatrist. RESULTS: Half of the patients (n=74, 51.7%) were under 15 months of age, and 68 (47.6%) were born preterm. Ninety-three patients (65.0%) met the criteria for any combination of feeding behavior disorder, dysphagia, or FTT. Cardiorespiratory disease was the most common medical condition; children with this condition were more likely to show sensory food aversion and FTT. Feeding behavior disorders were significantly associated with gastrointestinal problems, and dysphagia was significantly related to almost all medical conditions. CONCLUSION: A multidisciplinary approach to children with feeding difficulties is proposed for comprehensive evaluation and treatment because combinations of feeding problems are very common among children. This overall profile could provide clinicians with a clear understanding of the complexity of feeding disorders and their relationships with various medical conditions in children.
Child ; Comorbidity ; Deglutition Disorders ; Failure to Thrive ; Feeding Behavior ; Humans ; Medical Records ; Outpatients ; Retrospective Studies ; Tertiary Care Centers