The clinical study on recurrent dislocation of the shoulder was performed on fourteen cases who were treated by Putti-Platt operation from July 1967 to November 1968. The cases studied were treated at the 17th Army Hospital in Kwang-ju and U.S. 121st Evacuation Hospital in Bu-pyung. Ages in initial dislocation were varied from 11 to 25 with an average of 18 years. Five cases of them were recurred over ten times prior to operation. On radiological findings, Hill-Sachs lesion has been revelaed in 57.1%. On pathological finding, Bankart lesion was seen in 78.5% and detachment of the glenoid labrum with capsular separation in 28.6%. No recurrence has been encountered in this s ries, and average rarige of abduction was gained upto 165 and external rotation 30°.
Clinical Study ; Dislocations ; Gwangju ; Hospitals, Military ; Recurrence ; Shoulder

No abstract available.
Frontal Sinus*

STATEMENT OF PROBLEM: Ceramic and composite resin have been used to fulfill the demand for esthetic prosthesis. However, ceramic is easy to break and wears off the opposite natural teeth. Conventional composite resin also has low abrasive resistance and color stability. Ceramic Optimized Polymer (ceromer) was developed in mid-1990s to overcome the shortfalls of ceramic and composite resin. Ceromer has similar abrasiveness with the natural tooth and has relatively high strength. Color stability affects esthetics and long-term prognosis of the prosthesis. PURPOSE: The purpose of this study was to compare color stability of ceromers(2 types : Artglass., Targis.) with ceramics(Vintage.-polishing, Vintage.-glazing). MATERIAL AND METHOD: The color difference(E*) was measured by spectrophotometer with different immersion time. Twenty disks, 3mm in thickness and 10mm in diameter, were fabricated for each specimen in shade A2(Vita Lumin shade guide). Specimens(5 samples in each group) were immersed in the food colorants(Red no.3, Yellow no.4, Blue no.1, Distilled water) for 24 hours, 48 hours and 72 hours respectively. L*, a* and b* value were measured with spectrophotometer (CM 503i : Minolta Co., Japan) and mean E* value was calculated for statistical analysis. RESULTS: The results of this study were obtained as follows. 1. The E* values of all test samples increased with the time of immersion. 2. The E* values of all materials increased in order of Distilled Water, Yellow no.4, Blue no.1 and Red no.3. There was significant difference between Red no.3 and the other food colorants(p<0.05). 3. The E* values increased in order of Vintage-glazing, Vintage-polishing, Artglass and Targis. There was significant difference between Vintage.-glazing and the other materials (p<0.05). CONCLUSION: By means of the above results, immersion time was found to be a critical factor for color stability of ceromer. For the long-term color stability of prosthesis it is recommended patients having ceromer prosthesis(Artglass., Targis.) to reduce the habitual intake of Red no.3 colorants con taining foods.
Ceramics ; Esthetics ; Food Coloring Agents* ; Humans ; Immersion ; Polymers ; Prognosis ; Prostheses and Implants ; Tooth ; Water

STATEMENT OF PROBLEM: Among the physical properties of adhesion luting cement, the aspect that requires the most important factor is the degree of solubility and water sorption. Dissolution or an inadequate due to excessive water sorption inside the oral cavity compromises the while concurrently increasing the susceptibility to secondary dental caries. Susceptibility to dissolution and difficulty of removing remnant cement from the gingival sulcus have hindered the use of dental resin cement in the clinical practice, but the improved characteristics of newer generation resin cements have interest in and enabled resin cements to be widely used in adhesion of fixed prosthesis, such as laminate veneers and all-ceramic crowns. PURPOSE: The purpose of this study is to compare and analyze the degrees of solubility and water sorption of a variety of resin cements widely used for clinical purposes with different curing methods. MATERIALS AND METHODS: Self-curing resin cements, Avanto(R), CandB(TM) CEMENT and Superbond CandB cements comprised group 1, 2 and 3. The dual-curing resin cements Panavia(TM) F, Calibra(R) and Variolink(R) II were divided into groups 4, 5, and 6, respectively. The investigation was carried out using disc-shaped specimens as specified by ANSI/ADA Specification No. 27. The degree of water sorption, water solubility and lactic acid solubility of each test group was analyzed statistically leading to the following conclusion. RESULTS: The degree of water sorption was shown to increase in the following order : group 6, 5, 4, 2, 1 and 3. There were significant differences between the water sorption of each group. Results of the degree of water solubility were shown to increase in the following order : group 6, 5, 4, 2, 1 and 3. Statistically significant differences were found between each group, with the exception of groups 1 and 3. Finally, the degree of lactic acid solubility was found to increase in the following order : group 6, 5, 4, 2, 3 and 1. Significant differences were found between each group. In general dual-curing resin cements displayed substantially lower values than self-curing resin cements with regard to water sorption, water solubility, and lactic acid solubility. CONCLUSIONS: From the results of this study, dual-curing resin cements show a significantly lower degree of water sorption and solubility than their self-curing counterparts. Clinically, when selecting resin cements, the product with a lower degree of water sorption and solubility are preferred. The results of this study indicate that the use-of dual-curing resin cements is preferable to self-curing cements.
Crowns ; Dental Caries ; Fibrinogen ; Lactic Acid ; Mouth ; Prostheses and Implants ; Resin Cements* ; Resins, Synthetic ; Solubility* ; Water*

PURPOSE: To investigate the localization and functional lateralization of the supplementary motor area (SMA) in motor activation tests in comparison to that of the primary motor area. MATERIALS AND METHODS: Seven healthy volunteers obtained echoplanar imaging blood oxygen level dependent technique. This study was carried on 1.5T Siemens Magneton Vision system with the standard head coil. Parameters of EPI were followed as ; TR/TE; 1.0/66.0 msec. flip angle : 90degree, field of view : 22cmx22cm, matrix : 128x128, slice number/slice thickness/gap : 10/4mm/0.8mm with fat suppression technique. Motor task as finger opposition in each hand consisted of 3 sets of alternative rest and activation periods. Postprocessing were done on Stimulate 5.0 by using cross-correlation statistics. To compare the functional lateralization of the SMA in the right and left hand tests, each examination was evaluation for the percent change of signal intensity and the number of activated voxels both in the SMA and in the primary motor area. Hemispheric asymmetry was defined as difference of summation of the activated yokels between each hemisphere. RESULTS: Percent change of signal intensity in the SMA (2.49-3.06%) is lower than that of primary motor area(4.4-7.23%). Percent change of signal intensity including activated voxels were observed almost equally in the right and left SMA. As for summation of activated voxels primary motor area had significant difference between each hemisphere but not did the SMA. CONCLUSION: Preferred contralateral dominant hemisphere and hemispheric asymmetry were detected in the primary motor area but not in the SMA.
Echo-Planar Imaging ; Fingers ; Hand* ; Head ; Healthy Volunteers ; Magnetic Resonance Imaging* ; Oxygen

STATEMENT of THE PROBLEM: The record base in fabricating procedures of the complete denture, as a temporary form for reproducing denture base, is used to record upper and lower jaw relation and to align artificial teeth and try-in it in the mouth. The accuracy of jaw relation record is affected by the accuracy, stiffness and stability of the record base. So, the accuracy of record base is the most important requirements of jaw relation records. PURPOSE of STUDY: The purpose of this study was to evaluate the gap that occurred over the palatal area of a maxillary record base fabricated with autopolymerizing resin and light-curingresin. METHODS AND MATERIAL: The maxillary record bases were fabricated out of autopolymerizing resin that is used the most frequently in clinics and light-curing resin that attracts special attentionfor its several merits. The light-curing resin was made by two kinds of polymerization methods, which are one step curing method and multiple step curing method. All record bases were cut in certain positions of the master cast 1 hour and 1 day later after fabrication and the accuracy of the master cast was measured and analyzed with a microscope. RESULTS: A pattern of gap formation between the record base and the maxillary cast was observed in all specimens. According to kinds of resins, autopolymerizing resin was significantly more accurate than light-curing resin. There was no statistical difference according to time lapse, and in all three groups, the maximum discrepancy occurred at the posterior border in the midpalatal region. CONCLUSLON: The autopolymerizing resin is better than light-curing resin, and multiple step curing method is more accurate than one step curing method when using light-curing resin.
Denture Bases ; Denture, Complete* ; Jaw ; Jaw Relation Record ; Mouth ; Polymerization* ; Polymers* ; Tooth, Artificial

Kawasaki disease (KD) is an immune-mediated disease which is a leading cause of acquired cardiovascular disease in developed country. Recently, tumor necrosis factor-alpha (TNF-alpha) blocker, infliximab has been considered a promising option for patients with refractory KD. Although chronic use of a TNF-alpha blocker could increase risk of opportunistic infections, a few studies have documented that use of infliximab was safe without serious adverse effects in patients with KD. We observed serious bacterial infection after infliximab treatment in an infant with refractory KD. Our patient was a 5-month-old male infant diagnosed with KD who did not respond to repeated doses of intravenous immunoglobulin. We effectively treated him with a single infusion of infliximab (5 mg/kg), but gram-negative (Acinetobacter lwoffii) septicemia developed after infliximab infusion. Therefore, we report a case of serious septicemia after treatment with infliximab, and suggest considering the risk of severe infection when deciding whether to prescribe infliximab to an infant with refractory KD.
Bacterial Infections ; Cardiovascular Diseases ; Developed Countries ; Humans ; Immunoglobulins ; Infant* ; Male ; Mucocutaneous Lymph Node Syndrome* ; Opportunistic Infections ; Sepsis* ; Tumor Necrosis Factor-alpha ; Infliximab

We present a case of acquired tracheoesophageal fistula (TEF) which was found during induction of general anesthesia for clipping of aneurysm. The patient had been intubated with endotracheal tube for 10 days and then done tracheotomy for 45 days. Thereafter, TEF was confirmed by MRI and treated with fistula repair and tracheal fenestration. Acquired TEF can occur under the condition of prolonged tracheal intubation with high cuff pressure (>30 mmHg) and can also result from intratracheal neoplasm, mediastinitis, and other tracheal or esophageal damages. If unrecognized during anesthetic induction, TEF can cause gastric dilatation and rupture, pulmonary aspiration and respiratory failure. So early diagnosis and proper management is very important whenever TEF is suspected during anesthetic induction.
Anesthesia, General ; Aneurysm ; Early Diagnosis ; Fistula ; Gastric Dilatation ; Humans ; Intubation ; Magnetic Resonance Imaging ; Mediastinitis ; Respiratory Insufficiency ; Rupture ; Tracheoesophageal Fistula* ; Tracheotomy

Proliferative scarring in the form of keloids and hypertrophic scars continues to be a clinical problem for some patients. The lack of an animal model for such scarring has been an obstacle to studying the biology and effective therapy of these entities. Consequently we created an accurate reproductive animal model to systematically study them. Human proliferative scars were explanted into flaps based on isolated vascular pedicles in congenitally rats. We compared the procollagen type III peptide levels of proliferative scar tissue before and after explanting. The procollagen type III peptide levels of explanted proliferative scar tissue remained increased as before explanting. Histological analysis of the explanted proliferative scar tissue revealed that all explants retained their original histotypic character even after 1 year. We could also retain the volume of implanted proliferative scar for 1 year and studied in vitro cellular proliferation. Fibroblast cultures from explanted scars demonstrated less aggressive growth characteristic than those from original surgical specimens. The advantages of this animal model are as follows: 1. The explants retain their histotypical character for a long period. 2. Placement of the explants outside the dorsum of a nude rat makes serial observation and measurement easier. 3. Agents under test can be injected into the explants through a catheter inserted into a single pedicle of island flap without the possibility of spreading systematically.
Animals* ; Biology ; Catheters ; Cell Proliferation ; Cicatrix* ; Cicatrix, Hypertrophic ; Collagen Type III ; Fibroblasts ; Humans ; Keloid ; Models, Animal* ; Rats ; Rats, Nude

No abstract available.