Simulation of naturally appearing enamel in fixed prosthodontics could be achieved with all ceramics. The purpose of this study was to investigate the stain resistance of 4 different all ceramics materials (In-ceram, IPS Empress, Celay, Vintage). Forty specimens were prepared using manifacture's instruction and the samples were divided into two groups. The specimens for one group were glazing and those for other group wee ground to remove the glazing layer. All specimens were immersed in methylene-blue for 24hours. The color values for each specimen was measured with colorimeter (Mode Tc-6Fx, Tokyo Denshoku Co.) prior to and after immersion in methylene-blue. The following conclusions were drawn from this study. 1. The stain resistance of glazing ceramics was higher than that of unglazing ceramics. 2. The changes of E* and L* values were revealed in Vintage and unglazing Celay. 3. The changes of a* values were revealed in unglazing vintage, Celay, In-cream. 4. The changes of b* value were revealed in Vintage, IPS Empress and unglazing Celay.
Ceramics* ; Crowns* ; Dental Enamel ; Immersion ; Prosthodontics

Meconium peritonitis is an aseptic peritonitis caused by spill of meconium in the abdominal cavity through one or several intestinal perforations which have taken place during intrauterine life or early neonatal life. We experienced three cases of meconium peritonitis with ileal perforation in two cases 1 day-old male neonate and 2 day-old male neonate, respectively, which had the chief complaint of vomiting and abdominal distension. Literatures are reviewed, briefly.
Abdominal Cavity ; Humans ; Infant, Newborn ; Intestinal Perforation ; Male ; Meconium* ; Peritonitis* ; Vomiting

BACKGROUND: Fear of dental treatment is a very real problem for many people. Very young patients or children that are mentally or physically handicapped have various problems that preclude routine dental treatment in the office and require general anesthesia for extensive dental restoration. In America, outpatient operations are performed in thousands of dental offices annually, but there is no report about outpatient general anesthesia in Korea. METHOD: A review of forty children treated under outpatient general anesthesia for extensive dental treatment between 1994 and 1996 inclusive was carried out to assess the patient selection, anesthetic method, recovery time and complication. RESULTS: The mean age was 8.4 years, and twenty-five percent of the patients were autism. The length of the postoperative observation period before discharge was 3.2 hours, and postoperative fever was major complication. CONCLUSION: For extensive dental treatment in handicapped children, we suggest that outpatient general anesthesia can provide reasonably safe treatment, while reducing its expense and requiring less hospital bed space.
Americas ; Anesthesia, General* ; Autistic Disorder ; Child* ; Dental Offices ; Disabled Children ; Disabled Persons* ; Fever ; Humans ; Korea ; Outpatients* ; Patient Selection

Many kinds of different treatment options for fecal incontinence such as biofeedback therapy, anterior or posterior sphincteroplasty, pelvic floor repair, gracilis or gluteus muscle transposition have been introduced. However, appropriate indications for these treatment options have not yet been delineated up to now. PURPOSE: The aim of this study was to access the preoperative severity of fecal incontinence by physiologic tests to give an idea that indications of appropriate selection criteria and parameters for assess the outcome could be simultaneously considered by preoperatively objective physiologic data. MATERIALS AND METHODS: From January 3, 1997 to, August 1, 1997 all patients with fecal incontinence who visited colorectal clinic in the Department of Surgery, Korea Veterans Hospital, were classified into two groups according to the severity of fecal incontinence (0~20): Group I (1~9), Group II (10~20) and compared them with the results of physiologic tests: anorectal manometry, endorectal ultrasound (ERU), cinedefecography, and pudendal nerve terminal motor latency (PNTML). Statistical analysis was performed by Student's-t test, and Chi-square test and p<0.05 was considered significant. RESULTS: The number of GI was 25, and GII was 22. There were no differences between the two groups in terms of age (GI: 57.7+/-14.5, GII: 61.4+/-14.0years), gender (male: female, 19:6, 16:6), cause (neurogenic; 11/25 (GI),7/22(GII), postanal surgery; 6/25,6/22) obstetric trauma (2/25, 2/22), anal trauma (1/25, 1/22) diabetes melitus (1/25, 2/22), rectal prolapse (2/25, 1/22), and others (2/25, 3/22), duration of fecal incontinence (64.4+/-82.2, 48.7+/-65.3 months), high pressure zone (3.3+/-1.7, 3.5+/-1.4 cm), mean resting pressure (50.5+/-27.0, 51.9+/-18.7 cm H2O), maximal resting pressure (88.4+/-50.6, 89.4+/-41.8 cm), maximal squeezing pressure (150.6+/-71.0, 129.7+/-59.5 cm H2O), rectoanal inhibitatory reflex (13/21, 8/21 positive), sensitivity (37.5+/-15.2, 41.8+/-29.0 cc), compliance (19.0+/-14.5, 21.4+/-39.4 cc/cm H2O) in anorectal manometric findings, anal sphincter defect (13/21, 15/22 positive), size of defect (60+/-26.30degrees, 71 +/-30.8degrees/360degrees), thickness of the external anal sphincter (3.46+/-0.78, 3.84 +/-1.02 cm), thickness of internal anal sphincter (1.58+/-0.79, 1.74+/-0.81 cm) in ERU, anorectal angle in rest (85.2+/-28.0degrees, 97+/-22.9degrees), squeeze (72+/-27.1degrees, 82 +/-19.7degrees), push (100+/-43.9degrees, 117.9+/-34.5degrees), length of perineal descent in rest (3.7+/-1.2, 3.6+/-1.7 cm), squeeze (2.9+/-1.5, 2.7+/-1.5 cm), push (7.9+/-3.5, 6.6+/-2.6 cm) in cinedefecography. However, rectal capacity in manometry (212.5+/-99.9, 155+/-51.5 cc, p<0.05), right PNTML (1.73+/-0.39, 2.71+/-0.83 ms, p<0.001), and left PNTML (1.83+/-0.43, 2.94+/-0.80 ms, p<0.001) were significantly increased in GII compare to those of GI. CONCLUSION: As the severity of fecal incontinence was increased, rectal capacity, right and, left PNTML were increased.
Anal Canal ; Biofeedback, Psychology ; Compliance ; Fecal Incontinence* ; Female ; Hospitals, Veterans ; Humans ; Korea ; Manometry ; Patient Selection ; Pelvic Floor ; Pudendal Nerve ; Rectal Prolapse ; Reflex ; Ultrasonography

Computerized Tomography is now well established and important noninvasive method of diagnosting mediastinal mass lesions because of its superior imaging of their size, location and internal composition. Authors analyzed and present CT findings of 30 surgically proven mediastinal tumors and cysts that were studied and treated at the Yeungnam University Hospital during recent 6 years. The most common tumor was thymoma (9 cases), and teratoma (6 cases), lymphoma (6 cases), bronchogenic cyst (4 cases), neurogenic tumor (4 cases), pericardial cyst (1 case) were next in order of frequency. There were 5 cases of thymoma showing homogenous solid density mass, 2 cases were malignant thymoma and myasthenia gravis was present in 2 cases. A case of thymolipoma and a case of thymic carcinoma were included. All teratomas were cystic masses but pathognomonic fat, and calcified density were seen only in 4 cases. 5 cases were located in anterior mediastinum and 1 case was in posterior mediastinum. Lymphoma (3 Hodgkin's and 3 non-Hodgkin's) appeared as irregular lobulated mass in anterior mediastinum. Neurogenic tumor (2 ganglioneuroma and 2 neurilemmoma) appeared as homogenous density mass located in posterior mediastinum. Among the 4 bronchogenic cysts, 2 were located in retrotracheal area, 1 was located in subcarinal and 1 was in parathoracic area. One case of pericardial cyst was oval shaped cystic mass located in left pericardiac border.
Bronchogenic Cyst ; Ganglioneuroma ; Lymphoma ; Mediastinal Cyst ; Mediastinum ; Methods ; Myasthenia Gravis ; Teratoma ; Thymoma

We treated a case of extramammary Paget's disease that affected the scalp of a 45-year-old female. It is extremely rare that the disease arises in areas other than the anogenital region and the axillae. The lesion was a round erythematous oozing crusted hairless patch. Histopathologically, many pagetoid cells were found within the epidermis and dermis. The cytoplasms of these cells stained with alcian blue at pH 2.5, CEA, EMA and low-molecular-weight-cytokeratin. The patient underwent a wide local excision. We used a mapping technique to reveal the distribution of microscopically involved lesions.
Alcian Blue ; Axilla ; Cytoplasm ; Dermis ; Epidermis ; Female ; Humans ; Hydrogen-Ion Concentration ; Middle Aged ; Paget Disease, Extramammary* ; Scalp*

No abstract available.
Lymphoma* ; Trachea*

From Nov. 7. 1988 to Nov. 21. 1988, we visited 20 universities' opticians and contact lens stores affiliated with them, and surveyed contact lens wearing process. We found that in all 14 stores, fitting was done by non-ophthalmologists and in 11 stores, wearing was processed without consulting on ophthalmologists.

No abstract available.
HLA-DR Antigens*

Peritoneal dialysis has been widely considered to be the dialytic treatment of choice for acute renal failure in infants and young children, because the technique is simple, safe and easily adapted for these patients. Also peritoneal dialysis in infants might have more effective ultrafiltration and clearance than in adults. In certain circumstances associated with hemodynamic instability, ordinary volume peritoneal dialysis (30-50 ml/kg body weight per exchange) or hemodialysis may not be suitable unfortunately. But frequent cycled, low volume, high concentration peritoneal dialysis may be more available to manage the acute renal failure of newborns and infants. Seven infants underwent peritoneal dialysis for hemodynamically unstable acute renal failure with low exchange volume (14.2±4.2 ml/kg), short exchange time (30 to 45 minutes) and hypertonic glucose solution (4.25% dextrose). Age was 1.9±1.3 months and body weight was 4.6±1.6 kg. Etiology of acute renal failure was secondary to sepsis with or without shock (5 cases) and postcardiac operation (2 cases). Catheter was inserted percutaneously with pigtail catheter or Tenkhoff catheter by Seldinger method. Dialysate was commercially obtained Peritosol which contained sodium, chloride, potassium, magnesium, lactate and calcium. Net ultrafiltration (ml/min) showed no difference between low volume dialysis and control (0.27±0.09 versus 0.29±0.09). Blood BUN decreased from 95.7±37.5 to 75.7±25.9 mg/dl and blood pH increased from 7.122±0.048 to 7.326±0.063 after 24 hours of peritoneal dialysis. We experienced hyperglycemia which were controlled by insulin (2 episodes), leakage at the exit site (2), mild hyponatremia (1) and Escherichia coli peritonitis (1). Two children of low volume dialysis died despite the treatment. In our experience, low volume and high concentration peritoneal dialysis with frequent exchange may have sufficient ultrafiltration and clearance without significant complications in the certain risked acute renal failure of infants.
Acute Kidney Injury ; Adult ; Body Weight ; Calcium ; Catheters ; Child ; Dialysis ; Escherichia coli ; Glucose Solution, Hypertonic ; Hemodynamics ; Humans ; Hydrogen-Ion Concentration ; Hyperglycemia ; Hyponatremia ; Infant* ; Infant, Newborn* ; Insulin ; Lactic Acid ; Magnesium ; Methods ; Peritoneal Dialysis* ; Peritonitis ; Potassium Chloride ; Renal Dialysis ; Sepsis ; Shock ; Sodium ; Ultrafiltration