PURPOSE: The aim of this study was to determine differences in shear bond strength to human dentin using immediate dentin sealing (IDS) technique compared to delayed dentin sealing (DDS). MATERIAL AND METHODS: Forty extracted human molars were divided into 4 groups with 10 teeth each. The control group was light-cured after application of dentin bonding agent (Excite(R) DSC) and cemented with Variolink(R) II resin cement. IDS/SE (immediate dentin sealing, Clearfil(TM) SE Bond) and IDS/SB (immediate dentin sealing, Adapter(TM) Single Bond 2) were light-cured after application of dentin bonding agent (Clearfil(TM) SE Bond and Adapter(TM) Sing Bond 2, respectively), whereas DDS specimens were not treated with any dentin bonding agent. Specimens were cemented with Variolink(R) II resin cement. Dentin bonding agent (Excite(R) DSC) was left unpolymerized until the application of porcelain restoration. Shear strength was measured using a universal testing machine at a speed of 5 mm/min and evaluated of fracture using an optical microscope. RESULTS: The mean shear bond strengths of control group and IDS/SE group were not statistically different from another at 14.86 and 11.18 MPa. Bond strength of IDS/SE group had a significantly higher mean than DDS group (3.14 MPa) (P < .05). There were no significance in the mean shear bond strength between IDS/SB (4.11 MPa) and DDS group. Evaluation of failure patterns indicates that most failures in the control group and IDS/SE groups were mixed, whereas failures in the DDS were interfacial. CONCLUSION: When preparing teeth for indirect ceramic restoration, IDS with Clearfil(TM) SE Bond results in improved shear bond strength compared with DDS.
Bisphenol A-Glycidyl Methacrylate ; Ceramics ; Collodion ; Dental Porcelain ; Dentin ; Humans ; Molar ; Resin Cements ; Shear Strength ; Tooth

1. Present study was made to observe the plasma renin activity in the patients of benign essential hypertension, malignant hypertension, acute or chronic glomerulonephritis, liver cirrhosis with or without ascites, congestive heart failure, and massive bleeding due to various causes. 2. It was found that the substance with constrictive action on the rat colon had the hypertensive action. 3. The normotensive group showed the renin activity of 1.81+/-1.18ng/ml. 4. Benign hypertension group showed the level of 3.14+/-3.27 ng/ml which was the significantly elevated level compared to the normal group. 5. Malignant hypertensive group showed 8.47+/-9.48 ng/ml, which was not only the apparently elevated value than that of normal group, but also showed significant difference from that of benign essential hypertension. 6. The levels of 5.6+/-2.88 ng/ml and 27.5+/-12.36 ng/ml in chronic and acute glomerulonephritis respectively showed the significantly elevated level than the normal group, and the difference between the acute and chronic glomerulonephritis was also found to be significant. 7. The hepatic cirrhosis with or without ascites showed the level of 3.77+/-2.83 ng/ml and 0.80+/-0. ng/ml respectively. The value of the former was the significantly elevated compared with the normal group, and the later was lowered. 8. The level of 11.11+/-4.12 ng/ml was significantly elevated compared to that of normal group in congestive heart failure. 9. It is suggested that the renin activity assumes to be changed to the kind and the phase of the diseases and according to present data of elevated renin activity in essential hypertension, renin may play a secondary role in essential hypertension rather than to be a primary.
Animals ; Ascites ; Colon ; Glomerulonephritis ; Heart Failure ; Hemorrhage ; Humans ; Hypertension ; Hypertension, Malignant ; Liver Cirrhosis ; Plasma* ; Rats ; Renin*

Congenital ectodermal dysplasia are a group of familial disorders that affect tissues and organs of ectodermal origin to varying degrees. It devided hidrotic type and anhidrotic type by geneologic origin and distinct clinical manifestationa. The hidrotic type usually trait by autosomal dominant gene and manifested dystrofic nails, defect of hair and eyebrow and palmoplantar hyperkeratosis. This patient is 16 year oId male. He had been dystrophic nails, alopecia since at birth, thereafter palmoplantar hyperkeratosis, clubbing fingers noted. C.R.C. Urinalysis, stool examination, chest x-ray were within normal limit. Biopsy specimen from palm revealed hyperkeratosis, hypergranulosis, acanthosis and, mild inflamrnatory cell infiltrate on upper dermis. Biopsy speeimen from the scalp revealed norrriaI findings except slight hypoplasia of ebaceaus gland.
Alopecia ; Biopsy ; Dermis ; Ectoderm ; Ectodermal Dysplasia* ; Eyebrows ; Fingers ; Genes, Dominant ; Hair ; Humans ; Male ; Parturition ; Scalp ; Thorax ; Urinalysis

BACKGROUND: The purpose of this clinical study was to evaluate the Incentive Spirometry (IS) and Deep Breathing Exercises (DBE) to prevent postoperative pulmonary complications after abdominal surgery in patients over 60 years of age. METHODS: We prospectively randomized 90 patients into 1 of 3 groups: the control group (30 patients) received no respiratory treatment, the IS group (30 patients) was treated with incentive spirometry 4 times daily and DBE group (30 patients) carried out deep breathing exercises under supervision for 15 min 4 times daily. ABGA was taken at ward, PR (preop.room), RR (recovery room), POD1 day and POD2 day. Roentgenographic changes observed at 24 h. and 48 h. after surgery. Pulmonary complications were defined as the development of 3 or more of 6 new findings: cough, sputum, dyspnea, chest discomfort, temperature greater than 38oC, pulse rate more than 100 beats/min. RESULTS: PaO2 in the DBE group and IS group at PR were significantly increased than the values at ward, and the values of the PaO2 in the DBE group at RR and POD1 day, and those of IS group at PR and POD2 day were significant higher than those of the control group (p<0.05). The frequency of development of pulmonary complications (43.3% in the control group, 20% in the DBE group, 20% in the IS group) and roentgenographic changes were comparable in the 3 groups (26.7%, 16.7%, 20% respectively). The DBE group showed the different incidence of postoperative pulmonary complications between upper and lower abdominal surgery (upper: lower= 35.7: 6.3%). CONCLUSIONS: We concluded that DBE and IS were effective in preventing postoperative pulmonary complications after abdominal surgery and lower abdominal surgery causes lesser postoperative pulmonary complications than upper abdominal surgery.
Breathing Exercises ; Cough ; Dyspnea ; Heart Rate ; Humans ; Incidence ; Motivation* ; Organization and Administration ; Prospective Studies ; Respiration* ; Spirometry* ; Sputum ; Thorax

OBJECTIVES: To explore the possible effect of an interaction between summertime heat waves and ozone on cardiopulmonary mortality during the 1994 heat wave in Korea. METHODS: The unusually hot summer of 1994 in Korea was defined as the heat wave in this study. We examined the associations of air pollutants with daily cardiopulmonary deaths between 1991-1995, considering the product term of the heat wave and each pollutant, weather and time trends. RESULTS: During the heat wave, while temperatures were uniformly higher than those of other summers, the within-heat-wave difference in mortality paralleled that in the regional ozone levels. In terms of the influence of the heat wave, the results of ozone were different to those of total suspended particles (TSP) and sulfur dioxide (SO2). The ozone association (relative risk (RR) =1.036; 95% confidence interval (CI) = 1.018-1.054) was observed only under heat wave conditions, while the TSP (RR =1.006, 95% CI = 0.999-1.012) and the SO2 (RR =1.018, 95% CI = 1.011-1.024) associations were found under normal weather conditions (per interquartile increase of each pollutant; results of three pollutants model). The ozone association under heat wave was attributable to the statistical interaction between the heat wave and ozone. CONCLUSIONS: These results support the possibility of a biological synergy between the heat wave and ozone, one that is not evident between the heat wave and other major pollutants like particles or SO2.
Air Pollutants ; Air Pollution ; Hot Temperature* ; Infrared Rays* ; Korea* ; Mortality* ; Ozone* ; Sulfur Dioxide ; Weather

The most frequently used serodiagnostic test for syphilis in Korea is VDRL test, which is one of several flocculation tests utilizing cardiolipin-lecithin as antigen. This test remains popular because it is easily performed, inexpensive, is standard for screening purposes, and is useful for following the serologic response to treatment. A common problem is weakly reactive (or 'rough' result) VDRL test or reactive VDRL in the absence of definite evidence of present or past syphilis; the diagnosis of syphilis in these cases should be confirmed by using the specific treponemal antigen tests. The Fluorescent Treponemal Antibody-Absorption (FTA-ARS) test is the result of continued attempts to improve the original FTA procedures. This test uses virulent T. pallidum (Nichols strain) as antigen and uses fluorescein-tagged antihuman globulin as reaction indicator. The FTA-ABS test is very sensitive in all stage of syphilis, especially in early syphilis. The FTA-ABS test was carried out on 448 persons with reactive and weakly reactive VDRL tests and divided the groups of routine physical check and out patients. (countinued..)
Diagnosis ; Flocculation Tests ; Fluorescent Treponemal Antibody-Absorption Test ; Humans ; Korea ; Mass Screening ; Outpatients ; Syphilis*

An 8-year-old girl had a rice sized erythematous nodule secreting mucoid fluid situated above the right sternoclavicular joint area since birth. Histopathological findings of the lesion revealed predominant mucous acini, serous acini, demilunes of mixed acini and excretory ducts in the deep dermis compatible with salivary gland. Electron microscopic findings revealed a lumen and serous cells containing serous granules and rough endoplasmic reticulurn. Recurrence has not been noted following total excision of the nodule.
Child ; Dermis ; Female ; Humans ; Neck* ; Parturition ; Recurrence ; Salivary Glands* ; Sternoclavicular Joint

Kawasaki disease is described by fever lasting five days or more, bilateral conjunctival injection, changes of lips and oral cavity, polymorphous exanthema, acute non-purulent cervical lymphadenopathy, and changes of extremities. Atypical Kawasaki disease is defined as fewer than 4 of 6 criteria described above including coronary artery abnormalities. Especially, atypical clinical manifestations of Kawasaki disease appear in infants younger than 6 months old of age. Thus we recommend echocardiography in early infancy who has prolonged fever in order to diagnose atypical Kawasaki disease and treat early. We have experienced three cases of atypical Kawasaki disease with coronary aneurysm who were admitted because of fever and revealed coronary aneurysm on echocardiography.
Coronary Aneurysm* ; Coronary Vessels ; Echocardiography ; Exanthema ; Extremities ; Fever ; Humans ; Infant ; Lip ; Lymphatic Diseases ; Mouth ; Mucocutaneous Lymph Node Syndrome*

Although several histopathological changes have been developed in frozen shoulder, frozen shoulder is mostly accompanied by the changes of the rotator cuff which has the most important function in movement and has a role in stabilizing the shoulder joint. The changes of the rotator cuff in frozen shoulder have not been reported in Korea yet, but Simon reported that there was an attenuation of the rotator cuff in frozn shoulder. Accordingly, we observed the changes of the rotator cuff in frozen shoulder by ultrasonography, which has no rsdiation exposure and is non-invasive. The authors practiced the shoulder ultrasonography on 36 patients with a pain and limitation of motion in shoulder at the Dept. of Orthopedic Surgery, Hangang Sacred Heart Hospital, Hallym University, from March in 1988 to August in 1988. The results are as follows ;1) Ultrasonography is thought to contribute a great deal in detection of the changes of the rotator cuff, especially of the thickness of the rotstor cuff. 2) Among 36 patients, the thickness of the rotator cuff of 35 patients was 6.494+1.008 mm (M+SD) in the affected shoulder and 6.475+1.052 mm(M+SD) in the unaffected shoulder. In only one pstient, the thickness of the rotator cuff was 1.68+0.58 mm(M+SD) in the affected shoulder and 553+1.16mm(M+SD) in the unaffected shoulder. Theres no significant change in the thickness of the rotator cuff measured by ultrasonography in frozen shoulder. 3) Ultrasonography is an excellent diagnostic method in detecting the rupture of the rotator cuff in frozen shoulder.
Bursitis ; Heart ; Humans ; Korea ; Methods ; Orthopedics ; Rotator Cuff ; Rupture ; Shoulder ; Shoulder Joint ; Ultrasonography

No abstract available.
Bone and Bones* ; Dental Implants*