No abstract available.
Daegu*

OBJECTIVE: The present study was aimed at an analytical formulation of the micro-implant related torque as a function of implant size, i.e. the diameter and length, screw size, and the bony resistance at the implant to bone interface. METHODS: The resistance at the implant to cancellous bone interface (S(can)) was assumed to be in the range of 1.0-2.5 MPa. Micro-implant model of Absoanchor (Dentos Inc. Daegu, Korea) was used in the course of the analysis. RESULTS: The results showed that the torque was a strong function of diameter, length, and the screw height. As the diameter increased and as the screw size decreased, the torque index decreased. However the strength index was a different function of the implant and bone factors. The whole Absoanchor implant models were within the safe region when the resistance at the implant/cancellous bone (= S(can)) was 1.0 or less. CONCLUSION: For bone with S(can) of 1.5 MPa, the cervical diameter should be greater than 1.5 mm if micro-implant models of 12 mm long are to be placed. For S(can) of 2.0 MPa, micro-implant models of larger cervical diameter than 1.5 mm were found to be safe only if the endosseous length was less than 8 mm.
Daegu ; Torque*

Breakfast is an important factor for health status of people. This study was carried out to investigate the dietary life related to breakfast of workers and to develope some nutritional convenient diets for the workers. The collected data were consisted of items about general characteristics of the subjects, breakfast pattern, factors affecting on breakfast and opinions on convenient foods. The subjects were classified into labor workers (n = 202) and office workers (n = 227) aged from twenties to fifties. The rate of skipping breakfast in workers was 31.5% and higher according to the increase of age. Their favorite style of breakfast was mostly Korean traditional diets, but only 38.1% of the subjects had cooked rice as breakfast. The main reason for skipping breakfast was that they had no time for it. But 65.4% of total workers had experiences of using convenience diets. They had these kinds of diets because of convenience. These results suggest that recipe development of convenient breakfast is very important for the good dietary life of the workers.
Breakfast* ; Daegu* ; Diet

STATEMENT OF PROBLEM: Many surface processing methods of dental implant have been developed, the laser processing is one of them. PURPOSE: This study was to investigate in vitro the fatigue resistance of implants treated with laser method(CSM implant, CSM Company, Daegu, Korea). MATERIAL AND METHODS: Fatigue tests of 23 laser treated CSM implant(CSM Company, Daegu, Korea) were conducted using Instron 8871 (Load cell, 5 kN, Instron Co., England), according to ISO 14801 (2003), RESULTS: From 300 N, each specimens were not fractured and withstood until more than 5,000,000 cycle. CONCLUSION: Within the limits of this in vitro study, implants treated with laser method (CSM implant, CSM Company, Daegu, Korea) have had enough rigidity and fatigue resistance to use clinically with reliance.
Daegu ; Dental Implants* ; Fatigue*

PURPOSE: We compared the results of the double Maddox rod test (DMRT), which is commonly performed in clinics as a subjective torsion test for superior oblique muscle palsy, with those of the Bagolini striated lenses test (BSLT) in a least dissociating condition to predict the cyclofusional capacity. METHODS: Twenty-five patients with acquired superior oblique muscle palsy were tested for degree of subjective torsion with DMRT and BSLT in primary position and down-gaze in Daegu Catholic University Hospital from May 2014 to March 2015. DMRT was performed in a dark room and BSLT in a lighted room. RESULTS: Mean extorsional degree in primary position was 3.40 ± 2.58° on DMRT and 1.88 ± 2.92° on BSLT, a significant difference (p = 0.000). In down-gaze, mean extorsional degree was 4.16 ± 2.90° with DMRT and 2.40 ± 2.90° with BSLT (p < 0.001). CONCLUSIONS: The subjective torsional measurement with BSLT was significantly smaller than with DMRT, and the cyclofusional capacity in patients with acquired superior oblique palsy was 1.5° in primary position and 1.8° in down-gaze. BSLT is helpful in addition to DMRT and fundus photograph for the evaluation of cyclotropia in patients with superior oblique muscle palsy, and this test may yield clinically important information for predicting the cyclofusional capacity of patients with superior oblique muscle palsy.
Daegu ; Humans ; Paralysis*

Infected nonunion continues to be a major therapeutic challenge. Twenty-five cases of infected nonunion of tibia were trested by Papineau's cancellous bone graft at Department of Orthopedic Surgery, Taegu Medical Center from Jan. 1981 to Dec. 1987. The results were as follows. 1. Decortication, sequestrectomy and cancellous bone graft were performed simultaneously in every case. 2. Osseous union and eradication of infection were obtained at average 8 months.
Daegu ; Orthopedics ; Tibia ; Transplants

PURPOSE: The purpose of this study was to examine stress and social support according to Internet addiction in juveniles. METHOD: Subjects were middle and high school students in Daegu (N=492). Data were collected using a self-rating questionnaire including demographic data, which was the Korean versions of an Internet addiction scale, a stress scale and a social support scale. RESULTS: Stress and social support were significantly different according to Internet addition. Significant correlations were observed between Internet addiction and stress and between Internet addiction and social support. CONCLUSION: These results indicate that the more addictive to the Internet a student is, the more stress and the less social support he/she has. Therefore, further studies are needed to generalize these results and examine widely the effects of Internet addiction.
Daegu ; Humans ; Internet* ; Surveys and Questionnaires

Taxi drivers are exposed to vehicular exhaust aerosols which are a major source of atmospheric lead pollution in Korea where lead additives are incorporated in petrol. To investigate the blood lead concentration, their correlation factors and influences on taxi drivers, samples were collected from 90 taxi drivers who were living in the Taegu City, during August, 1989. Blood lead concentration was estimated by the atomic absoption spectrophotometer (IL.551) equipped with flameless furnace atomizer (IL.665). The results were analyzed statistically and compared with control group were 26.34 +/- 6.53 microgram/dl and 20.77 +/- 4.80 microgram/dl respectively (p<0.01). No significant correlation was observed between the blood lead concentration of taxi drivers and driver career (r=0.093). There were no difference of statistical significance in the blood lead concentration of smokers and nonsmokers.
Aerosols ; Daegu* ; Korea* ; Nebulizers and Vaporizers

A study was conducted to investigate the blood lead and zinc protoporphyrin(ZPP) concentrations of the underground parking lot workers who exposed to vehicular exhaust aerosols which contained lead. The blood samples were collected from 25 study subjects of underground parking lot and from 33 controls in Taegu, from July to October, 1997. And also the related factors to the blood lead and ZPP concentrations were investigated. Blood lead concentration and ZPP concentration were measured by flameless furnace atomic absorption spectrophotometer (IL.551) and hemetofluorometer, respectively. The mean blood lead concentrations of study subjects and controls were 23.10+/-20.77microgram/dl and 12.99+/-12.71microgram/dl, respectively(p<0.05), and the mean blood ZPP concentrations of study subjects and controls were 40.72+/-9.46microgram/dl and 38.21+/-10.97microgram/dl, respectively. No significant correlations were observed between the blood lead concentration of the study subjects and their job duration and between blood ZPP concentration of the study subjects and their job duration. There were no statistically significant differences in the blood lead concentration and the blood ZPP concentration of smokers and nonsmokers. In multiple regression analysis on blood lead concentration of the study subjects and controls, occupation was a only significant dependent variable. In case of bood ZPP concentration, age was a only significant dependent variable in the study subjects and controls.
Absorption ; Aerosols ; Daegu ; Occupations ; Zinc

BACKGROUND/OBJECTIVES: Most Koreans consume nearly 70-80% of the total sodium through their dishes. The use of a salinometer to measure salinity is recommended to help individuals control their sodium intake. The purpose of this study was to compare sodium content through chemical analysis and salinity measurement in foods served by industry foodservice operations and homemade meals. MATERIALS/METHODS: Workplace and homemade meals consumed by employees in 15 cafeterias located in 8 districts in Daegu were collected and the sodium content was measured through chemical analysis and salinity measurements and then compared. The foods were categorized into 9 types of menus with 103 workplace meals and 337 homemade meals. RESULTS: Workplace meals did not differ significantly in terms of sodium content per 100 g of food but had higher sodium content via chemical analysis in roasted foods per portion. Homemade meals had higher broth salt content and higher salt content by chemical analysis per 100 g of roasted foods and hard-boiled foods. One-dish workplace meals had higher salinity (P < 0.05), while homemade broths and stews had higher sodium content (P < 0.05 and P < 0.01, respectively). The sodium content per 100 g of foods was higher in one-dish workplace meals (P < 0.05) and in homemade broths and stews (P < 0.01 and P < 0.05, respectively). CONCLUSIONS: The use of a salinometer may be recommended to estimate the sodium content in foods and control one's sodium intake within the daily intake target as a way to promote cooking bland foods at home. However, estimated and actual measured values may differ.
Cooking ; Daegu ; Meals* ; Salinity* ; Sodium*