Dental porcelain should have adequate strength and similar esthetics as natural teeth. Recently esthetics has become a high priority in clinical dentistry. Thus the evaluation of color stability of dental porcelain has become an important part in dental research. The purpose of this study was to evaluate the difference in color stability of 3 types of porcelain (Vintage, VMK 95, CERAMCO II). The porcelain were divided into groups by 2 types of treatment (Glazing or non-glazing and thermocycling or non-thermocycling). The porcelain wee dyed with methylene blue and distilled water, and then the color stability was evaluated with a spectrophotometer. The results were as follow ; 1. The color change of porcelain increased in the order of VMK 95, Vintage, CERAMCO II. But there was no significant difference. 2. The color change decreased in the glazing group compared to the non-glazing group(p<0.05). 3. The color change increased after thermocycling But there was no significant difference. 4. The color change according to dye method was significantly larger with methylene blue copared to distilled water(P<0.05).
Crowns* ; Dental Porcelain* ; Dental Research ; Dentistry ; Esthetics ; Methylene Blue ; Tooth ; Water

PURPOSE: This study aimed to identify the alcohol drinking pattern of parents and to analyze drinking related factors in problem drinking among adolescent's parents. METHOD: This study was conducted through a structured questioning from November 5th to 22th in 2002. Those are 2,522 parents of the students of the 1st and 2nd grade who were selected randomly among 26 middle and high schools located in Socho-gu, Seoul. Data was analyzed using SAS program that included descriptive statistics, Chi-square test, and multiple logistic regression analysis. RESULT: 1. For frequency of drinking, 33.1% of the subjects responded to drink two-four times a month, 26.0% drink more than two times a week. 2. For the amount of drinking, 29.6% drink one or two glasses while 9.4% drink over ten glasses at a time. 3. The mean AUDIT score was 8.27+/-7.02(score of range: 0-40). 4. Based on AUDIT score, drinkers with less than eight point from AUDIT(normal group) were 55.1%, from more than eight point to less than twelve point from AUDIT(problematic drinker) were 16.3%, and more than twelve point from AUDIT(alcohol abuse and dependency) were 28.6%. 5. Based on more than twelve point from AUDIT, female(mother), high school and, have religion, housekeeper were the significantly higher score than counter parts. CONCLUSION: Alcohol drinking pattern and level of drinking of their parents links to their children's drinking and results in family, social, and national loss. Active prevention is needed. Specially, pertinent education about drinking and public education for mothers who are housekeepers should be carried out with concentrated intervention programs for the problematic drinker so alcohol abuse and dependency can be reduced.
Alcohol Drinking* ; Alcoholism ; Drinking* ; Education ; Eyeglasses ; Glass ; Humans ; Korea* ; Logistic Models ; Mothers ; Parents* ; Seoul ; Child Health

PURPOSE: To develop a Critical Thinking Skill Test for Nursing Students. METHODS: The construct concepts were drawn from a literature review and in-depth interviews with hospital nurses and surveys were conducted among students (n=607) from nursing colleges. The data were collected from September 13 to November 23, 2012 and analyzed using the SAS program, 9.2 version. The KR 20 coefficient for reliability, difficulty index, discrimination index, item-total correlation and known group technique for validity were performed. RESULTS: Four domains and 27 skills were identified and 35 multiple choice items were developed. Thirty multiple choice items which had scores higher than .80 on the content validity index were selected for the pre test. From the analysis of the pre test data, a modified 30 items were selected for the main test. In the main test, the KR 20 coefficient was .70 and Corrected Item-Total Correlations range was .11-.38. There was a statistically significant difference between two academic systems (p=.001). CONCLUSION: The developed instrument is the first critical thinking skill test reflecting nursing perspectives in hospital settings and is expected to be utilized as a tool which contributes to improvement of the critical thinking ability of nursing students.
Education, Nursing/*methods ; Female ; Humans ; Interviews as Topic ; Male ; *Program Development ; Questionnaires ; Students, Nursing/*psychology ; *Thinking ; Young Adult

Diffuse interstitial lung disease(DILD) is a large group of heterogeneous diseases that diffusely involve the pulmonary connective tissues, principally subpleural, interlobular and alveolar wall portions. Terminology and classification of these diseases are not uniform, and the cause and the pathogenesis are unknown in many entities. It is generally accepted that the response to therapy is related to the relative degree of cellularity and fibrosis present, therefore a histologic evaluation of the relative extent and severity of these changes is required. We reviewed 52 cases of DILD from January 1990 to May 1995 diagnosed by open lung biopsy to reappraise classification and quantitative assessment of the histopathologic features. Differential histopathologic features between usual interstitial pneumonia(UIP) and nonspecific interstitial pneumonia(NIP) were examined with a correlation of HRCT findings and clinical findings. Among 52 cases of DILD, 18 cases(34.6%) were UIP, 6 cases(11.5%) were hypersensitivity pneumonia was NIP was 5 cases(9.6%), interstitial lung diseases associated with the connective tissue diseases were 5 cases(9.6%), inorganic dusts were 4 cases(7.7%), infections were 4 cases(7.7%), durgs were 2 cases(3.8%), acute interstitial pneumonia was 1 case(1.9%), sarcoidosis was 1 case(1.9%) in order of frequency plus 6 other cases(11.5%). UIP was the most frequent DILD in this study which seemed to be a criteria bias of patient selection on open lung biopsy. Quantitative assessment of histopathologic features was useful in the differential diagnosis of DILD and differentiation of UIP from NIP was possible based on histopathologic features and supported by HRCT. UIP disclosed a significantly high score of fibrotic changes, especially in the interstitial fibrosis, smooth muscle proliferation and honeycombing, otherwise NIP appeared relatively high score in inflammatory changes. Correlation between histopathologic scores and the clinical outcome after steroid therapy or no therapy in UIP was not evident.
Diagnosis, Differential ; Biopsy

No abstract available.
Epidemiology*

No abstract available.
Carcinoma, Renal Cell* ; Carcinoma, Squamous Cell* ; Cervix Uteri* ; Female ; Kidney*

The Laugier-Hunziker syndrome is a rare syndrome characterized by macular hyperpigmentation of the lips and buccal mucosa associated with melanonychia. Onset is usually in adult life and no consistent systemic associations have been reported. Here we report a 39-year-old wonam with a longitudinal pigmented band on a finger and pigmented macules on the lip. We suggest that this is the first report in Korea and the syndrome is presumably more common than recognized.
Adult ; Fingers ; Humans ; Hyperpigmentation ; Korea ; Lip ; Mouth Mucosa

We report a case of solitary congenital calcified nodule of the ear in a 1-year-old female. The lesion was a 2 X 2mm-sized, elevated, slightly erythematous and whitish-centered nodule located since birth on the superior helical rim of her left ear. Histopathological findings fram the totally excised lesion showed calcium deposits as amorphous, basophilic masses in the upper dermis and focal discharge of calcium by means of transepidermal elimination. Surrounding the calcium deposits, lymphohistiocytic infiltrations were present.
Basophils ; Calcium ; Dermis ; Ear* ; Female ; Humans ; Parturition

PURPOSE: The purpose of this study was to determine the changes on Index of Nausea, Vomiting, & Retching (INVR) during a cycle of chemotherapy. METHODS: Forty-three patients hospitalized for chemotherapy at C University Hospital during a period of 5 days from March to May, 2003 were examined. Scores of INVR were measured once a day. Anxiety, anorexia, fatigue, and sleep satisfaction were measured before chemotherapy. Data was analyzed by repeated measures of ANOVA. RESULTS: The score of INVR increased over time during the days of hospitalization and showed a peak on the third day. The score was significantly higher on the third and consecutive cycles than on the first and second cycle. The score was significantly higher in patients in their forties and fifties rather than in their sixties. The score was higher in women than in men, and also increased as the sleep satisfaction decreased. CONCLUSION: These results suggested that specific interventions for relief of nausea & vomiting were needed in middle age, women, the third chemotherapy cycle, and the third day after chemotherapy.
Antineoplastic Agents/*adverse effects ; Female ; Humans ; Male ; Middle Aged ; Nausea/*chemically induced ; Neoplasms/*drug therapy ; Time Factors ; Vomiting/*chemically induced

Holoprosencephaly of unknown definite causes, has been associated with several chromosome abnormalities involving the autosomes and the sex chromosomes. The most commonly reported associations include dup(3p), del(7q), deletions of chromosome 13, trisomy 13, trisomy 18, and triploidy. In previously reported cases in Korea, none were associated with chromosome 21 anomalies. In conclusion, we reported the first case of holoprosencephaly(semilobar type) associated with pure monosomy 21. We experienced a semilobar type holoprosencephaly with monosomy 21 in a neonate who had multiple congenital anomalies, including an abnormal face, a small thorax with widely spaced hypoplastic nipples and nail hypoplasia, lung hypoplasia with severe scoliosis and cardiac abnormalities. Chromosomal analysis revealed a 45, XY, -21.
Chromosome Aberrations ; Chromosomes, Human, Pair 13 ; Chromosomes, Human, Pair 21 ; Holoprosencephaly ; Humans ; Infant, Newborn ; Korea ; Lung ; Monosomy ; Nipples ; Scoliosis ; Sex Chromosomes ; Thorax ; Triploidy ; Trisomy