Kim, Hee-Su;Kim, Eun-Jeong;Choi, Jeong-Hee;Hong, Seok-In;Jeong, Moon-Cheol;Kim, Dong-Man
Food Science and Preservation
/
v.17
no.3
/
pp.405-409
/
2010
Surface cleaning is both essential and troublesome when a consumer seeks to eliminate soil attached to the surface of fresh ginseng because all ginseng purchased in the market is covered with soil, reflecting the post-harvest situation. To facilitate ginseng use at home, a fresh-cut type of ginseng is required. As a first step toward production of such ginseng, several washing and dipping treatments were investigated with respect to surface cleaning and reduction of microbial populations on fresh ginseng. In terms of microbial distribution on the surface of fresh ginseng, higher levels of viable bacteria (6.63 log CFU/each) and fungi (5.12 log CFU/each) were present on the rhizome head than on other regions of the root. Of the washing treatments tested, hand-brushing was effective for surface cleaning and to reduce microorganism levels on fresh ginseng, but use of a high-pressure water spray followed by hand-brushing was optimally effective. To further reduce the levelsof microorganisms on the surface of fresh ginseng after washing, additional dipping treatments in 70% (v/v) ethanol and electrolyzed acidic water (at pH 2.3) were somewhat effective but showed no significant differences compared with other dipping treatments tested, including a 3 ppm ozone solution, a 200 ppm sodium hypochlorite solution, or hot water at $50^{\circ}C$.
Objectives : The author has studied the effects of behavior of preventive treatment on job satisfaction in dental hygienist. Methods : The hygienists who had worked from June 27th to August 1st in 2011 were explained about this research objectives and only the hygienists who agreed with this research participation were conducted a self-administered Questionnaire survey and the results were collected immediately. The collected questionnaire was 297, but the final 250 questionnaire were decided as a target except for the trustless ones. This analysis was extracted using SPSS(SPSS 12.0 for windows, SPSS Inc, Chicago, USA). Results : 1. Preventive treatment of dental hygienist was shown as this order - Educational needs 4.25, Importance 4.12, Usefulness 4.09, Perform 3.42. Job satisfaction was reached the moderate level. 2. Analysis of preventive treatment of hygienist was shown as this order - Basic brushing education 4.72 was ranked the highest, Taking patient history and Incremental dental health care 4.58 was held the second place. Dental caries activity tests 3.30 was shown the lowest figures. Response of preventive treatment conducting was like this order - Taking patient history 4.30, Dental prophylaxis 4.28, Basic brushing education 4.11, Incremental dental health care 4.04. Dental caries activity tests 2.05 was shown the lowest figures. 3. General characteristics in behavior of preventive treatment was resulted in this case that the respondents who have worked for less one year in current job than the ones who have worked for more than five years was shown such a low level, this was taken as a meaningful difference.(p=0.008) 4. It was shown that the higher fulfillment of preventive treatment(${\beta}$=0.340, p<0.001) and the greater earnings(${\beta}$=0.194, p=0.001) and usefulness of preventive treatment(${\beta}$=0.130, p=0.042), the higher job satisfaction. Conclusions : Considering these results, environment where the hygienists can concentrate on preventive treatment which is their proper job should be built up as soon as possible. And through this environment, the atmosphere where hygienists, as oral health professionals, can play a role to improve the oral health of the people by boosting job satisfaction should be created. Also It is thought that an institutional, actual improvement-changing the social awareness towards hygienists and dentists, the recognition of scope of the hygienists' work - should be established urgently.
To get the evidences for decreasing the discomfort, dissatisfaction, and for improving management of the implant prothesis through assessment implant patients' awareness and discomforts about care of the prostheses. The subjects were 300 implant patients who treated in the 20 dental clinics in Pusan, Ulsan and Daegu. The general characteristics, recognition, maintenance, discomfort and dissatisfaction, and oral hygiene status were collected. Level of the discomfort and dissatisfaction was measured by a 5 Likert scale, and analyzed by the equivalent of 100. The life-span of the implants was overestimated, however, periodic recall check and scaling were underwent. The level of discomfort and dissatisfaction was generally good, but many of them (65.3%) complained the food impaction. As a result of the multiple regression analysis, level of the discomfort and dissatisfaction increased in case of more number of the prosthesis ($\beta$=0.864), however decreased in case of more frequent teeth brushing ($\beta$=0.737), more frequent periodic check ($\beta$=-0.737), longer duration from the implantation ($\beta$=-0.090). It is very important for the implant patients to be recognized that the lack of care may shorten the life-span of the implant prosthesis. Therefore, efforts of the continuous oral hygiene care such as, periodic recall check, scaling, teeth brushing, the correct using of additional oral hygiene product, and education would be more emphasized.
The purpose of this study was to obtain baseline data for establishing oral health policy and developing oral health among industrial workers. A question was used to question paper 226 workers of D heavy industrial company in Sacheon-City. The result obtained were as follows: 1.Generally dental patients asked to not prevention treatment but treatment of dental disease. 2.Most of workers respondent that their oral health is so so.(52.2%). 3.Respondents reported 76.1% of dental calculus, 55.8% of sensitive to cold and hot things. 4.Oral health attitude is tooth brushing experience (39.8%), scaling experience (75.7%), when brushed area all teeth, gingiva and tongue(47.3%). 5.81.8% of respondents received no teeth pain when brushing time is over 3 minutes and 83.7% of smokers had calculus.
This study is to enforce to ready basic data of effective school dental health education for dental caries prevention, relation knowledge of class, feeding practice and snack intake preference actual conditions, food and caries executed investigation by own recording way using questionnaire consisted of dental health education awareness to some business world man high school locating in Kyonggi Province. Analyzes result that total 487 people respond in SPSS WIN 13.0 programs and got following sequence The obtain result were as follows 1. Results about habit of breakfast was the most by 36.1% a student who have breakfast every day, and a student who hardly eat dominated 32.9%. Second-year student hardly had breakfast (p<.01). 2. A student who answer that snack kind that often eat was cookies and snack kind was the most by 37.2%, and a student who answer that symbol drink was a carbonated drink was the most by 50.9%. 3. Relation knowledge degree appeared grand mean among 18 points perfect score by 12.36 with food and caries. Third-year student knowledge degree was the highest, and second-year student was the lowest knowledge degree by class (p<.01). 4. Existence and nonexistence of experience of dental health education appeared a student who experience that take dental health education does not exist by 57.1%. There was experience that take dental health education as class is low by class, and as class is high, experience did not exists (p<.05). 5. Time that take dental health education for the first time was the most by 56.7% a student who respond 'Babyhood', grade in school is low by class 'Babyhood', and is high by class responded 'Middle school'(p<.05). 6. Awareness of dental health education necessity 'may educate dental health and does not' a student 56.3%, half was looked attitude which students who exceed are insincere about dental health education necessity. 7. When educate dental health, contents was the most by 44.6% 'brushing and mouth article directions' to be educated importantly, and was expose by caries 31.2%, gum disease 10.1%, scaling 9.0%, prosthetic dentistry and implant 5.1% period of ten days, third-year student 50.8% said that 'brushing and mouth article directions' is important (p<.05). Dental health education is practiced during life, and is a teaching that should be remembered. Need to develop epoch-making and interesting education program that is correct in subject to do as quickly as possible, and should be achieved major road of dental hygienist. Dental hygienist will have to settle as quickly as possible as expert of prevention that is natural business and education and help in dental health education development under effort between country and dental association effective.
Primary school is regarded as an important period when many health-related behaviors and life-styles begin to be formed. Acquiring them through school heath education has a strong influence on the health promotion of not only the family but also the community. The objectives of this study were to evaluate current oral health care of elementary schools in Chungnam province and to provide information for further development in elementary school oral health. We performed a questionnaire survey to 280 health teachers and among them, 155 teachers answered. The result of this study were as follows: 1. Sixty five percent of the health teachers had little interest in oral health. Major information sources for teaching oral health were books in 58.1% of the 155 teachers and 83.2% of teachers spent 30 minutes to 1hour per day in oral health care practice for the students. 2. Contents of the oral health education were composed of regular and special curriculums, and an average of education time during a semester was 2.6 hours in 3rd grade, and 1.3 hours in first and second grade. 60.6% of the teachers made the children practice the proper method of tooth brushing during the education time. 3. Major problems in oral health education were insufficient time, lack of equipment and difficulty in teaching method. The educational media were tooth models among 91.0% and OHP among 85.2% of the teachers. The tooth model was usually used in first to fourth grades and OHP in fifth to sixth grades. But 63.9% health teachers need to develop stronger educational methods using multimedia. 4. Meanwhile the most important strategy of oral health in urban schools was health education, that of rural schools was fluoride mouth-rinsing programme. Fluoride mouth-rinsing programmes were performed by 60.0% of the elementary school. Periodic dental examination was performed in all elementary schools. 98.2% of the schools sent the results home through school notification letters, but post-examination management was performed in only 67.1% of them 64.5% of the health teachers do follow-ups on the oral disease of the children after the examination. Only 0.7% of the schools have oral health education plans for the students' parents. Considering these major strategies for elementary school oral health care were health education, practicing proper methods of tooth brushing, periodic dental examinations, and fluoride mouth-rinsing programmes. But health teachers need more time for oral health education, practicing and management, and developing education materials. With regard to the high demand for oral health education and poor follow-up after periodic examination, the oral health education in elementary school should be considered as a formal educational course for more proper management of oral health, including application of major strategies to the children in earlier grades and efforts for increasing recognition and participation of the parents.
To evaluate the effect of cetylpyridinium chloride in a powder form when used concomitantly with a commercial flouride containing tooth paste on inhibition of plaque formation, on gingivitis, and on irritation of oral mucosa, a double--blind, randomized parallel study was set up. Cetylpyridinium chloride was incorporated into a ligh brown colored powder with menthol added for scent. There were no diffemces between the active agent and the placebo which did not contain cetylpyridinium chloride in appearance, color, smell, taste, or dispenser. 98 healthy volunteers were assigned to one of two groups: brushing 3 times a day with flouride toothpaste and cetylpyridinium chloride powder, or brushing 3 times a day with flouride toothpaste and placebo. Before the test period, the subjects received through tooth cleaning and polishing. At basteline, GI, PI, BOP, and GCF of the Ramfjord teeth were measured in the experimental and placebo groups including 58 and 42 subjects repectively, After 4 weeks, GI, PI, BOP, GCF, compliance, irritation of the oral mucosa(redness, pus drainage, edema) and adverse reactions were measured. The PI, GI, and BOP of the experimental group recorded at baseline are 0.19${\pm}$0.19, 0.42${\pm}$0.31, and 0.08${\pm}$0.15. These scores showed significant decrease after 4 weeks of test period(0.11${\pm}$0.15, 0.22${\pm}$0.24, 0.02${\pm}$0.09 repectively at the end of the study) and inhibition of plaque accumulation and resolution of gingival inflammation could be observed. GCF shoed slight increase but this was not statistically different. Comparison of changes in measured scores of control and experimental groupshow GI, PI of the test indices have decreased. Test group showed significantly greater decrease in gingivitis and plaque accumulation after 4 weeks. GCF and BOP also showed greater decrease thant the control group but this difference was not statistically significant. At no time of the study period did any of the subjects show signs of irritation of the oral mucosa or adverse reactions. Following conclusions could be obtained from this study. The combined use of cetl powder and flouride toothpaste showed greater inhibition of plaque accumulation and greater decrease of gingivitis than use of flouride toothpaste with placebo agent.
Kim, Gyung-Min;Ku, Hye-Min;Lee, Eun-Song;Kang, Si-Mook;Jong, Elbert de Josselin de;Kwon, Ho-Keun;Kim, Baek-Il
The Journal of the Korean dental association
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v.55
no.2
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pp.156-164
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2017
Purpose: The aim of this in vitro study was to assess changes in remineralization by stimulated human saliva over a short period of 48 hours with quantitative light-induced fluorescence (QLF) technology. Materials and Methods: Bovine incisor surfaces were demineralized for 10 days. Two types of stimulated saliva were collected from 7 healthy persons. 24 hours after tooth brushing (Stimulated saliva group) and immediately after tooth brushing with 1,000 ppm NaF dentifrice (Dentifrice saliva group). The specimens were immersed in saliva and fluorescence images were obtained by QLF-digital (QLF-D $biluminator^{TM}$,) at 2, 4, 6, 12, 24, and 48 hours fluorescence loss (${\Delta}F%$) of the lesions. A paired t-test was performed to assess fluorescence differences between before (${\Delta}F_{baseline}$) and after (${\Delta}F_{treatment\;time}$) the remineralization process. Results: Before the remineralization, the mean ${\Delta}F_{baseline}$ of the initial demineralized specimens was $-18.42{\pm}0.15$ (%). In both groups, the ${\Delta}F$ values obtained at baseline and after 2 hours were statistically significant (P < 0.001), indicating recovery of the lesions by approximately 40% after 2 hours. After 48 hours, remineralization rates were slightly higher (49%) for the stimulated saliva group than for the dentifrice saliva group (41%), but the difference was not statistically significant. Conclusions: With QLF minute degrees of remineralization by saliva can be measured in periods as short as 2 hours. Additionally no significantly higher effects of remineralization were observed in the dentifrice saliva group when compared to the stimulated saliva group.
Background: Although many authors have reported that the median survival time of surgically resected non-small cell lung cancer (NSCLC) was shorter in aneuploid than in diploid determined by flow cytometry, there are few reports about DNA ploidy using bronchial brushing material in all types of lung cancer. Method: The DNA ploidy test results of 109 consecutive patients with lung cancer were analyzed to find the relationship of DNA ploidy and anatomic or physiologic stage. And the differences of the response to various therapeutic modalities according to DNA ploidy were evaluated at least 8 weeks after the begining of the therapy. Results: Numbers of patients with DNA aneuploid pattern or high proliferative activity (S+G2M>22%) were not different among the various cell types of lung cancer. The relationship of DNA ploidy and anatomic or physiologic stage was not significant. However, NSCLC patients with high proliferative activity showed more advanced anatomic stage than those without that (p<0.05). The short-term response rate to therapy depended on the anatomic (p<0.005) or physiologic stages (p<0.05) in patients with NSCLC, and not on DNA ploidy or proliferative activity. Conclusion: DNA ploidy test using bronchial brushing material revealed that high proliferative activity means advanced anatomic stage, but it was not useful to predict the therapeutic response.
Kim, Sung Bin;Park, Jin Hee;Kim, Ye Na;Oak, Chul Ho;Jang, Tae Won;Jung, Man Hong;Chun, Bong Kwon
Tuberculosis and Respiratory Diseases
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v.67
no.6
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pp.545-550
/
2009
Background: Endobronchial ultrasonogram (EBUS) has increased the diagnostic yield of a bronchoscopic biopsy of peripheral pulmonary lesions (PPL). This study evaluated the diagnostic yield of EBUS-guided transbronchial biopsy (TBB) and the visibility of EBUS PPL. Methods: Between August 2007 and November 2008, 50 patients (32 men and 18 women, median age, 61.1${\pm}$10 yrs; range, 16 to 80 yrs) whose PPL lesions could not be detected with flexible bronchoscopy were enrolled in this study. Among the 50 patients, 40 cases were malignant lesions (adenocarcinoma 25, squamous cell carcinoma 10, small cell carcinoma 5) and 10 cases were benign lesions (tuberculoma 7, fungal ball 1, other inflammation 2). Results: The mean diameter of the target lesion was 35.4${\pm}$4.3 mm. Of the 50 patients examined, the overall diagnostic yield by EBUS-TBLB was 46.0% (23/50). The visualization yield of EBUS was 66.0% (33/50). A definitive diagnosis of PPL localized by EBUS was established using EBUS-TBLB in 69.6% (23/33) of cases. The diagnostic yields from washing cytology and brushing cytology from a bronchus identified by EBUS were 27.0% and 45.4% respectively. The diagnostic yields reached 78.7% when the three tests (washing cytology, brushing cytology and EBUS-TBLB) were combined. The visualization yield of EBUS in lesions <20 mm was significantly lower than that in lesions ${\geq}$20 mm (p=0.04). The presence of a bronchus leading to a lesion (open bronchus sign) on the chest CT scan was associated with a high visualization yield on EBUS (p=0.001). There were no significant complications associated with EBUS-TBLB. Conclusion: EBUS-TBLB is a safe and effective method for diagnosing PPL. The lesion size and open bronchus signs are significant factors for predicting the visualization of EBUS.
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